Repair and maintenance of household machines and appliances, clocks, radio-electronic equipment, televisions, tape recorders, music centers, repair and manufacture of metal products, jewelry provide consumers with the opportunity to restore the consumer properties of used products or purchase new products created according to their individual order.

Services are provided in service technical centers and repair shops. Service centers and workshops for repair and maintenance household appliances, clocks, radio-electronic equipment have premises for receiving visitors, workshops for repair and maintenance, a warehouse for storing repaired products, spare parts and parts, and an administrative room.

Customer service is performed by the receiver, who draws up an application and accepts the product for repair, or operators of the service for receiving applications by phone, via the Internet and by mail.

Repair services are performed by a repairman with a visit to the consumer's home or in a hospital. Consumers can deliver products for repair on their own or use the delivery services of a service center. When products are accepted for repair, malfunctions of the device are recorded, a contract for repair or maintenance is drawn up, and the deadline for fulfilling the order is specified.

If the service is performed at the consumer's home, then the contract and repairs are performed by the repairman. He diagnoses the device, identifies the main malfunctions and their causes. According to the diagnostic results, the type of repair is assigned.

If the repair includes the replacement of defective parts and assemblies, the restoration of worn parts and assemblies, the components used for replacement must be provided for by the regulatory documentation for the device. Components included in the list of products subject to mandatory certification must be certified.

Technological equipment must be certified, measuring instruments and tools verified or calibrated.

Large service enterprises have several shops (for example, a shop for the repair of household machines and appliances, a shop for the repair of transformers). The workshops have production departments: dismantling and troubleshooting, mechanical repair, winding, drying and impregnation, picking, testing station, as well as separate sections where specific types of work are performed to repair transformers, household machines and appliances, appliances and switching devices. In the dismantling and troubleshooting department, the repaired goods are cleaned of contamination, oil is drained from transformers and oil-filled devices, pre-repair tests are performed, electrical equipment is disassembled, troubleshooting is carried out (the condition and degree of wear of individual parts are determined, as well as the scope of the upcoming repair, a defect list and a repair route map are drawn up , hang marking tags on the parts to be repaired, take measures to preserve serviceable parts of electrical appliances), transfer faulty parts to repair areas, and serviceable parts to the picking or assembly department.

The dismantling and troubleshooting department is equipped with lifting and transport vehicles, testing equipment or stands for pre-repair tests, washing baths, pullers, fixtures and tools for disassembling repaired household machines and appliances.

In the mechanical repair department, they repair and, if necessary, manufacture new parts of household machines and appliances (shafts, collectors, brush mechanisms, plain bearings), remix the cores of the rotors and stators of electrical machines and devices, unload the magnetic cores of transformers. This department is equipped with hoisting and transport vehicles, metalworking machines, presses, welding machines, tools and special devices.

If it is necessary to perform work on chrome plating and nickel plating of parts, galvanic baths are installed in a separate room.

In addition to the above equipment, the mechanical repair department has locksmith workbenches, racks and cabinets for storing parts and tools. In the winding department, damaged ones are repaired (insulation is restored) and new windings of electrical machines and devices, transformers and coils of electrical devices are manufactured.

The department is equipped with machines for winding and insulating windings and coils, a machine for making wedges, guillotine shears for cutting insulating materials, machines for shrouding rotors and armatures of electrical machines, welding and soldering tools for connecting winding wires, a test facility for step-by-step control of the insulation of manufactured windings, as well as devices for checking the correct connection of winding circuits.

If necessary, install (in separate room with the presence of ventilation devices and fire extinguishing equipment) an oven for annealing wires, a bath for pickling them and a machine for drawing and calibrating wires of the old winding. Drying-impregnating department is used for impregnation and drying of manufactured windings. Its equipment includes impregnating baths, ovens for drying and baking impregnated windings, hoisting and transport vehicles for transporting massive windings and containers for storing impregnating varnishes and solvents in quantities that provide no more than a daily requirement for them. Given the harmfulness of vapors and volatile particles of varnishes and solvents, their high fire and explosion hazard, the premises of this department are provided with exhaust ventilation devices and fire extinguishing equipment.

The picking department is the place where all repaired, as well as serviceable and some new assembly units and parts of the repaired equipment are delivered. Fully equipped electrical equipment is then transferred to the assembly department. In the assembly department, the general assembly of the repaired equipment is carried out. It is equipped with assembly tools and devices, workbenches and racks, devices for static and dynamic balancing of rotors and armatures of electrical machines, a test bench for performing the entire range of post-repair tests. The test station is located in a separate room and contains high-voltage test electrical installations, stands, various devices and protective equipment. The electrical repair shop includes warehouses for storing the repair fund (individual units and assembly units of electrical equipment: high and low voltage windings of transformers, contact system kits for switches, etc.) and repaired equipment, tool and material storerooms, utility and utility rooms, as well as other premises, the number and purpose of which are determined in each case by the adopted technology and repair conditions.

The organization of the workplace of a master in the repair of household machines and appliances has its own characteristics.

To perform services for the repair of household machines and appliances, the service company uses the main and optional equipment(machines, mechanisms, installations), technological equipment, fixtures, tools and necessary equipment (setting tables, workbenches, racks, cabinets). When organizing jobs, service specialists must comply with the requirements of GOST for the creation of healthy and safe conditions labor of electricians (lighting, personal protective equipment, primary fire extinguishing equipment, etc.).

Locksmith operations in the repair of household machines and appliances are performed using locksmith, metal-cutting and measuring tools. The set of basic locksmith tools includes hammers, chisels, files, screwdrivers, wrenches, hand saws. Of the metal-cutting tools, drills, countersinks, reamers, taps, and dies are primarily used. Of the measuring instruments, when marking, processing and manufacturing workpieces and parts, calipers, micrometers, gauges, probes, calipers, and inside gauges are used. It is necessary to use diagnostic instruments and devices, stands for determining defects and malfunctions, etc. Repair has different degrees difficulties. The degree of complexity is determined by the need to disassemble and replace the main assembly units and parts, including the housing, electric motor, etc. For example, the repair of household radio-electronic equipment is divided into:

Block method of repair associated with the disassembly and replacement of the main elements of the equipment: a kinescope, a scanning line and other elements;

Repair carried out without disassembly and replacement of the main assembly units.

Repair and maintenance of household appliances is provided by repair technologies that are regulated by regulatory documents (technological maps, specifications, standards, rules and regulations). The customer may refuse the repair in full. In this case, the service organization guarantees the customer the compliance of the device parameters with the requirements of the standard only to the extent of the repair performed. The receiver makes a note about this in the accompanying document for the repair.

Service companies do not accept devices and equipment for repair (including after the expiration of their service life), if the customer refuses to eliminate malfunctions, the presence of which leads to a violation of safety requirements. In the event that faults related to its safety are discovered during the repair process, the service company must inform the customer about this and re-issue the order, taking into account the additional amount of work.

If the customer refuses additional work, a note is made in the acceptance document that the device or apparatus is unsuitable for operation, confirmed by the signatures of the customer and the contractor.

After the repair, the technical control service of the service organization or persons entrusted with control functions carry out quality control of the repaired devices.

Repaired appliances must function in all modes provided for by the regulatory documentation for a new household appliance of a particular type, the deviation of performance indicators of repaired household appliances during their service life should be no more than 20% compared to new ones.

appliances.

After the end of the service life, the indicators can be set in agreement with the customer when receiving household appliances for repair. Repaired devices must comply with safety requirements. Decrease in the safety indicators of repaired household appliances (within the limits established by the manufacturer) during the service life and after its expiration is not allowed. Household radio-electronic equipment that has been repaired must be sealed. When the equipment is put into operation, the accompanying document issued to the customer is marked with a mark confirming the technical acceptance and safety of the equipment. When issuing repaired radio-electronic equipment, household machines and appliances, an employee of a service company inspects the equipment and demonstrates its operation. Turning on, turning off or switching household radio-electronic equipment, household machines and appliances should be easy, smooth, without delays and repeated switching on. Radio-electronic equipment powered by the electrical network must be checked for the required value of electrical insulation resistance. After the repair, the customer is issued an accompanying document describing the repair and the repaired device. Service companies providing repair and maintenance services provide guarantees that the repaired device meets the requirements of the standard. When accepting household appliances and machines from repair, the customer has the right to check the compliance of the work performed with the list of defects specified in the order. On the accompanying document issued to the customer when the device is put into operation, a mark is placed confirming the technical acceptance and safety of the device. For repaired household machines and appliances, warranty periods are established:

6 months - when performing repair work related to the first group of complexity;

12 months - when performing repair work related to the second group of complexity.

For devices discontinued more than 10 years ago, the production of spare parts for which has been discontinued, the warranty period is set at least 3 months. Warranty periods are established for repaired radio-electronic equipment

When carrying out repairs in a hospital: for color TVs, VCRs and equipment top group difficulties

At least 3 months, for the rest of the equipment - at least 4 months;

When carrying out repairs at the place of operation: for color TVs, video recorders and equipment of the highest complexity group - at least 1 month, for other equipment - at least 2 months.

