Profession "Electrician for power networks and electrical equipment": training, responsibilities, job description. Electrical Basics

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An electrician of the 2nd category for servicing electrical equipment and networks must be able to: 1) service power and lighting electrical installations with simple schemes inclusions; 2) perform simple work at departmental power stations, transformer power stations with their complete disconnection from voltage under the guidance of electricians more than highly qualified; 3) carry out inspections and scheduled preventative repairs of serviced equipment; 4) determine the cause of the malfunction and eliminate simple damage in power and lighting networks, ballasts and electric motors; 5) cut, splice, solder and insulate wires for voltages up to 1000 V; 6) charge, install simple lighting fixtures (normal and dust-proof with incandescent lamps), switches, plug sockets, wall sockets and industrial spotlights; 7) check the insulation resistance of electrical installations with a megger; 8) install and regulate electrical alarm devices; 9) properly organize and maintain workplace, use materials, tools and electricity sparingly; 10) comply with safety regulations, occupational health, fire regulations, regulations internal regulations; 11) use the most appropriate and modern methods labor organization. A 2nd category electrician must know: 1) the basics of electrical engineering; 2) the operating principle of electric motors, generators, transformers, control equipment and measuring instruments; 3) electrical materials, their properties and purpose; 4) methods of splicing and soldering wires low voltage; 5) rules for turning on and off electric motors; 6) rules for providing first aid in case of injury electric shock; 7) power supply diagram and equipment location. on the serviced area; 8) general information about relay protection and types of relays; 9) rules for charging and installing lighting fixtures; 10) purpose and conditions of use of the most common universal and special devices, instrumentation; 11) the basics of organizing the economics of production and NOT; 12) Basic information on standardization and product quality control; 13) reasons for marriage; measures to prevent and eliminate it; 14) safety regulations, fire safety and internal regulations; 15) rules of occupational hygiene and industrial sanitation.
Requirements for certification of electricians for the maintenance of electrical equipment and networks for the 3rd category
An electrician of the 3rd category, in addition to the requirements stipulated by the qualification characteristics of an electrician of the 2nd category, must be able to: 1) service power and lighting electrical installations with switching circuits of medium complexity; 2) perform simple work at departmental power plants and transformer substations with their complete disconnection from voltage; 3) carry out operational switching in electrical networks, inspection of transformers, switches, disconnectors and drives to them without disassembling structural elements; 4) regulate the load of electrical equipment in the serviced area; 5) check the condition of the insulation with a megohmmeter and measure the value of its resistance in electric motors, transformers and cable networks; 6) identify and eliminate faults and damage to electrical installations; 7) cut, splice, insulate and solder wires with voltages above 1000 V; 8) maintain, install and turn on electrical measuring instruments and electricity meters; 9) maintain and repair electric motors with a power of up to 100 kW, control gear distribution devices voltage up to 1000 V; 10) charge and maintain complex lighting fixtures (explosion-proof) with incandescent lamps and install fluorescent lamps.
An electrician of the 3rd category must know: 1) the design of serviced electric motors, generators, transformers, switchgear equipment, electrical networks and electrical appliances, oil switches, fuses, contactors, batteries, static capacitors, controllers, rectifiers; 2) rules and regulations for testing winding insulation with a megohmmeter; 3) techniques and methods for splicing and soldering high voltage wires; 4) basic requirements for relay protection; 5) techniques for finding and eliminating faults in electrical networks and electrical machines; 6) principles of operation of rheostats, autotransformers, electric drives with semi-automatic control; 7) definition permissible loads on transformers, electric motors, cables and wires; 8) arrangement of universal and special devices, simple and medium complexity instrumentation.

