Instructions on labor protection for a telephone electrician when servicing cross-bar exchanges

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OCCUPATIONAL SAFETY AND HEALTH
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Instructions on labor protection for a telephone electrician when servicing coordinate exchanges. Full Document

Occupational Safety and Health

Occupational Safety and Health / Standard instructions for labor protection

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Safe Operation

1. General requirements for labor protection

1.1. Persons who have passed a medical examination, introductory briefing and on-the-job training, testing knowledge of labor protection rules and having an electrical safety group of at least III are allowed to work in the automatic rooms of coordinate automatic telephone exchanges (ATS).

1.2. The electrician of the automatic telephone exchange is obliged:

comply with the internal labor regulations;
know and comply with the rules on labor protection when working at telephone enterprises in the scope of the duties performed, annually confirm the III electrical safety group;
know the procedure for checking and using hand-held mechanical and power tools, devices for ensuring safe work performance (stirrup ladders, etc.), protective equipment (dielectric gloves, mats, tools with insulating handles, a voltage indicator, safety glasses);
perform only the work that is defined in the equipment operating instructions or job descriptions approved by the administration of the enterprise, and provided that safe methods of doing it are well known;
know and be able to provide first aid to victims of electric current and other accidents;
follow the instructions on fire safety measures.

1.3. When servicing automatic telephone exchanges, the following hazardous and harmful production factors are possible:

dangerous voltage in the electrical circuit, the closure of which can occur through the human body, electric shock, electric arc burn;
penetration of explosive gases through the mine;
the occurrence of harmful substances (gasoline vapors, lead aerosols);
low air humidity and high temperature;
insufficient illumination of the working area;
falls from a height of personnel while working on ladders and ladders;
falling objects from a height (tools, equipment elements).

1.4. The victim or eyewitness shall immediately notify the immediate supervisor of each accident at work.

1.5. For failure to comply with this instruction, the perpetrators are held liable in accordance with the internal labor regulations or penalties determined by the Labor Code of the Russian Federation.

2. Labor protection requirements before starting work

2.1. Put on and carefully tuck in the overalls and technological footwear (slippers) established in accordance with current standards, avoiding hanging ends and constraint when moving.

2.2. Check and verify the availability and serviceability of the fixed tool, devices to ensure safe work performance, personal protective equipment, fire extinguishing equipment.

2.3. Check the condition of general and ordinary lighting.

2.4. Do not carry out any work on the repair of devices, inventory, etc., if this is not part of the employee's responsibilities.

2.5. Report all shortcomings and malfunctions found during the inspection of the workplace to the shift supervisor (senior engineer) to take measures to eliminate them completely.

2.6. Place the tool in the workplace with maximum convenience, avoiding the presence of unnecessary items in the work area.

3. Labor protection requirements during work

3.1. Work only in serviceable and carefully fitted overalls and safety shoes and use personal protective equipment required at the workplace in accordance with current standards.

3.2. Maintenance of devices located in the upper parts of the tripods should be carried out from serviceable marked stepladders.

3.3. Install the ladder firmly, checking the stability of its installation before lifting. Ladders with a height of 1,3 m or more must be equipped with a stop.

3.4. It is forbidden to work from the top 2 steps of stepladders that do not have railings or stops, as well as to be on the steps by more than one person.

3.5. The replacement of signal lamps on the public board should be carried out from ladders with a height of at least 2 m.

3.6. Do not leave loose objects on the ladders and throw them down.

3.7. Movable ladders with upper roller sliding (ladders used when working in two tiered crosses must be secured with locking devices.).

3.8. Changing individual fuses should be done with only one hand, and the second or part of the body should not touch grounded structures.

3.9. The replacement of an ordinary fuse must be carried out by two persons, one of whom must stand at the bottom of the stepladder, with the obligatory fulfillment of clause 3.8.

3.10. Replacement of ordinary fuses must be carried out with the load removed.

3.11. All repair work on cabinet plug-in devices, cleaning of mounting, guards, keys, and other equipment should be done with the cabinet fuses removed.

3.12. Pliers with insulating grips should be used when changing the individual fuses on the cabinet.

3.13. Equipment racks that have voltages greater than 42 V AC and 110 V DC must be provided with dielectric mats.

3.14. All enclosures and covers of equipment that cover 42 V AC contacts must display the electrical voltage symbol to alert service personnel to the danger of electrical shock.

3.15. During preventive inspection and elimination of accidental injuries in the ISS, block the ISS and remove the instrument fuse before starting work. Perform work only using tools with insulating handles and using a dielectric mat.

3.16. At ATSC type KIK-20T, the removal of boards to detect damage, carry out installation and other work is carried out by two persons, and the delivery of boards to the desktop is carried out on trolleys (if only women work in the shift.).