For new components installed during the repair of household appliances and machines, the warranty period must correspond to the warranty period established by the manufacturer (seller). The warranty period is calculated from the date of acceptance of the work (provision of services) - the issuance of repaired household appliances or radio-electronic equipment to the customer and is considered valid if the customer observes the operating rules.

During the warranty period established by the service organization, repeated repairs of household appliances and radio electronic equipment are carried out at the expense of the service organization, except for the payment by the customer of the cost of assembly units and parts that were not replaced during the previous repair.

When performing repeated repairs within the warranty period established by the service organization, the last warranty period is extended for the period from the date of contacting the service organization until the date of acceptance of the work (rendering of the service) - issuance of household appliances or radio electronic equipment.

The customer, at his request, is provided with services for the transportation of repaired household machines and appliances. Transportation of household machines and appliances is carried out in vertical position in closed transport, ensuring the safety of devices from mechanical damage and precipitation.

Storage of repaired and accepted for repair household appliances is carried out separately in a warehouse in dry rooms at a temperature of at least 5 ° C, without the presence of acid, alkali and other vapors in the atmosphere. harmful substances. The most convenient placement of devices on the racks. Storage conditions must exclude mechanical damage.

Jewelry repair ensures the restoration of the design and consumer properties jewelry.

Services for the repair and manufacture of jewelry are provided to consumers at stores selling jewelry or in jewelry workshops. The direct executor of repair and manufacturing services is the master jeweler.

When repairing or making jewelry, measuring, cutting tools, tools for bending and straightening (pliers, vise), tools for soldering, polishing and grinding, seaming and crimping metal are used. Acceptance of products for repair is carried out by an inspector who has a specialized education as a master jeweler. Upon acceptance, he examines the product, determines the materials of manufacture, defects and draws up a contract (receipt, other document) for the performance of work, which describes the work (with a sketch signed by the consumer) and precious

stones indicating the shape, size, weight, color, defects.

In the case of acceptance for repair or manufacture of jewelry made of precious metals belonging to the consumer, the contractor shall determine the sample of precious metals on touchstones using reagents manufactured by state inspections of assay supervision.

Jewelry made from precious metals must comply with the samples established in accordance with the legislation of the Russian Federation, and be branded in the prescribed manner with the state assay mark by state inspections of assay supervision.

In the manufacture of jewelry from precious metals, the performer must have a personal name, the imprint of which is placed on the manufactured products. Furniture manufacturing and repair provides consumers with the opportunity to restore old, used furniture or purchase custom-made furniture products. In addition, furniture workshops offer services for the manufacture and repair of baguette frames and wooden cornices, shields and solutions.

masking current heating appliances and others. Furniture in the process of use is subjected to mechanical and physico-chemical influences, which reduce the strength of the structure, causing the destruction of furniture elements (legs, legs, armrests), etc. Over time, dents appear on the front surfaces,

ly, bullying, flakes, cladding, decorative elements are destroyed, finishing coatings. In addition, the aesthetic properties of furniture are subject to obsolescence.

Ministry of Education and Science of the Republic of North Ossetia-Alania

State Budgetary Professional Educational Institution "Elkhotov Multidisciplinary College"

Considered

at a committee meeting

Protocol No. ____

Chairman

Z.P. Saralieva

"___" _________ 2016

Agreed

Director of PJSC

"Interregional

distribution

network company

North Caucasus

K.N. Zakaev

I approve

Director of GBPOU EMK

G.G. Kaitukov

"___" __________2016

PROFESSIONAL MODULE WORKING PROGRAM

PM.02PERFORMING SERVICE FOR HOUSEHOLD MACHINES AND APPLIANCES

The work program of the professional module was developed on the basis of the Federal State Educational Standard (hereinafter referred to as the Federal State Educational Standard) in the specialty 13.02.11 Technical operation and maintenance of electrical and electromechanical equipment (by industry) of the enlarged group 13.00.00 Electric and thermal power engineering

Organization - developer: GBPOU "Elkhotov multidisciplinary college"

Developer:

Dzagoev Ibragim Romanovich, teacher of special disciplines, Elkhotov Multidisciplinary College

Reviewers:

1. Saralieva Zarina Petrovna, methodologist of GBPOU "Elkhotov multidisciplinary college"

2. Kubalov Valeriy Alimbekovich, teacher of special disciplines of the Elkhotov Multidisciplinary College

Conclusion of the Expert Council No. ____________ dated "____" __________ 20___

room

CONTENT

page

PROFESSIONAL MODULE PROGRAM passport

4-5

1. results of mastering the PROFESSIONAL MODULE

STRUCTURE and content of the professional module

6

7-15

1. conditions for the implementation of the PROFESSIONAL MODULE program

16-18

1. Control and evaluation of the results of mastering the professional module (TYPE OF PROFESSIONAL ACTIVITY)

Total hours

(max. acc. load and

practices)

The amount of time allotted for the development of an interdisciplinary course (courses)

Practice

Mandatory classroom workload of a student

Independent work student

educational,

hours

Production

(according to the specialty profile) ,**

hours

Total,

hours

including laboratory work and practical exercises,

hours

hours

Total,

hours

including, course work(project),

hours

1

2

3

4

5

6

7

8

9

10

PC 2.1.

PC 2.2.

PC 2.3.

Section 1. Performing maintenance work on household machines and appliances

Internship, hours (if providedfinal (concentrated) practice)

Total:

3.2. The content of training in the professional module (PM.02)

Watch volume

Level of development

Section 1. Performing service maintenance of household machines and appliances

445

MDK.02.01 Typical technological processes maintenance of household machines and appliances

Topic1.1

Content

1

The main indicators of the reliability of in-house power supply systems

Installation, operation and repair of electrical equipment of residential buildings.

Turning on lamps, bells, televisions, radios and household electrical appliances(irons, boilers, kettles, heaters, kitchen electric stoves), household appliances with electric motors (washing machines, refrigerators with compressors, sewing machines, electric drills, electric motors and drives for meat grinders, juicers, etc.)

2

Maintenance and repair of household electrical equipment

Basic technical data of household electrical equipment.

The sequence of maintenance operations for starting and protective devices.

Electrical wiring repair.

Determination of malfunctions, their elimination and repair of household electrical equipment.

3

Practical lessons

79

1

Drawing up a diagram of a typical technological process for repairing a product

2

Troubleshooting electric kettle and repair

3

Iron troubleshooting and repair

4

Determination of malfunctions of the compression refrigerator and repair

5

Determination of malfunctions of an electric drill and repair

6

Determination of malfunctions of sewing machine drive motors, and repair

7

Microwave Troubleshooting and Repair

8

Determination of malfunctions of engines of various household appliances (juicers, meat grinders, etc.)

9

Studying the power regulator circuit for an electric stove

10

Studying the circuit of a universal power regulator

11

Studying the scheme of the infrared heater PIXAN

12

Studying the circuit of an electric convector with a thermostat

13

Studying the circuit of a fan heater

14

Studying the circuit of the KEV electric heater

15

Studying the scheme of the SFO-40 electric heater installation

16

Studying the scheme of the electric furnace EP40

17

Studying the scheme of the electric water heater EVBOT

18

Studying the circuit of the power regulator heater

19

Installation of a power electrical network

Seminar

Topic 1.2 Electrical networks of residential areas

1

Electrical networks of residential areas

General information. Power supply for residential and public buildings

Protection in power supply systems of residential and public buildings.

Electrical safety in residential and public buildings

Practical work

1.

Calculation of electrical loads of residential and public buildings

2

Calculation of short circuit currents

3

The study of protection schemes and automation of residential and public buildings.

Independent work while studyingSection 1. Performing service maintenance of household machines and appliances

Topic1.1 Installation, maintenance and repair of household electrical equipment

Electrical measuring instruments

Measurement of electrical quantities. Basic electrical quantities.

Types of means of electrical measurements. Varieties measuring instruments. Recommendations for the use of measuring instruments.

The concepts of repair, maintenance and diagnostics of household machines and appliances

Types, criteria and consequences of failure. Tasks and goals of diagnosis

Methods, operations, repair and maintenance processes

The structure of systems. Means of repair, maintenance and diagnostics. Indicators of the maintenance and repair system. Maintainability and manufacturability of maintenance and repair facilities. Diagnostic indicators.

Ability to diagnose.

Repair of electrical equipment in the house

Electrical faults. Precautions when doing housework. Typical malfunctions wiring. Short circuit. Devices protective shutdown. Repair of electrical wiring, repair of sockets, replacement of plugs, electrical fuses, selection of extension cords and adapters.

Power Supply Repair

Concepts and definitions. Unregulated power supplies

Full wave rectifier. Bridge rectifier. Filter schemes. capacitive filters. R C filters. L C-filters.