Electrical installation personnel training

Personnel servicing electrical installations, before being assigned to independent work or when transferred to another, must undergo industrial training at work. This also applies to personnel who have had a break in work for more than 6 months. Classes are conducted by an experienced employee from the electrical engineering staff of the enterprise to whom the student is assigned by order or directive for the enterprise, workshop, or site. After completing the training, the student undergoes a knowledge test according to the rules in a special commission technical operation, technical safety rules, job and operational instructions, technical minimum for serviced equipment.
After testing their knowledge, each employee of the operational and maintenance personnel must undergo an on-the-job internship for at least 2 weeks under the supervision of an experienced employee. This is not required for maintenance personnel.
Periodic testing of knowledge of PTE, PTB and production instructions produced once a year - for personnel directly servicing existing electrical installations, carrying out adjustment, electrical installation, renovation work or preventive tests, as well as personnel drawing up orders and organizing these works.
Persons who have violated the PTE, safety regulations or production instructions are subject to an extraordinary knowledge test.
If the assessment of knowledge of PTE, PTB is unsatisfactory, a re-check is carried out within the time frame established by the qualification commission, but not earlier than after 2 weeks.
Personnel who show unsatisfactory knowledge during the third inspection are transferred to another job not related to the maintenance of electrical installations.
If the expiration date of the certificate occurs during vacation or illness of staff, it is allowed to extend the validity of the certificate for 1 month. without special design.
The validity of the certificate of a person who re-passes the knowledge test in connection with receiving an unsatisfactory assessment is extended by the qualification commission until the period appointed for the second or third check, unless there is a special decision of the commission on the temporary removal of this person from working in electrical installations.
Testing the knowledge of PTE and PTB by electrical technical personnel of small enterprises is carried out by a commission created at a higher organization, with the participation of the head of the enterprise, organization, institution where the person being tested works.
Each employee who successfully passes the test is issued a certificate (Form 1) with assignment of a qualification group
on safety (II-V). The certificate gives the right to service electrical installations.
Page 1 Form 1
Certificate of testing knowledge of PTE and PTB during operation of consumer electrical installations
Business name................................................ ........................................................ ..
Page 2 Certificate No.
Comrade................................................... ........................................................ ........................................................ .....
Job title........................ ......................... ........................................................ .........................................
Approved for work in electrical installations with voltage.................................................... ...............
Shops, departments................................................... ........................................................ .................... . . . . .
As................................................ .staff........................................................ ......................
Date of issue................................................ ........................................................ ........................................
m. n. Person responsible for electrical equipment.................................. Signature. . . .
Page 3. Knowledge test results

Page 4. Certificate of right to conduct
special works

Page 5. Memo. Knowledge testing is carried out at least once every 3 years.
Without a seal and marks on the results of verification and signatures, it is invalid.
Admission to independent duty or independent work in electrical installations they are drawn up by a special order for the enterprise, workshop, site.
In order for staff to master the most advanced work methods and increase knowledge of the design and operation of equipment, the following is organized:

  1. course (group, individual) training for advanced training;
  2. study of PTE, PTB, PUE instructions and other rules related to the operation of these installations;
  3. conduct emergency drills at workplaces to train operating personnel the best ways and techniques for quickly preventing and eliminating problems and accidents;
  4. periodically (at least once a quarter) conduct production briefings directly at the workplace to train personnel in the correct and safe care of equipment and rational work methods.

\Standard job description for electrician, 2nd category

Job Description for Electrical Fitter 2nd Class

Job title: Electrical fitter 2nd category
Subdivision: _________________________

1. General Provisions:

    Subordination:
  • Electrical fitter of the 2nd category is directly subordinate to...................
  • Electrical fitter 2nd category follows instructions.................................................... ..........

  • (the instructions of these employees are followed only if they do not contradict the instructions of the immediate supervisor).

    Substitution:

  • Electrical fitter of the 2nd category replaces.................................................... .......................................
  • Replaces electrician-fitter of the 2nd category.................................................... ....................................
  • Hiring and dismissal:
    An electrical fitter is appointed to the position and dismissed by the head of the department in agreement with the head of the department.