3.17. Elimination of damage and repair of the UAK is carried out only when the voltage is completely removed by the engineer of the car dealership.

3.18. The portable power tool used (soldering iron, step-down transformer) must be tested and have an inventory number, systematically and timely checked and repaired.

3.19. During an external examination of power tools and appliances, it is necessary to pay attention to the integrity of the insulation of the wires, the absence of bare current-carrying parts.

3.20. Checking for the absence of grounding on the case and the condition of the insulation is carried out by a specially appointed person at least once every 1 months.

3.21. The length of the hose wire for connecting the step-down transformer to the network must not exceed 3 m.

3.22. The case of portable household and measuring instruments, step-down transformers at a voltage of 220 V must be grounded.

3.23. For soldering, use electric soldering irons with a voltage not higher than 42 V.

3.24. It is necessary to use backlights for 60 V DC and not higher than 42 V AC, provided that the body of the stand is made of insulating material and has a closed screen.

3.25. In the production of soldering devices with solder in the adjusting workshops, there should be special tables equipped with local suction (exhaust), electric lighting and a fire-resistant stand for the soldering iron, containers for drains and flux.

3.26. When performing work on technological equipment, the presence of other workers in the immediate vicinity of the soldering place is prohibited.

Soldering processes are accompanied by air pollution with harmful substances. There is lead contamination of the surfaces and skin of the hands, as well as the oral cavity.

When performing soldering at non-fixed workplaces, it is necessary to use trays to place soldering irons, solder, and other materials on them.

3.27. The ISS covers must be removed and put on with great care to prevent them from falling on personnel.

3.28. Doors and windows must be kept closed at all times.

3.29. Hands, clothes and shoes of personnel should always be dry.

3.30. When working in cross country:

During a thunderstorm, work on the switchboards is prohibited.

If the thermal coil burns out, it is necessary to check with a voltage indicator that there is no extraneous voltage on the line. If it is, insulation must be installed. Replace the thermal coil only if there is no extraneous voltage.

Connecting and subscriber lines in case of contact with extraneous voltage should be disconnected from the station equipment using a disconnector (fiber gasket or plug made of insulating material)

Cross-country workers must warn the line electrician about the presence of extraneous voltage on the line. After the damage is eliminated, it is necessary to check the absence of extraneous voltage on the line with a voltage indicator.

On the cards of subscriber overhead lines having intersections with power lines, an appropriate note should be made about this.

4. Labor protection requirements in emergency situations

4.1. Each employee who discovers violations of the requirements of this instruction and labor protection rules or notices a malfunction of the equipment that poses a danger to people is obliged to report this to the immediate supervisor. In cases where a malfunction of the equipment poses a threatening danger to people or the equipment itself, the employee who discovered it is obliged to take measures to terminate the operation of the equipment, and then notify the immediate supervisor about this. Troubleshooting is carried out in compliance with safety requirements.

4.2. If an accident occurs during work, it is necessary to immediately provide first aid to the victim, report the incident to your immediate supervisor and take measures to preserve the situation of the accident, if this is not associated with a danger to life and health of people.

4.3. In case of electric shock, it is necessary to release the victim from the action of the current as soon as possible, in cases of working at height, take measures to prevent him from falling. Switch off the equipment with the help of switches, develop a plug connection, cut the supply wire with a tool with insulating handles. If it is impossible to turn off the equipment quickly enough, other measures must be taken to free the victim from the action of the current. To separate the victim from current-carrying parts or wires, use a stick, board or some other non-conductive object, while the person providing assistance must stand on a dry, non-conductive place, or wear dielectric gloves.

4.4. If a fire occurs in a technical room, you should immediately start extinguishing it with the available means (carbon dioxide fire extinguishers, asbestos blankets, sand) and call the fire brigade on T-01.

4.5. If extraneous voltage is detected at the workplace, it is necessary to immediately stop work and report to the shift supervisor.

4.6. In the event of a power failure while working with a power tool or a break in work, the power tool must be disconnected from the mains.

4.7. If you smell gas, you must immediately call the emergency gas service, inform the management of the enterprise, organize the evacuation of personnel from the ATS building, do not turn on or off the pantographs, and ensure natural ventilation of the room.

5. Labor protection requirements at the end of work

5.1. It is necessary to tidy up the workplace, tools and fixtures.

5.2. Inform the shift worker (shift leader) of all malfunctions noticed during work and the measures taken to eliminate them.

5.3. Clothing must be put away in a designated area.

5.4. Wash your face and hands thoroughly with warm water and soap, rinse your mouth. In the case of work related to soldering, alloys containing lead, it is imperative to neutralize lead with a 1% solution of acetic acid before washing hands.

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