Voltage doubling circuits. Half-wave voltage doubling circuits. Full wave voltage doubler.

Service maintenance of power supplies. Safety measures at work.

Fixture repair.

Fluorescent Lamp. Advantages of fluorescent lamps. Disadvantages of fluorescent lamps Operating principle. Characteristics of conventional fluorescent lamps. Energy saving fluorescent lamps (E/L)

Compact fluorescent lamps. Control gear (PRA). Repair of lamps with fluorescent lamps and electromagnetic ballasts. Repair of lamps with gas discharge lamps

Operation features discharge lamps. Connection diagrams for gas discharge lamps 0S KAM.

LED lamps. LED device. Operating principle

Characteristics of LEDs. LED lights. Operating modes

LED lamp. LED lamp. Organic light emitting diodes as lamps. Safety measures at work.

Service maintenanceuhelectric convectors.

Types and ratings of electric convectors

Safety measures at work.

Service maintenancekitchenelectrical engineering.

Repair of mixers and blenders, electric coffee grinders, juicers.

Electric fryers. Work Safety Measures

Service maintenanceelectric kettles.

Electric kettle device. Electric circuit. Replacing a defective heater. The design and features of a modern imported teapot.

Design circuit breaker

Electric kettle repair.

Service maintenanceelectric ovens.

Work Safety Measures

Educational practice. Practice for service maintenance of household electrical equipment.

Types of jobs:

Diagnostic parameters and signs. Types and methods of diagnosis. Health monitoring.

Finding a place of failure. Forecasting the technical condition. Diagnostic algorithms. Methodology

diagnosis.

Repairelectrical measuring instruments.

Basic electrical quantities. Measurement of electrical quantities. Types of means of electrical measurements. Varieties of measuring instruments. Use of measuring instruments. Digital measuring instruments. The use of universal measuring instruments. Power sources and voltage stabilizers. Signal generators of complex shapes. Working with a frequency counter. Oscilloscopes. Working with an oscilloscope. Multimeters. Working with a multimeter. Safety measures at work.

Lighting repair

Lamps. Troubleshooting and repair lighting fixtures. Wiring installation.

Service maintenanceelectric fireplaces.

Determination of faults. Repair and adjustment.Troubleshooting and repair. Safety measures at work.

Service maintenancedrying appliances

Repair of mixers and blenders

Determination of faults. Repair and adjustment. Troubleshooting and repair. Safety measures at work.

Repair of electric juicer and electric rice cooker.

Determination of faults. Repair and adjustment. Troubleshooting and repair. Safety measures at work.

Service maintenanceelectric toasters.

Determination of faults. Repair and adjustment. Troubleshooting and repair. Safety measures at work.

Service maintenancemicrowave ovens.

Determination of faults. Repair and adjustment. Troubleshooting and repair. Safety measures at work.

Service maintenance electric kettle.

Determination of faults. Repair and adjustment. Troubleshooting and repair. Safety measures at work.

Service maintenance electric meat grinders.

Determination of faults. Repair and adjustment. Troubleshooting and repair. Safety measures at work.

Service maintenance electric ovens.

Determination of faults. Repair and adjustment. Troubleshooting and repair. Safety measures at work.

Industrial practice (according to the specialty profile)

Types of jobs:

The concept of repair, maintenance and diagnostics of household machines and appliances

Technical condition. Types, criteria and consequences of failure. Repair, restoration and maintenance. Tasks and goals of diagnosis. Methods, operations, repair and maintenance processes. Maintenance safety.

Systems for repair, maintenance and diagnostics of household machines and appliances

The structure of systems. Means of repair, maintenance and diagnostics. Indicators of the maintenance and repair system. Maintainability and manufacturability of maintenance and repair facilities. Diagnostic indicators. Ability to diagnose

Diagnostic methods for restoring the performance of household machines and appliances

Diagnostic parameters and signs. Types and methods of diagnosis. Health monitoring

Finding a place of failure. Forecasting the technical condition. Diagnostic algorithms. Diagnosis technique

Troubleshooting electrical equipment

Troubleshooting in the repair of electrical equipment. Typical causes of failures. Signs of detected faults. Private methods of troubleshooting. The main reasons for the failure of the elements. Further search for a faulty element. Analysis of the causes of detected faults. The simplest ways to check the health of electrical and radio elements. Checking wire and non-wire resistors. Checking capacitors of all types. Checking inductors. Checking power transformers, low frequency transformers and chokes

The simplest check of the health of semiconductor diodes. A simple test of transistors.

Electrical Troubleshooting Sites

Electrical measuring instruments

Measurement of electrical quantities. Basic electrical quantities. Types of means of electrical measurements. Varieties of measuring instruments. Recommendations for the use of measuring instruments. Digital measuring instruments. Recommendations for measurements with universal measuring instruments. Resistance measurement. Measurement of constant voltages. DC current measurement. AC voltage measurement. Component testing using universal measuring instruments. Power supplies and voltage stabilizers. Complex shape signal generators. Measurement of frequency characteristics. Frequency counters. Technical characteristics of frequency meters. Oscilloscopes. Operating principle. Dual beam oscilloscope. Digital storage oscilloscope. Types of modern electrical measuring instruments. Multimeters. Signal generators

Power Supply Repair

Unstabilized power supplies. Full wave rectifier. Bridge rectifier. Voltage doubling circuits. Half-wave voltage doubling circuits. Full wave voltage doubler. Power supplies with sequential stabilization. The simplest voltage regulator. serial stabilizer. Stabilizer on a zener diode and a transistor. Transistor stabilizer with Darlington pair. Transistor feedback stabilizer. Feedback stabilizer on the operational amplifier. Current limiters. Load protection circuit. Varieties of voltage stabilizers on the IC. Power supplies with parallel stabilization. High current voltage stabilizers. Troubleshooting methods. Visual inspection. Voltage measurement. Current measurement. Replacement of components. Electric juicer "Juice". Switching power supplies. Structural scheme. Pulse width modulation. Advantages and disadvantages. Circuitry of single-switch converters. Malfunctions of switching power supplies. Selecting an uninterruptible power supply.

Planning for equipment power protection. UPS lifespan. Typical malfunctions of uninterruptible power supplies

Repairelectrical wiring

Electrical faults. Precautions when doing housework. Common electrical faults. Short circuit. Residual current devices. Electrical wiring repair. Calculation of wiring power. Wiring principles. Choice of brand and section of wire and cable. Design of popular wires and cables. Socket repair. Socket markings. Faults in sockets. Fork replacement. Electrical fuses. Extension cords and adapters.

Lighting repair

Lamps and their types. Varieties of lamps. Repair of lamps with incandescent lamps. Advantages and disadvantages of incandescent lamps. The device and operation of incandescent lamps. Designations of incandescent lamps. Arrangement of lamps with incandescent lamps. Installation of lamps. Installation and connection of chandeliers. Malfunctions of lamps with incandescent lamps. Attaching the cord to the chuck. Lighting safety. Replacing or repairing a burnt out lamp. Repair of lamps with halogen incandescent lamps. Connection of halogen lamps. Repair of luminaires with fluorescent lamps. Control gear (PRA). Repair of luminaires with fluorescent lamps and electromagnetic control gear. Repair of lamps with gas discharge lamps

Inclusion. Re-ignition. Connection diagrams for gas discharge lamps 0S KAM. LED lamps. Characteristics of LEDs. LED lights. working modes. LED lamp. LED lamp. Organic light emitting diodes as lamps.

Electric heaters

heating elements open type. Electric fireplaces with open type heaters. Repair of open coil electric heaters. heating elements closed type. Heating elements of the closed type are leaky. Tubular heating elements closed type sealed

infrared heaters. Adjustable electric heaters. Electric convectors

Types and ratings of electric convectors. Conventions. Electric convector "Onyx EVUA-1.25/220". Electric radiators. Types and ratings of electric radiators. Conventions

Dry electric radiator "Rovno ERSB-0.75/220". Electric radiators with intermediate coolant

Oil sectional electric radiator "Florida Maua". Drying appliances

Kitchen repairelectrical engineering

Repair of mixers and blenders. Composition and types of mixers. Repair of the electric mixer "Armavir" MN-202

Electric mixer "Armavir" MN-304. Repair electric coffee grinder. The composition and types of electric coffee grinders. electric coffee grinder impact action EKMU-50. Electric coffee grinder of burr action EKMZH-125. Electric juicer repair. The composition and types of juicers. Electric juicer "Juice". Electric rice cooker. Electric coffee maker. Classification and principle of action. Electric coffee maker EKP 1.2 / 0.8-220. Electric waffle irons and electric fryers. Electric waffle iron VED-1. Electric waffle iron "Slastena" EV-1,25/220. Electric fryers. Electric fryer EF-1/1.25. Electric grills. Electric grill of the closed type EGZ-1,2/220. Aerogrill "Sopvectio p Ov ep S T1140". Electric toasters and electric roasters. Automatic toaster. Electric meat grinders. Electric kettle repair Electric kettle device. Replacing a defective heater. The design and features of a modern imported teapot. Choice of electric kettle. Circuit breaker design. Electric kettle repair. Dishwasher repair. Repair of microwave ovens. The main malfunctions associated with the operation of the door. Magnetron. Transformer related faults. Control units. Microcontroller. Thermal relay. Disassembly of the microwave oven. Replacement of the micromotor of rotation of the pallet. Electrical circuits microwave ovens. Malfunctions of microwave ovens with electromechanical control. Malfunctions of microwave ovens with an electronic control unit. Safety precautions when working with microwave oven.