2. Qualification requirements:
    Must know:
  • basics of electrical engineering in the scope of work performed
  • device and operating principle of simple electric machines power up to 50 kW, instruments, starting equipment and technical specifications for their installation
  • methods of working with pneumatic and electric drills and on drilling machines
  • purpose of materials used in the work
  • solder and fluxes used in soldering, and soldering rules
  • methods of laying wires in gas pipes, on casters and cable suspensions
  • rules for switching on electrical machines
  • plumbing and instrumentation tools, fixtures and equipment used during assembly and installation.
3. Job responsibilities:
  • Assembly simple knots and devices using universal devices and tools.
  • Installation and installation of AC and AC electrical machines direct current power up to 50 kW and welding machines power up to 30 kW.
  • Testing of mounted machines and equipment after installation.
  • Assembly and installation of medium complexity components and equipment using special devices and templates.
  • Manufacturing of parts, assembly of fixtures and templates.
  • Manufacturing of parts, assembly, testing and installation of simple electrical structures of low-voltage equipment, as well as electrical appliances and ballasts.
  • Installation and soldering of conductor lugs.
  • Painting of conductors in specified colors.
  • Assembly and installation of lighting panels up to eight groups of couplings, tees and boxes.
  • Assembling wires of simple circuits.
  • Preparation of the panel, installation of communication equipment and installation of the power station.
  • Laying light, power and signaling networks.
  • Punching nests in brick and concrete walls with a bolt and pneumatic tool.
  • Drilling, reaming holes, cutting threads manually and on machines.
  • Tinning of cable ends.
  • Assembly, installation and testing of more complex products and electrical machines under the supervision of a more highly qualified electrical fitter.
page 1 Job description Electrical fitter
page 2 Job description Electrical fitter

4. Rights

  • An electrical fitter has the right to give instructions and tasks to subordinate employees on a range of issues included in his functional responsibilities.
  • An electrical fitter has the right to control the implementation of production tasks and the timely execution of individual assignments by employees subordinate to him.
  • The electrician has the right to request and receive necessary materials and documents related to his activities and the activities of his subordinate employees.
  • An electrical fitter has the right to interact with other services of the enterprise on production and other issues included in his functional responsibilities.
  • The electrician has the right to get acquainted with draft decisions of the enterprise management concerning the activities of the Division.
  • The electrical fitter has the right to submit proposals for improvement of work related to the duties provided for in this Job Description for the manager’s consideration.
  • An electrical fitter has the right to submit proposals for consideration by the manager on encouraging distinguished workers, imposing penalties on violators of production and labor discipline.
  • The electrical fitter has the right to report to the manager about all identified violations and shortcomings in connection with the work performed.
5. Responsibility
  • The electrician is responsible for improper execution or failure to fulfill their official duties as provided for in this job description - within the limits specified labor legislation Russian Federation.
  • An electrical fitter is responsible for violating the rules and regulations governing the activities of the enterprise.
  • When transferring to another job or being released from a position, the Electrical Fitter is responsible for the proper and timely delivery of work to the person taking up the present position, and in the absence of one, to the person replacing him or directly to his supervisor.
  • An electrical fitter is responsible for offenses committed in the course of his activities, within the limits determined by the current administrative, criminal and civil legislation of the Russian Federation.
  • The electrician is responsible for causing material damage- within the limits determined by the current labor and civil legislation of the Russian Federation.
  • The electrician is responsible for compliance current instructions, orders and instructions for maintaining trade secrets and confidential information.
  • The electrical fitter is responsible for compliance with internal regulations, safety regulations and fire safety.
This job description has been developed in accordance with (name, number and date of document)

Head of structural

0.1. The document comes into force from the moment of approval.

0.2. Document developer: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

0.3. The document has been approved: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

0.4. Periodic verification of this document is carried out at intervals not exceeding 3 years.

1. General Provisions

1.1. The position “Electrician for repair and maintenance of electrical equipment, 2nd category” belongs to the “Workers” category.

1.2. Qualification requirements- complete general secondary education and professional training in production, without work experience requirements.

1.3. Knows and applies in practice:
- structure and principle of operation of electric motors, generators, transformers, switching and control equipment, batteries and electrical appliances;
- main types of electrical materials;
- their properties and purpose, rules and methods of installation and repair of electrical equipment in the scope of the work performed;
- name, purpose and rules for using working and control and measuring tools and basic knowledge about production and workplace organization;
- techniques and methods for replacing, splicing and soldering low voltage wires;
- rules for providing first aid in case of electric shock;
- labor protection rules when servicing electrical installations in the scope of qualification group II;
- techniques and sequence of execution rigging work.

1.4. An electrician for the repair and maintenance of electrical equipment of the 2nd category is appointed to the position and dismissed from the position by order of the organization (enterprise/institution).

1.5. An electrician for the repair and maintenance of electrical equipment of the 2nd category reports directly to _ _ _ _ _ _ _ _ _ _ .

1.6. An electrician for the repair and maintenance of electrical equipment of the 2nd category supervises the work of _ _ _ _ _ _ _ _ _ _ .

1.7. An electrician for the repair and maintenance of electrical equipment of the 2nd category during his absence is replaced by a person appointed to in the prescribed manner, which acquires the corresponding rights and is responsible for the proper fulfillment of the duties assigned to it.

2. Characteristics of work, tasks and job responsibilities

2.1. Performs individual simple repair and maintenance work on electrical equipment under the guidance of a highly qualified electrician.

2.2. Installs and repairs distribution boxes of clamps, safety panels and lighting fixtures.

2.3. Cleans and ventilates compressed air electrical equipment with partial disassembly, washing and wiping of parts.

2.4. Cleans contacts and contact surfaces.

2.5. Performs processing, splicing, insulating and soldering of wires with voltages up to 1000 V.

2.6. Lays installation wires and cables.

2.7. Maintains and repairs solar and wind power plants with a capacity of up to 50 kW.

2.8. Performs simple plumbing, installation and carpentry work during repair of electrical equipment.

2.9. Turns electrical equipment on and off and performs simple measurements.

2.10. Works with pneumatic and electric tools.

2.11. Performs rigging work using simple lifting equipment and cranes operated from the floor.

2.12. Checks and measures the insulation resistance with a megger of the distribution network of stators and rotors of electric motors, transformer windings, cable inputs and outputs.

2.13. Knows, understands and applies current regulations relating to his activities.

2.14. Knows and complies with the requirements of regulations on labor protection and environment, complies with the standards, methods and techniques of safe work performance.

3. Rights

3.1. An electrician for the repair and maintenance of electrical equipment of the 2nd category has the right to take actions to prevent and eliminate cases of any violations or inconsistencies.

3.2. An electrician for the repair and maintenance of electrical equipment of the 2nd category has the right to receive all social guarantees provided for by law.

3.3. An electrician for the repair and maintenance of electrical equipment of the 2nd category has the right to demand assistance in the performance of his official duties and the exercise of his rights.

3.4. An electrician for the repair and maintenance of electrical equipment of the 2nd category has the right to demand the creation of organizational and technical conditions necessary for the performance of official duties and the provision necessary equipment and inventory.

3.5. An electrician for the repair and maintenance of electrical equipment of the 2nd category has the right to get acquainted with draft documents relating to his activities.

3.6. An electrician for the repair and maintenance of electrical equipment of the 2nd category has the right to request and receive documents, materials and information necessary to fulfill his job duties and management orders.

3.7. An electrician for the repair and maintenance of electrical equipment of the 2nd category has the right to improve his professional qualifications.

3.8. An electrician for the repair and maintenance of electrical equipment of the 2nd category has the right to report all violations and inconsistencies identified in the course of his activities and make proposals for their elimination.

3.9. An electrician for the repair and maintenance of electrical equipment of the 2nd category has the right to familiarize himself with documents defining the rights and responsibilities of the position held, and criteria for assessing the quality of performance of job duties.

4. Responsibility

4.1. An electrician for the repair and maintenance of electrical equipment of the 2nd category is responsible for failure to fulfill or untimely fulfillment of the duties assigned by this job description and (or) failure to use the granted rights.

4.2. An electrician for the repair and maintenance of electrical equipment of the 2nd category is responsible for failure to comply with internal labor regulations, labor protection, safety precautions, industrial sanitation and fire protection.

4.3. An electrician for the repair and maintenance of electrical equipment of the 2nd category is responsible for the disclosure of information about an organization (enterprise/institution) related to a trade secret.

4.4. An electrician for the repair and maintenance of electrical equipment of the 2nd category is responsible for failure to fulfill or improper fulfillment of internal requirements regulatory documents organization (enterprise/institution) and legal orders of management.

4.5. An electrician for the repair and maintenance of electrical equipment of the 2nd category is responsible for offenses committed in the course of his activities, within the limits established by the current administrative, criminal and civil legislation.

4.6. An electrician for the repair and maintenance of electrical equipment of the 2nd category is responsible for causing material damage to an organization (enterprise/institution) within the limits established by the current administrative, criminal and civil legislation.

4.7. An electrician for the repair and maintenance of electrical equipment of the 2nd category is responsible for the unlawful use of the granted official powers, as well as their use for personal purposes.