Repair of home electrical equipment

Vacuum cleaner repair. Electrobrush-vacuum cleaner "Veterok-4". Protecting the motor of a mobile vacuum cleaner. Typical malfunctions. Vacuum cleaner repair: electrical equipment malfunctions. Vacuum cleaner repair: mechanical failures. Recommendations for the care of vacuum cleaners. Electric ironing machines. Maintenance. Hair clippers and trimmers. Electric machine IP-35. Electric hair dryers

Purpose and characteristics. Hairdryer "Mikma-400". Vibromassage electrical appliances. Purpose and characteristics. Vibromassage device VMP-1. Vibromassage device EMA-2M. Electric Shaver Repair

The main parameters of electric shavers. Electric shaver with pulse motor. Devices and stations for determining the defects of electric shavers.

Refrigerator repair

Electrical equipment of refrigerators. The main groups of electrical equipment of refrigerators. Electric motors. Through-hole sealed contacts. Lighting equipment. Fans. Automation devices. Semi appliance automatic control thawing. Evaporator defrosting process control device. Automatic defrost control device. Device for evaporation of melt water. Starting relays. Mechanical equipment of refrigerators. Frame. Internal cabinets refrigerators

Doors. Thermal insulation. Door lock. Sector shutter door. Magnetic door lock. Door seals. Refrigeration units of domestic refrigerators. The composition and placement of the refrigeration unit. Compressors. Starting relays. Compressor device. Compressor valve operation. Crank-rocker type compressor with internal suspension. electric motor

Refrigeration condenser. Adsorbents. Drying cartridge. Humidity indicator. Oil dryers. Operation of the refrigeration unit. Refrigerants. Repair and operation of domestic refrigerator. Refrigerator device. Troubleshooting compressor refrigerators without the "N0 Frost" system. Repair of imported refrigerator. "N0 Frost" system. Finding and fixing refrigerant leaks in modern refrigerators. Circuitry.

Repair of washing machines

Purpose, classification, modes of operation. Differences between automatic and semi-automatic washing machines. Connecting an automatic washing machine. Dismantling of transport parts. Connection to communications. Washing machine feet adjustment. Electrical connection. Repair of domestic washing machines. Repair methods for washing machines such as CMP, SMP activator type, washer-dryers. Main mechanical components SMA. SMA electrical equipment. Control system for automatic washing machines. Repair of automatic washing machines

Symbols on electrical and wiring diagrams foreign automatic washing machines

Repair of satellite equipment

Organization of repair. Troubleshooting. Required tools and fixtures. Loading software. Basic information. Ways to download "firmware". Self-manufacturing"firmware" cable. Manufacturing JT AG-adapter. Repair of built-in DR E module and external decoder (dongle).

Preparation of reporting documentation for the maintenance of household machines and appliances

Total:

4. conditions for the implementation of the PROFESSIONAL MODULE program

4.1. Minimum Logistics Requirements

Implementation of the module program presupposes the presence of a study room for industrial and household electrical equipment; workshops for electrical installation and fitter-mechanical; laboratories Industrial and household electrical equipment, electrical machines, Electric drive, electrical apparatus.

Equipment of the study room and workplaces of the cabinet Industrial and household electrical equipment :

a set of tools and devices;

set of parts;

a set of technological documentation forms;

a set of educational and methodological documentation;

visual aids (tablets, posters)

electrical measuring instruments.

Technical means of education :

computers;

Printer;

scanner;

modem (satellite system);

projector;

plotter;

general and professional software.

Equipment of workshops and workplaces of workshops:

1. Locksmith and mechanical:

equipment;

tool kits;

fixtures;

blanks.

2. Wiring

jobs by the number of students;

wiring diagrams;

tool kits;

blanks.

Equipment of laboratories and workplaces of laboratories:

1. Industrial and household electrical equipment:

laboratory stands;

a set of posters;

2. Electrical machines:

laboratory stands;

a set of power tools, devices;

a set of posters;

a set of educational and methodical documentation.

3. Electric drive:

laboratory stands;

a set of power tools, devices;

a set of posters;

a set of educational and methodical documentation.

4. Electrical apparatus:

laboratory stands;

a set of power tools, devices;

a set of posters;

a set of educational and methodical documentation.

4.2. Information Support learning

Main sources:

textbooks

Kireeva E.A., Tsyruk S.A. Power supply of residential and public buildings - M .: NTF "Energoprogress", 2007

Installation, maintenance and repair of industrial and household electrical equipment ( practical guide for electrician) – 2008

Romanovich Zh.A., Skryabin V.A., Fandeev V.P., Tsypin B.V.Diagnosis, repair and maintenance of control systems of household machines and appliances:. - M.: Publishing and Trade Corporation "Dashkov and K", 2013.

Partala O. N. Troubleshooting and repair of household electrical appliances. - St. Petersburg: Science and Technology, 2010

Koryakin S. L. Brief reference book of a home electrician - 2006

Butyrsky V.I. Adjustment of electrical equipment - 2010.

Polyakov Yu. N. Electrician's Handbook - 2010

Additional sources:

Rules for the installation of electrical installations (PUE) -2008

Intersectoral rules on labor protection (safety rules) for the operation of electrical installations (MPOT) -2008

Rules for the technical operation of consumer electrical installations (PTE) -2008

4.3. General requirements for the organization of the educational process

A prerequisite for admission to industrial practice (according to the profile of the specialty) within the framework of the professional module "Maintenance of household machines and appliances is the developmenteducational practice for service maintenance of household electrical equipment to obtain primary professional skills and abilities.

4.4. Staffing educational process

Requirements for the qualification of pedagogical (engineering and pedagogical) personnel providing training in an interdisciplinary course (courses):higher vocational education in the specialty "Technical operation and maintenance of electrical and electromechanical equipment."

Requirements for the qualification of teaching staff who manage the practice

Engineering and teaching staff: graduates - teachers of interdisciplinary courses, as well as general professional discipline:"Electrical and Electronics"

Masters: availability of 5–6 qualification category with mandatory internshipin specialized organizations at least once every 3 years. Experience in organizations of the relevant professional field is mandatory.

5. Control and evaluation of the results of mastering the professional module (type of professional activity)

results

(mastered professional competencies)

PC 1.1. Organize and carry out operation, maintenance and repair work household appliances.

Ability to organize and carry out work on the operation, maintenance and repair of household appliances

Current control in the form:

Protection of laboratory and practical classes;

Control works on the topics of the MDC.

Comprehensive module exam.

PC 1.2. Carry out diagnostics and control of the technical condition of household appliances.

Knowledge of determining the technical condition of household appliances and carry out diagnostics and repairs

PC 1.3. Predict failures, determine resources, detect defects in electrical appliances.

Skills for predicting failures and determining resources and detecting defects in electrical household appliances

Forms and methods of monitoring and evaluating learning outcomes should allow students to check not only the formation of professional competencies, but also the development of general competencies and the skills that provide them.

results

(mastered general competencies)

Main indicators for evaluating the result

Forms and methods of control and evaluation

OK 1. Understand the essence and social significance of your future profession, show a steady interest in it

demonstration of interest in the future profession

Interpretation of the results of observations of the student's activities in the process of mastering educational program

OK 2. Organize your own activities, choose standard methods and methods for performing professional tasks, evaluate their effectiveness and quality

selection and application of methods and methods for solving professional problems in the field of control and diagnostics, maintenance and repair of household electrical equipment;

evaluation of efficiency and quality of implementation.

OK 3. Make decisions in standard and non-standard situations and be responsible for them

solution of standard and non-standardprofessional tasks in the field of control and diagnostics, maintenance and repair of household electrical equipment;

OK 4. Search, analyze and evaluate the information necessary for setting and solving professional problems, professional and personal development.

efficient searchnecessary information;

usage various sources, including electronic

OK 5. Use information and communication technologies to improve professional activities.