5. Examples of work

5.1. Lighting fittings: switches, sockets, sockets, etc. - installation with network connection.

5.2. Cable inputs and outputs - checking the insulation resistance with a megger.

5.3. The parts are simple - coil springs, brackets, jumpers, lugs and contacts - fabrication and installation.

5.4. Electric motors and generators - partial disassembly, cleaning and blowing with compressed air, lubrication, replacement of brushes.

5.5. Grounding electrodes - installation and driving.

5.6. Lighting - installation.

5.7. Structures made of steel and other metals for electrical appliances - production and installation.

5.8. Contactors, relays, controllers, command devices - checking and tightening fasteners, cleaning and filing contacts, replacing and lubricating them, replacing arc extinguishing devices.

5.9. Household electrical appliances: stoves, irons, etc. - disassembly, repair and assembly.

5.10. Wires and cables (aerial) - installation, dismantling, repair and replacement.

5.11. Welding transformers - disassembly, simple repairs, assembly, installation of terminal board.

5.12. Electric lamp sockets - soldering ends.

5.13. Power shields or lighting network with a simple circuit (up to eight groups) - manufacturing and installation.

5.14. Switchboards and distribution boxes - replacement and installation of fuses and switches.

The job description of an electrician for repair and maintenance regulates labor relations. It determines the procedure for subordinating an employee, appointing and dismissing him from his position. The document contains requirements for the employee’s education, knowledge, skills, a list of his rights, functional duties, and types of responsibilities.

Sample of a typical job description for an electrician for repair and maintenance

I. General provisions

1. A repair and maintenance electrician belongs to the category of workers.

2. The electrician for repairs and maintenance is directly subordinate to the chief power engineer.

3. A person who has a specialized secondary education in the field of activity and work experience in a similar position for at least one year is appointed to the position of electrician for repair and maintenance.

4. The appointment and dismissal of a repair and maintenance electrician is made by order of the director of the organization upon the recommendation of the HR department/immediate supervisor.

5. The electrician must know:

  • basics of electronics, electrical and radio engineering;
  • arrangement of electrical machines, units, measuring instruments;
  • technical characteristics, design, principle of operation of devices and equipment;
  • provisions of the organization’s governing documents that define the activities of an electrician;
  • rules for servicing electronic devices;
  • rules, methods for establishing the operability of electrical machines, mechanisms, electrical devices, instruments;
  • scheme automatic control, methods of their repair and maintenance;
  • rules for handling electrical materials;
  • methods of comprehensive testing of electrical installations, electrical devices, devices;
  • standards, methods of repair, installation of cable networks in explosion and fire hazardous conditions;
  • rules for drawing up electrical diagrams and other technical documentation for electrical equipment;
  • operating principle of automatic protection;
  • electrical circuits for switching distribution equipment;
  • signs of damage to electrical equipment and methods for eliminating them;
  • permissible loads on transformers, electric motors, electrically conductive lines of various sections;
  • standards for the use of spare parts and materials;
  • norms, rules of safety, labor protection, fire protection;
  • organization and technology of electrical installation work;
  • basics labor law RF;
  • internal labor regulations.

6. During the absence of an electrician for repairs and maintenance, his rights, functional duties, and responsibilities are assigned to someone else executive, appointed in accordance with the established procedure.

7. The repair and maintenance electrician is guided in his activities by:

  • this job description;
  • orders, instructions from management;
  • leading, regulations organizations;
  • internal labor regulations;
  • orders of the immediate superior;
  • legislation of the Russian Federation;
  • Charter of the organization.

II. Job responsibilities of an electrician for repair and maintenance

A repair and maintenance electrician performs the following job responsibilities:

1. Monitors proper, trouble-free operation and correct use serviced equipment.

2. Performs the following work in a timely manner:

  • adjustment, repair and regulation of critical, experimental electrical sections technological equipment, automatic line communications;
  • disassembly, repair, assembly, installation of high-voltage electrical equipment various types voltage more than 15 kV;
  • maintenance, adjustment and regulation of electronic devices;
  • adjustment, maintenance of welding machines of various types of design, pulsed, ultrasonic, electronic installations, remote protection of automatic transfer switching systems, equipment using semiconductor element base;
  • repair, installation and dismantling cable lines in special pipelines filled with oil, gas under pressure;
  • checking the accuracy classes of measuring equipment;
  • repair of epoxy terminations in high-voltage networks, installation of couplings between copper and aluminum conductors;
  • preparing electrical equipment for commissioning;
  • testing of electrical motors, devices, transformers after major repairs.

4. Instructs employees operating electrical equipment on how to prevent work-related injuries.

5. Study the operating modes of equipment, establish the causes of increased wear, take measures to prevent and eliminate them.

6. Studies and implements advanced repair methods, Maintenance, installation according to the assigned type of equipment.

7. Participates in equipment troubleshooting, installation, configuration, electrical testing.

8. Places and prepares requests for spare parts, materials, tools. Ensures their careful, rational use.

9. Repairs and regulates complex, critical, experimental electrical devices and instruments.

10. Participates in the preparation of measures to improve the quality of work, reliability of assigned technical devices, in the modernization of electrical equipment.

11. Carry out comprehensive tests of electrical equipment, motors and transformers after major repairs.

12. Prepares electrical equipment for commissioning.

III. Rights

A repair and maintenance electrician has the right to:

1. Act independently, within your competence.

2. Improve your qualifications and participate in training events.

3. Contact consultants on issues beyond the competence of an electrician for repair and maintenance.

5. Interact on official issues with departments of the organization.

6. Be informed about decisions related to your own work.

7. Require the management of the organization to form normal conditions to perform duties and ensure safety.

8. Inform management about identified shortcomings in the organization’s activities and submit proposals for their elimination.

9. Do not begin to perform your duties if a danger to health or life appears.

IV. Responsibility

The repair and maintenance electrician is responsible for:

1. Quality of performance of job duties.

2. Violation of safety regulations.

4. Reliability of the information provided about the operation of the equipment.

5. Violation of the provisions of the organization’s governing documents.

6. Results decisions made, independent actions.

7. Violation of labor discipline rules, internal labor regulations, fire protection standards.

8. Causing damage to the organization, its employees, or the state.

9. Improper execution of their official duties.

Characteristics of the work. Disassembly, repair and assembly of simple components and parts of electric motors, electrical devices and electrical appliances. Charging and installation of simple lighting fixtures and small spotlights, installation, dismantling, repairs distribution boxes, safety panels. Preparation of reinforcing putties according to the established recipe. Tinning and soldering using tin and copper solders. Checking and repairing simple ballasts. Rigging work when moving electrical equipment using crane beams, electric hoists and winches with electric drive. Carrying out plumbing, repair and assembly work on electrical machines high power and voltage under the guidance of a more highly qualified electrician. Laying of installation drives and cables in gas tubes, on rollers and insulators. Installation and connection to the network of lamps with up to five lamps. Checking and measuring the insulation resistance of transformer windings, cable inputs and outputs with a megger with voltages up to 2500 V. Replacement and installation of supports up to 9 m high, equipping them with hooks and insulators.

Electrician for electrical equipment repair, 2nd category Must know: operating principle of electric machines, direct and alternating current, transformers, electrical equipment and electrical appliances; rules and methods for performing work on repairing electrical machines; rules for laying cable lines and overhead electrical networks in tubes, on rollers, insulators and cable hangers; main types of electrical materials, their properties and purpose; production rules earthworks when laying cables, changing and installing supports; cooking methods soft solders and putties; rules for installing electrical appliances on panels and stands; purpose and conditions of use of the most common universal and special devices, medium-complexity control and measuring instruments; techniques and sequence of rigging work when moving electrical equipment during its repair and installation.
Work examples
Lighting fittings: switches, sockets, sockets, etc. - installation with network connection.
Oil switches - draining the oil, inspecting and cleaning the insulators.
The parts are simple: coil springs, jumpers, tips and contacts - manufacturing.
Illumination - installation.
Cables - cutting ends.
Electrical machine collectors - cleaning.
Manufacturing and installation of structures made of steel and other metals for electrical appliances.
Household electrical appliances: tiles, irons, etc. - disassembly, repair and assembly.
Wires and cables (aerial) - installation, dismantling, repair and replacement.
Welding transformers - disassembly, simple repairs, assembly, installation of terminal board.
Electric lamp sockets - soldering ends.
Switchboards and distribution boxes - replacement and installation of fuses and switches.
Power or lighting boards with a simple circuit (up to eight groups) - manufacturing and installation.
Grounding electrodes - installation and driving.

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