Work on PC

OK 6. Work in a team and team, ensure its cohesion, communicate effectively with colleagues, management, consumers.

interaction with students, teachers and masters in the course of training

OK 7. Take responsibility for the work of team members (subordinates), for the result of completing tasks

introspection and correction of the results of their own work

OK 8. Independently determine the tasks of professional and personal development, engage in self-education, consciously plan advanced training.

organization of self-study during the study of a professional module

OK 9. Navigate in the face of frequent technology changes in professional activities

analysis of innovations in the fielddevelopment of technological processes for the manufacture of machine parts;

To characterize the level of development educational material the following notation is used:

1 - introductory (recognition of previously studied objects, properties);

2 - reproductive (performance of activities according to a model, instructions or under guidance);

3 - productive (planning and independent execution activities, problem solving)

Laboratory work No. 8 "Procedure for organizing service maintenance of electrical machines"

The purpose of the work: To study the procedure for organizing the maintenance of electrical machines.

Progress:

Service center -- an organization engaged in the provision of service support and maintenance of machinery, equipment and other products. The activities of service centers include pre-sales, warranty and after-sales repairs.

Car service in a car dealership guarantees for the owner vehicle protection from unforeseen situations, as well as the implementation of certain measures to keep the car in working order. To exclude or at least prevent significant breakdowns, it is necessary to periodically contact the service center for diagnostics. As a result, the timely elimination of minor breakdowns and damage. Typically, car maintenance includes checking primary assemblies and assemblies, changing oil and antifreeze, and if problems are found, replacing brake pads, belts, and spark plugs.

One of the decisive factors in a consumer's choice of product is how much support the supplier promises after the sale of that product. This factor is especially important when buying electrical household appliances, appliances and electronics, building materials, cars, etc., that is, in those areas where a breakdown or factory defect means that the product cannot be used for its intended purpose or prevents it.

When buying a product, the warranty period for the product and its service life are established. During the warranty period, the buyer is entitled to free repair of the goods or (in special occasions -- see below) to replace it. After the expiration of the warranty period, the repair of equipment is carried out at the expense of the consumer. After the expiration of the service life of the product, the manufacturer has the right to refuse the consumer to repair this product.

The activities of service centers are regulated at the legislative level, in accordance with the laws of the country in which the service is provided. According to the Law on Consumer Rights of the Russian Federation, information about the product in without fail must contain the product warranty period, if any.

“Consumer rights in case of defects in the product”:

The consumer, in case of detection of defects in the goods, if they were not specified by the seller, at his choice has the right to:

demand a replacement for a product of the same brand (the same model and (or) article);

demand a replacement for the same product of a different brand (model, article) with a corresponding recalculation of the purchase price;

demand a commensurate reduction in the purchase price;

demand immediate gratuitous elimination of product defects or reimbursement of expenses for their correction by the consumer or a third party;

refuse to fulfill the contract of sale and demand the return of the amount paid for the goods. At the request of the seller and at his expense, the consumer must return the goods with defects.

At the same time, the consumer has the right to demand also full compensation for losses caused to him as a result of the sale of goods of inadequate quality. Losses are reimbursed within the time limits established by this Law to meet the relevant requirements of the consumer.

The new version of the Law mentions the period during which the consumer has the right to make a claim for the replacement of goods and for a refund if defects are found in the goods -- 15 days. If the color, size, shape of the product does not suit the consumer, then the product cannot be exchanged! After the expiry of the 15 day period specified requirements subject to one of the following cases:

discovery of a significant defect of the goods;

violation of the deadlines established by this Law for the elimination of defects in goods;

if, in case of repeated failure, the customer was unable to use his product for more than 30 days due to being under repair

Approved

Decree of the State Standard of Russia

Introduction date 01.01.97

STATE STANDARD OF THE RUSSIAN FEDERATION

HOUSEHOLD SERVICES

REPAIR AND MAINTENANCE

ELECTRIC HOUSEHOLD MACHINES AND APPLIANCES

GENERAL SPECIFICATIONS

GOST 50938-96

SERVICES.REPAIR AND MAINTENANCE OF HOUSEHOLD ELECTRIC

APPLIANCES AND EQUIPMENT. GENERAL SPECIFICATIONS

Foreword

1. Designed and introduced technical committee according to the standardization of TC 346 "Consumer services for the population".

2. Approved and put into effect by the Decree of the State Standard of Russia of August 22, 1996.

3. Introduced for the first time.

1 area of ​​use

This standard applies to the repair and maintenance of electrical household machines and appliances (hereinafter referred to as the repair of electrical appliances), the maintainability of which is established by the manufacturer in accordance with GOST 23660.

On the basis of this standard, regulatory documents for the repair and maintenance of electrical appliances of a particular type should be developed.

This standard uses references to the following standards:

GOST 12.2.007.1-75 SSBT. Rotating electrical machines. Safety requirements;

GOST 12.2.013.0-91 SSBT. Machines manual electric. General safety requirements and test methods;

GOST 16264.0-85 Electric machines of low power. Engines. General technical conditions;

GOST 16264.1-85 Asynchronous motors. General technical conditions;

GOST 17677-82 Lamps. General technical conditions;

GOST 23660-79 Maintenance and repair system for equipment. Ensuring maintainability in product development;

GOST 26104-89 Electronic measuring instruments. Technical requirements in terms of security. Test methods;

GOST 27570.0-87 Safety of household and similar electrical appliances. General requirements and test methods;

GOST R 50377-92 Equipment safety information technology, including electrical office equipment;

OK002-93 All-Russian classifier of public services.

3. Definitions

For the purposes of this International Standard, the following terms apply with their respective definitions:

3.1. Repair - a set of operations to restore the performance of an electrical appliance.

3.2. Maintenance - a set of operations or an operation to maintain the operability or serviceability of an electrical appliance when it is used for its intended purpose.

3.3. Pre-trade repair - a set of measures to restore the functionality of electrical appliances at the seller.

3.4. Repair during the warranty period established by the manufacturer or the enterprise performing its functions (hereinafter referred to as the manufacturer) is the repair of an electrical appliance within the period established by the manufacturer, during which the repair company fulfills warranty obligations.

3.5. Restorative repair - repair of an electrical appliance that has lost its functionality through no fault of the consumer during the warranty period established by the manufacturer and returned to the seller.

3.6. Repair during the service life - repair of an electrical appliance during the service life specified in the regulatory documentation for the product, or, if it is not specified, within 10 years from the start of operation of the appliance.

3.7. Repair after the expiration of the specified service life - repair of an electrical appliance after the expiration of the service life specified in normative documentation, or, if it is not installed, then after 10 years from the date of sale of the product.

3.8. Accompanying document - a document issued to the customer upon receipt of an electrical appliance from repair.

3.9. Operational indicators - indicators that provide functional and consumer parameters of an electrical appliance.

3.10. Master - executor of the service - a specialist who has vocational training and performing a set of operations to restore the operability of an electrical appliance.

4. Classification of electrical appliance repair

4.1. By the time of the repair is divided into:

Pre-sale repair;

Repair during the warranty period of operation established by the manufacturer;

Repair during the warranty period established by the repair company;

Restorative repair;

Repair during the service life;

Repair after the end of the product's service life.

4.2. According to the place of repair, they are divided into:

Repair in the hospital;

Repair at the place of operation of the electrical appliance.

4.3. According to the complexity of the repair is divided into:

Repairs related to the disassembly and replacement of the main assembly units and parts, including the housing, electric motor, etc.;

Repair carried out without disassembly and replacement of the main assembly units.

5. General technical requirements

5.1. Repair of electrical appliances should be carried out in accordance with the current regulatory and technological documents approved in the prescribed manner.

5.2. Pre-sales repairs and repairs during the warranty period established by the manufacturer are carried out according to the manufacturer's documentation for new products.

5.3. Restorative repair, repair during the service life of an electrical appliance and after its expiration should be regulated in the regulatory documents for the repair and maintenance of electrical appliances of a particular type.

5.4. Electrical appliances that have undergone repair and maintenance must comply with the requirements of this standard and regulatory documentation for the repair and maintenance of a particular type of product.

5.5. Regulatory documents for the repair of electrical appliances are international and state standards, industry standards, specifications.

Note. Along with regulatory documents, technological and design documents, repair instructions can be used.

Regulatory and technological documents used in the repair of electrical appliances must contain operational requirements and safety requirements for the life and health of citizens, the safety of their property during the operation of electrical appliances.

6. Safety requirements

6.1. Safety requirements for the organization of repairs

6.1.1. Mandatory conditions for ensuring safety should be:

Documented professional skill level of the performer and his knowledge of safety requirements;

Availability normative documents for repairs, safety instructions duly approved, and state standards labor safety (SSBT);

Availability of appropriate certified technological equipment;

Availability of verified or calibrated measuring instruments, certified test instruments that ensure metrological accuracy, measurement reliability, test reliability.

6.1.2. Replaced parts and assembly units, components, as well as industrial auxiliary materials must comply with the requirements of the current regulatory documentation for a particular type of electrical appliance being repaired, must be environmentally friendly, ensure electrical safety, fire safety and heat resistance.

By agreement with the customer, after the expiration of the warranty period of the manufacturer of the electrical appliance, it is allowed to use other materials, parts and assembly units that, in their parameters, correspond to those to be replaced and do not reduce the above requirements.

When repairing electrical appliances, in agreement with the customer, both new parts and assembly units, and restored ones, including electric motors and compressors, can be used in accordance with the current regulatory documentation.

6.1.3. Parts of electrical appliances in contact with food, as well as heat-insulating materials, are selected from among those approved for use by supervisory authorities.

6.1.4. When repairing electrical appliances, you should be guided by current rules safety and industrial sanitation for enterprises for the repair of electrical household machines and appliances.

6.1.5. The components used for repair, included in the list of products subject to mandatory certification, must be certified.

6.1.6. The repair company should not accept electrical appliances for repair if the customer refuses to eliminate malfunctions, the presence of which leads to a violation of safety requirements.

In case of detection of malfunctions in the process of repairing an electrical appliance related to its safety, the repair company must inform the customer about this and re-issue the order, taking into account the additional amount of work. If the customer refuses additional work in the acceptance document, the mark "electrical appliance is not suitable for operation" is made, confirmed by the signatures of the contractor and the customer.

6.1.7. Workplace the master - performer of the service during the repair in the hospital must be equipped with equipment and tools in accordance with the requirements of the technology.

6.1.8. The master - performer of the service performing repairs at home must have a set of tools in accordance with the current documentation.

6.1.9. The list of services for the repair and maintenance of electrical appliances subject to mandatory certification is provided for by OK 002.

6.2. Safety requirements for repaired electrical appliances

6.2.1. Indicators of repaired electrical appliances are divided into:

Ensuring the safety of the operation of electrical appliances;

Operational indicators.

6.2.1.1. The main indicators that ensure the safety of the electrical appliance at the customer, taking into account the requirements of GOST 12.2.007.1, GOST 12.2.013.0, GOST 16264.0, GOST 16264.1, GOST 17677, GOST 26104, GOST 27570.0, GOST R 50377, include:

Protection against electric shock under normal operating conditions;

Starting the device with an electric drive;

Power consumption;

Insulation resistance under normal operating conditions;

The state of the structure;

Internal wiring.

It is not allowed to reduce the safety indicators of repaired electrical appliances (within the limits established by the manufacturer) during the service life and after it.

6.2.1.2. Performance indicators must be indicated in the regulatory documentation for a repaired electrical appliance of a particular type.

It is allowed to deviate the values ​​of operational indicators of repaired electrical appliances during their service life in comparison with those installed on new ones by no more than 20%.

After the service life, the indicators can be set in agreement with the customer when receiving the electrical appliance for repair.

6.2.2. Repaired electrical appliances must function in all modes provided for by the regulatory documentation for a new electrical appliance of a particular type.

6.2.3. Repaired electrical appliances must comply with the safety requirements for their operation, established in the regulatory documentation for a new electrical appliance of a particular type.

6.2.3.1. Protection against electric shock should include:

Providing adequate protection against accidental contact with live parts, and for class 2 appliances, in addition, with basic insulation or metal parts separated from live parts only by basic insulation;

No voltage on plug pins from charged capacitors.

6.2.3.2. Electrical appliances with an electric drive should be started at all possible supply voltages from 0.85 to 1.06 of the nominal voltage value.

6.2.3.3. The power consumption of the electrical appliance at the rated voltage of the power supply network should not exceed 20% of the values ​​specified in the manufacturer's regulatory documentation.

6.2.3.4. Insulation resistance of an electrical appliance in a cold state between current-carrying parts and the case at equal temperatures production premises and the surface of the appliance must not be lower than the value specified by the manufacturer.

6.2.3.5. The state of construction and internal wiring of electrical appliances must meet the following requirements:

Protective protective devices, where they are provided for by the design, must be serviceable and exclude mechanical danger during the operation of the electrical appliance;

Current-carrying parts of the electrical appliance must be isolated from metal non-current-carrying parts and protected from accidental contact with them;

Wiring must comply with the circuit diagram of a particular type of electrical appliance and ensure reliable electrical contact and mechanical strength of the connections;

Soldering must be clean, soldering points must be painted over and insulated;

Turning on, turning off the electrical appliance should be carried out smoothly, without jerks, jamming, repeated switching on;

The interference suppression device, where it is provided for by the design, must be in good working order and correspond to the type of electrical appliance;

The alarm, where it is provided for by the design, must turn on and off simultaneously with turning on and off the electrical appliance or heating element;

Temperature controllers, defrost and automation devices must ensure reliable maintenance of the specified operating modes of the electrical appliance in accordance with the regulatory documentation for a particular type of electrical appliance;

- thermal switches must ensure that the appliance is turned off in case of violation of the operating mode or its improper operation;

All fastening assembly units and parts must be tightened evenly, without distortions and ensure reliable fastening. All rotating parts must be adjusted, touching the rotating parts with the fixed ones is not allowed;

Rubber seals and locks must provide a secure seal and closure.

6.2.4. The sound level at a distance of 1 m from the electrical appliance (during the service life) should not exceed the values ​​\u200b\u200bspecified in the manufacturer's regulatory documentation by more than 10%, and after service - as agreed with the customer.

6.2.5. The accompanying document issued to the customer when the electrical appliance is put into operation must have a mark confirming the technical acceptance and safety of the electrical appliance.

7. Acceptance rules

7.1. Repaired electrical appliances should be subject to acceptance control.

7.2. Acceptance control of repaired electrical appliances is carried out by the technical control service repair company or persons entrusted with control functions.

7.3. During acceptance control, the compliance of the repaired electrical appliances with the requirements of the current regulatory documentation is checked, taking into account the list of works agreed with the customer.

7.4. If, during the acceptance control, a discrepancy is established for at least one parameter specified in the regulatory documentation, or an item agreed with the customer, then such electrical appliances must be returned to eliminate the discrepancy (malfunction).

8. Control methods

Repaired electrical appliances should be subjected to control for compliance with the requirements of regulatory documentation using non-destructive methods and measuring instruments that provide the necessary accuracy and reliability of measurements, as well as external inspection and testing in operation.

9. Transportation and storage

9.1. Transportation of repaired electrical appliances is carried out by the repair company or the customer by covered transport of all types under the conditions of protecting electrical appliances from mechanical damage and precipitation (transportation during the warranty period is carried out at the expense of the repair company free of charge).

9.2. Repaired electrical appliances should be stored in dry rooms at a temperature not lower than plus 5 degrees. C. In the atmosphere of the room, the presence of vapors of acids, alkalis and other harmful substances is not allowed.

Storage conditions must exclude mechanical damage. It is forbidden to install one electrical appliance on top of another. Repaired electrical appliances should be stored separately from those accepted for repair.

10. Guarantees

10.1. The repair company must guarantee the compliance of the repaired electrical appliance with the requirements of the regulatory documentation for a particular type of product.

In the event that the customer refuses to repair in full, proposed by the company, the latter must guarantee that the parameters of the electrical appliance meet the requirements of regulatory documentation only to the extent of the repair performed, which should be noted in the accompanying document for the repair.

10.2. The repair company establishes the warranty period in the regulatory documentation for a particular type of electrical appliance. The warranty period must be at least 6 months.

For electrical appliances discontinued more than 10 years ago, the production of spare parts for which has been discontinued, the warranty period must be at least 3 months.

10.3. For new components installed during the repair of electrical appliances, the warranty period must correspond to the warranty period established by the manufacturer.

10.4. The warranty period for a repaired electrical appliance is calculated from the date of delivery of the repaired electrical appliance to the customer and is considered valid if the customer observes the rules for operating the electrical appliance.

10.5. During the warranty period established by the repair company, the repeated repair of the electrical appliance is carried out at the expense of the repair company, except for the payment by the customer of the cost of assembly units and parts that were not replaced during the previous repair.

10.6. If it is necessary to perform repeated repairs within the warranty period established by the repair company, the latter is extended for the period from the date of contacting the repair company until the date of acceptance of the work (rendering of the service) - issuance of the electrical appliance.

Department "Service of household machines and appliances"

V.V. Gladkevich

V.A. Zaitsev

Technological
service industry systems

Program, methodological guide to the course

design for students of the specialty 060800

"Economics and management in service enterprises"

St. Petersburg

Approved at the meeting of the department "Service of household machines and appliances", protocol No. 7 dated 08.06.2001

Approved by the Methodological Council of the Faculty of Technical Systems Service, protocol No. 11 dated 12.06.2001.

Technological systems of the service sector. Program, methodological guide to course design for students of the specialty 060800 "Economics and Management at Service Enterprises". - St. Petersburg: Publishing House of the IIG "AKTIB", 2001. - 35 p.

Compiled by: Cand. those. Sciences, Assoc. V.V. Gladkevich;

cand. those. Sciences, Assoc. V.A. Zaitsev

Reviewer: Cand. those. sciences, prof. Department "Technical systems of the RKK"

VIKU them. A.F. Mozhaisky E.M. Roslyakov

ÓInformation and publishing group "AKtiB"

Ó St. Petersburg state institute service and economy
2001

General guidelines

When studying the discipline "Technological systems of the service sector", students, guided by the course program, independently work on textbooks and teaching aids and complete course projects.

It is advisable to make a summary after studying each topic and reinforce the theoretical material with the implementation of a course project.

2. Goals and objectives of the discipline

2.1. Objectives of teaching discipline

The purpose of teaching the discipline is to provide students of the Faculty of Economics, Management and Finance with knowledge in the field of industry production and service, a general understanding of the technical and technological systems of service enterprises, practical skills in analysis, selection and valuation engineering equipment with a feasibility study of the parameters, paying attention to the features of the rules and safety measures during operation.

2.2. The tasks of teaching discipline

As a result of studying the discipline, the STUDENT should know:

Characteristics of the habitat and features of the operation of technological and technical systems;

Technique and engineering equipment of industry enterprises;

Types of energy carriers (power supply, water supply, heat supply, gas supply, etc.);

Rules and safety measures during operation.

The STUDENT should be able to:

Focus on the market of machinery and engineering equipment of the industry;

Analyze, select and calculate some elements of engineering equipment of technical and technological systems;

Technically competently operate the equipment.

The STUDENT should be familiar with:

With the prospects for the development of engineering equipment for technological and technical systems of enterprises in the industry.

3. Thematic content of the discipline

Introduction. Scientific and technological progress, factors and main directions of equipment development. Multilevel scheme of goals and objectives in engineering and technology. Waste-free energy and resource-saving technologies.

Topic 1. Technological and technical systems of the industry

Composition of technological and technical systems of the industry. Production types. Types of technological processes. The concept of the production and technological process. Typical groups of technological processes at the enterprises of the industry. Technological processes, their description and general principles of calculation and design. Mathematical description of technological processes.

Topic 2. Operation of machinery and equipment

Basic definitions and concepts of operation. Operational indicators of engineering equipment of enterprises in the industry. Basic concepts of quality. Quantification of manufacturability. The concept of preventive maintenance of equipment.

Topic 3 Reliability of technical systems and engineering equipment

Basic concepts and definitions of reliability. Evaluation of economic indicators of reliability. Evaluation of integral quality indicators. Evaluation of the integral indicator of equipment efficiency. Reliability assessment of engineering equipment and systems according to standard models. The efficiency of the production system. Interrelation of reliability of elements of technical systems and efficiency.

Topic 4. Technological processes of installation of systems and
assembly of engineering equipment

Installation and assembly tasks. Technological processes of installation and assembly. Assembly (disassembly) schemes. Evaluation of the effectiveness of the technological process of installation and assembly. Technological maps of assembly (disassembly). Methods and actions for diagnosing and controlling assembly quality. Diagnosis reliability indicators.

Topic 5. Power supply systems of enterprises

The concept of electrical networks. The concept of the calculation of electrical loads. Selection of electric motors, devices and conductive elements. A simplified method for calculating cable sections. Features of operation and electrical safety engineering.

Topic 6. Ventilation and air conditioning systems

Measures to improve the state of the air environment and the role of ventilation in its improvement. Classification of ventilation systems.

Building aeration. General-exchange ventilation with mechanical stimulation. Air conditioning. Classification of air conditioners and their device. Features of selection and operation.

Topic 7. Water supply and sewerage systems of enterprises

Classification of water supply systems. Water quality requirements and water supply standards. The main schemes of internal water supply. General information about hot water supply and consumption rates.

Classification of sewerage systems. Device internal system sewerage. Features of operation.

Topic 8. Heating systems, central, heat and gas supply

The concept of microclimate and purpose heating devices. General information about central heating and gas supply. Water and steam heating. Air heating. Schemes of gas distribution networks of high and low pressure. Features of operation.

Topic 9. Fire extinguishing and fire alarm systems

Classification of fire extinguishing systems. Aerosol and powder fire extinguishing system. Technological process of the security fire extinguishing system. Installation of automatic extinguishing foam. Special fire extinguishing systems. Features of operation.

Topic 10. Modern means of communication and communication systems

Classification and types of modern means of communication and communications. Composition of digital hybrid supersystems. Integrated business systems. Data transmission and document exchange systems with message switching. public commercial networks.

Topic 11. Sewing studios

Approximate production structure of a tailoring studio according to individual orders. Technological process in the sewing industry and the equipment used. Features of the technology of wet-heat treatment of garments and the equipment used. A rational choice of equipment for the manufacture of garments for individual orders. Features of operation.

Topic 12. Enterprises dry cleaning clothes and laundry factories

The concept of dry cleaning clothes. The main operations of processing products in the technological sequence of dry cleaning and mechanized laundries. Dry cleaning and laundry equipment. The main units and technological operations performed. Regeneration, drying and recovery systems. Features of operation.

Topic 13

Classification of workshops for the repair of household appliances. Basic technological operations for repair. Maps of the technological process of repairing a single part. Schemes of the technological process of product restoration. Characteristics of the main defects of the repaired products. Calculation of the labor intensity of restoring a part.

course project

In the process of learning, the future economist-manager in the specialty 06.08.00 should be able to analyze the production activities of a service enterprise with a feasibility study of the engineering solutions and technological processes of the industry.

Course design in the discipline "Technological systems of the service sector" prepares students for writing the technological part of a graduation project, and in the future prepares an economist-manager to make decisions that are optimal for a given service enterprise, taking into account modern and promising technologies.

The purpose of course design is:

Teach students to apply theoretical knowledge to the solution of specific engineering problems on the technology of the service sector;

Deepen and consolidate theoretical knowledge of production technology and service;

Acquire skills in the development of engineering solutions and in their feasibility study in order to improve the quality of public services.

The subject of course design corresponds to the course program and is linked to practical requirements industry and modern achievements of science and technology. The topics of course projects are the technological processes of service of modern enterprises in the sphere of everyday life and services. The names of the topics of the course projects are presented in Appendix 1. The topic of the course project is selected according to the last digit of the student's record book code.

The choice of engineering equipment for the designed technological system is carried out by the student independently, using Appendix 2. With the permission of the teacher, it is allowed to complete the course project on the topic proposed by the student, but in terms of the content and volume of the proposed methodological manual. The implementation of not your own version of the course project will entail the implementation of the required version, regardless of quality.

Guidelines for the design of the course project
on the chosen topic in accordance with Appendix 1

The coursework consists of explanatory note and graphic part.

The settlement and explanatory note should include the following sections:

Title page of the explanatory note.

Assignment for the course project.

2. Modern directions and level of development of technological and technical systems of the industry.

3. Selection and layout of the industry's technological system equipment indoors.

4. Calculation of artificial lighting.

5. Calculation of the power supply of the premises:

5.1. Load distribution by phases.

5.2. Calculation of the cross section of conductors and cables.

6. Calculation of ventilation (conditioning) of the room.

6.1. Calculation of heat and moisture surpluses.

6.2. Determination of the air flow required to remove excess heat and moisture.

6.3. Selection of fan and electric motor.

6.4. Calculation and selection of a heater.

7. Calculation of the reliability of technological and technical system industries.

7.1. Drawing up a functional diagram of the reliability of the technological system.

7.2. Determination of the probability of failure-free operation of the technological system.

7.3. Grade optimal parameters reliable work.

Conclusion.

References.

Applications.

The main purpose of the title:

Quick definition of the required department of the chapter;

Familiarization with the thematic content and construction of the work in order to better assimilate.

According to the design, each heading in the table of contents is an exact copy the same heading in the main text. Moreover, full verbal, grammatical and graphic correspondence of headings is required. Page numbers should be placed next to each list of headings.

Rice. 1a. Floor plan and lighting fixtures

P 1 =100 P 2 =100 P 3 =100 P 4 =100W

Fig 1b. Design scheme

5.2. Calculation of the cross section of conductors and cables

1. According to fig. 1a, a calculation scheme is drawn up in Fig. 1b.

2. Assuming that the wires are of the same section along the entire length of the wiring, the load moments are calculated not according to the sections "l", but according to the total lengths "L" from each load to the power supply:

М΄=р 1 L 1 + р 2 L 2 + р 3 L 3 + р 4 L 4 [W m].

where: L 1 =l 1 ; L 2 \u003d l 1 +l 2; L 3 \u003d l 1 + l 2 + l 3; L 4 \u003d l 1 + l 2 + l 3 + l 4,

M΄΄ \u003d P 1 l 1 + P 2 l 2 + P 3 l 3 + P 4 l 4

where: P 1 = p 1 + p 2 + p 3 + p 4; P 2 = p 2 + p 3 + p 4; P 3 \u003d p 3 + p 4; P 4 =p 4 .

Moreover: М΄=М΄΄=M.

1. Permissible voltage loss in volts:

ΔU=ΔU% U/100, V.

According to PES for lighting networks ΔU=±5% of the nominal, for power networks ΔU=±10%.

2. The cross section of the wires must not be less than those calculated by the expression:

where: γ – specific conductivity for copper, γ=54, and for aluminum – γ=32;

U - rated voltage, V, for the lighting (single-phase) network U = U f = 220V, for the power (three-phase) network U = U l = 380V.

5. Current at the head section of the wiring, A:

I 1 \u003d P 1 / U f - for a single-phase line;

I 3 \u003d P 1 / 1.73 U l cos φ o 1 - for a three-phase line,

where: P 1 - power passing through the section O1, W; U f - phase voltage, 220 V; U l - linear voltage, 380V; cos φ o1 is the power factor of section O1.

Fig.4 Series-parallel connection of elements

For a structure with parallel serial connection elements (see Fig. 5) the probability of failure-free operation is calculated by the expression: P 5-8 = 1-(1-P 5-6)x(1-P 7-8)= 1-(1-P 5 xP 6) x(1-P 7 xP 8).

Fig.5 Parallel-serial connection of elements

The functioning of service systems is ensured by high-quality and reliable performance the following subsystems with the probability of failure-free operation Р(t); outdoor Electricity of the net cities with Рne (t); internal electrical networks of the building (premises) with Rwe (t); electric power equipment with P with (t); lighting electrical equipment with P 0 (t); technological equipment ( sewing machines, wet-heat treatment equipment, etc.) with Р t (t); equipment of technical service systems (ventilation and air conditioning, fire extinguishing and fire alarm systems, etc.) with R m (t).

For example, the reliability model of a service system with a series-parallel connection of elements can be represented by a block diagram in the form of Fig. 6:

P c (t) P t (t)

P ne (t) P ve (t)

P 0 (t) P m (t)

Rice. 6 Structural diagram of the “reliability model”, taking into account the power supply of technological and technical equipment of the service system

The calculation formula for the probability of failure-free operation of this system will have the following form:

R ss (t) \u003d R ne (t) xR ve (t) xR som (t) \u003d R ne (t) xR ve (t) xx

If the block diagram of the reliability model of the service system includes an urban outdoor water supply system with a probability of failure-free operation Р нв (t) and an internal water supply system of a room with a probability of failure-free operation Р вв (t), then the block diagram will take the form of Fig. 7:

P ne R ve

Rice. 7 Structural diagram of the reliability model, taking into account the power and water supply of technological and technical equipment of the service system with series-parallel connection of elements

If the service system is represented by a parallel-serial connection of elements P s, P t, P 0 and P m, then the block diagram will take the form of Fig. 8:

R ss

Rice. eight

If the probability of non-failure operation of the system exceeds 0.9, i.e. λ with t ≤ 0.1 with accuracy sufficient for practice in case of sudden failures of elements, when the running-in of the equipment is completed, and aging has not yet begun, the exponential distribution law of the probability of failure-free operation is most applicable, i.e.

where is the system failure rate, 1/h; - working time, hours

and

Failure rate:

Mean time between failures (until the first failure), hours: T sr.c =1/λ s at maximum failure rate (a s. max).

If there is a redundancy of elements of the service system by a common substitution with an integer multiplicity and the probability of failure-free operation is below 0.9, then the following relationship is true:

In this case, the failure rate is calculated by the formula:

where is the average failure rate of each of the elements of the subsystems during a given average time t 0 .

For example, with an average probability of non-failure operation of the elements of subsystems P avg. =0.998 we have for t 0 =10 hours of work: λ 0 t 0 =0.002, i.e. λ 0 \u003d \u003d 0.2 × 10 -3 1 / h. Mean time to first failure of the system T cf. \u003d 2T 0 cf., where T 0 cf. - mean time to first failure of a non-redundant system:

T 0 cf. \u003d 1 / λ 0 \u003d 1 / 0.2 10 -3 \u003d 5000 h. Mean time to first failure of a redundant system T cf. \u003d 2T 0 cf. =10000h

Then the failure rate is calculated by the formula:

and the failure rate according to the expression:

When constructing dependence graphs and as a function of time, set the time values ​​with a calculated interval of 15000 hours (1.5 × 10 4 hours).

Execution steps

1. Draw up a functional-structural diagram of the reliability of a technical system that has the above selected mechanisms and devices according to the design and principle of operation of individual devices.

2. Distribute and combine elements into subgroups and groups, taking into account their interaction.

3. Compose calculation expressions for calculating the probabilities of failure-free operation of individual subgroups and the system as a whole.

5. Calculate the mean time between failures.

6. Plot graphical dependencies λ with and as a function of time. The values ​​of λ with and tabulate.

Conclusion

This section completes the course project and should contain the conclusions of the work done.

Here it is necessary to highlight the following:

1. The degree of elaboration of the tasks set during the period of work on the course project.

2. Draw conclusions on the main results obtained.

3. Outline the features of the work in the course of the course project.

4. Give suggestions on possible directions and ways to improve the tasks set to eliminate the shortcomings of the project.

Literature

1. I.L. Kaganov. Course and diploma design. – 3rd edition. - M.: Agropromizdat, 1990 - 351 p.

2. Bulat E.P., Tarabanov V.N. Methodological guide to course design for students in the discipline "Engineering and Technology of the Industry" (special 06.08.00). - St. Petersburg: SPbTIS, 1996.

3. Soloviev V.N., Goncharov A.A. Organization of activity of service enterprises. Methodological guide to course design - St. Petersburg: SPbGISE, 2000.

4. V.V. Gladkevich, V.I. Zaplatinsky. Reliability of household appliances. Tutorial. - St. Petersburg: SPbTIS, 1995.

5. S.F. Privalov. Electrical appliances and devices. Master's Handbook. - St. Petersburg: Lenizdat, 1994. - 511p.

Applications

The appendix provides supporting information that is for reference only.

Applications include the following materials:

Annex 1. Topics of course projects

Appendix 2. Characteristics of the main equipment of service systems. Annex 3. Design of the title page. Appendix 4 Maximum allowable concentration (MPC) of harmful substances in the room. Appendix 5. i-d diagram of air. Appendix 6. Specifications of fans. Appendix 7. Electric motors of the AO and A series. Appendix 8. Lines, signs and geometric shapes used in the standards.

Attachment 1

Topics of course projects

No. p / p	Topic name	Note
	Project of a technological (technical) system of a cultural and entertainment center (cinema, gaming complex, circus, attraction, salon-exhibition, etc.)	The type of object is indicated in the task by the head of the course project.
	Project of a technological (technical) system for a beauty salon (hairdresser, etc.)
	The project of the technological (technical) system of the enterprise "bar-cafe-restaurant" (kitchen, catering department, dining room, etc.)
	The project of the technological (technical) system of the atelier of individual tailoring
	Project of a technological (technical) system of a sports and recreation complex (gym, swimming pool, etc.)
	The project of the technological (technical) system of the hotel (camping, tourist base, etc.)
	Project of a technological (technical) system for dry cleaning of clothes (micro dry cleaning, etc.).
	The project of the technological (technical) system of the bath and laundry plant (pool, sauna, etc.).
	The project of the technological (technical) system of the office premises of the industry.
	Project of a technological (technical) system for a workshop in the service sector (manufacturing and repair of metal products, after-sales service of household appliances, etc.)

Appendix 2

Characteristics of the main equipment and technology of the service sector
(accepted conditionally)

No. p / p	Equipment name	Dimensions, L In mm	Consumed power, kWt	Quantity warm- emissions, kJ/h	The amount of moisture leniya, kg/h	Probability of failure-free operation.
	Household Machines and Appliances Electric Oven	850 600				0,95
	Electric meat grinder	520 200	1,5			0,92
	Food processor	460 320	0,8			0,93
	Dishwasher	850 450	2,1		0,5	0,91
	Electric water heater	1350 650	4,0			0,94
	Electric grill, oven	420 180	2,0			0,93
	Electric heaters, convectors	1000 100	2,5			0,92
	Air cleaner, climate control	400 200	0,6			0,96
	A vacuum cleaner	540 190	0,8			0,95
	Refrigerator compression	600 600	0,2			0,94
11.	Microwave	510 360	0,8			0,98
12.	Washing machine household	600 600	3,0			0,93
	mobile air conditioner	850 440	2,0			0,95
14.	oil heater	860 120	2,4			0,98
15.	Electric heater fan	300 175	2,0			0,94
16.	electric grinder	240 140	0,22			0,95
17.	Hand dryer	230 200	0,1			0,93
18.	Electrical appliances for welding polyethylene film	210 140	0,22			0,94
19.	Laundry dryer	600 450	2,5		0,6	0,93
	ironing machine	900 400	1,3		0,3	0,95
	Equipment of service enterprises Pumping station	500 210	0,8			0,92
	Compressor plant	2750 610	1,7			0,92
	Vacuum plant	750 490	2,0			0,93
	steam generator	960 700			4,0	0,91
	steam press	1070 1300			6,0	0,92
	Steam mannequin	1241 690			8,0	0,93

Table continuation