1987 1.2 Document No.8 issued by the Ministry of Electronic Industry (87).

Chapter I General Principles

Article 1 In order to implement the policy of safety first and prevention first, and ensure the safety and health of workers in production, this regulation is formulated according to the Electric Power Safety Regulation issued by the Ministry of Water Resources and Electric Power and in combination with the characteristics of the electronic industry.

Article 2 The operation of power equipment shall be based on safety, and the eight-character policy of "safety, reliability, economy and rationality" shall be fully implemented.

Article 3 All electrical personnel on duty, maintenance, construction and installation, testing, design, competent leaders and technicians must implement this procedure. Non-electrical personnel are prohibited from repairing or disassembling electrical equipment.

Article 4 This procedure is applicable to the power supply and distribution systems below 10 kV and 10 kV. The power supply system above 35kV shall be implemented in accordance with "Electric Safety Work Regulations".

Article 5 When a staff member finds any violation of these regulations, which is enough to endanger the safety of personal equipment, he shall stop it or refuse to carry it out.

Chapter II Basic Requirements for Electrical Safety Work

The first part is the general rules.

Article 6 electrical equipment is divided into high voltage and low voltage. High voltage: the voltage of the equipment to the ground is above 250 volts. Low voltage: the voltage of the equipment to the ground is 250 volts or less.

Article 7 An electrician shall meet the following requirements:

1. Be in good health, and have no diseases that hinder work as determined by doctors;

2. According to the post and the nature of work, have the necessary electrical knowledge, be familiar with the relevant provisions of the state and this regulation, and pass the examination by the competent department;

3. Must be able to get an electric shock first aid and electrical fire prevention and fire extinguishing methods.

Eighth electrical equipment, regardless of whether it is live or not, must be regarded as live if safety technical measures are not taken, and it is not allowed to dismantle or cross the fence at will because of work needs.

Article 9 Power supply equipment, whether the instrument has voltage indication or not, and has not experienced electrification or discharge, is regarded as having electricity.

Tenth approved power outages shall be in accordance with the scope of power outages, and shall not arbitrarily expand the scope of power outages.

Eleventh the so-called operating equipment refers to the equipment that has been fully or partially charged, or can be charged once it is in operation.

Section 2 Substation Duty Work

Twelfth substation personnel on duty, in addition to abide by the provisions of article seventh, should also be familiar with the performance of electrical equipment within the scope of management, primary and secondary drawings, and can skillfully operate and deal with accidents.

Article 13 There shall be no less than 2 persons on duty in each shift of substation. Under special circumstances, only 1 person is left. This person must have the ability to work independently and deal with accidents, and can only monitor the operation of equipment, and may not engage in repair work alone.

Article 14: The main work of the substation attendant is as follows:

1. The monitoring instrument ensures the normal operation of the equipment and correctly and decisively eliminates faults and accidents;

2. Adjust the operation mode, implement safety technical measures and safety organization measures according to tasks such as load, equipment status and maintenance test, and cooperate to complete the operation tasks;

3. Seriously and correctly record the running log and copy the specified forms and statements on time;

4. Do a good job of load regulation and power saving;

5. Make inspection records of equipment defects and equipment maintenance, so as to improve the intact rate of equipment;

6. Keep the fire fighting equipment and common tools in the station;

7. Do a good job in cleaning equipment and workplaces.

Fifteenth shall not enter the substation without approval, foreign visitors and inspectors must register in the station.

Sixteenth duty room should have the following information and instruments:

1. Operation simulation diagram and main wiring diagram of power supply and distribution equipment;

2. Drawings consistent with reality;

3. Qualified ordinary measuring instruments;

4. Temporary lighting tools;

5. Commonly used electrician, locksmith tools and maintenance materials;

6. Qualified safety equipment;

7. Electrical fire fighting equipment.

Seventeenth personnel on duty are not allowed to do things unrelated to the work during the duty hours, and are not allowed to leave their jobs without authorization.

Section III Substation Handover Work

Article 18. Successors should try their best to create favorable conditions for the next shift and do the following work in advance:

1. View the operation simulation diagram;

2. Organize the operation records and the contact business and instructions of superiors and related units;

3. Organize the occurrence and handling records of important operations, faults and accidents of this class, and put forward the work to be done in the next class;

4. Arrange the drawings and instruments. Stored in the duty room;

5. Review and sort out operation tickets and working tickets;

6. Complete the cleaning and hygiene work.

Article 19 The successor shall arrive at the site 10 ~ 15 minutes in advance to know and check the equipment operation in detail.

Twentieth in the following circumstances shall not be handed over:

1. The successor is drunk or the main personnel on duty have not arrived;

2. The successor does not know the situation;

3. During the accident or during the operation of the brake switch. At this time, the work should be given priority to with the personnel on duty, and the successors should assist the work under the unified leadership of the monitor on duty.

Article 2 1 After the handover is clear, the monitor on duty shall sign the duty log.

The fourth quarter patrol and inspection of electrical equipment

Twenty-second patrol inspection generally must be carried out by two people, of which at least 1 person must comply with the provisions of Article 12; The competent technician, shift supervisor and technical director are allowed to patrol and inspect the equipment alone. During patrol and inspection, it is generally not allowed to open the cover bar of electrical equipment for work. If the workload is not large, it is allowed to open the shutter or work across the shutter when the following conditions are met:

1. The charged part is in front of or on one side of the staff;

2. The minimum distance from the human body to the live part is 6 kV and below ≥ 35 cm; 10 kV ≥ 70cm;

3. Good grounding conditions;

4.6 ~ 10 kV system has no single-phase grounding phenomenon.

Twenty-third patrol inspection, should carry common tools, wear insulated shoes, gloves, flashlights and notebooks. , for use.

Twenty-fourth high-voltage equipment grounding, indoor within 4 meters, outdoor within 8 meters shall not be close to the fault point. Personnel within the above range must wear insulated shoes; Wear insulating gloves when touching the equipment shell and frame.

Section 5 pour brake operation

Twenty-fifth switching operation must be carried out according to the order of the power dispatcher or the competent leader, and the guardian should be skilled in technical business. Switching operation should be completed by operators, and each operation ticket can only fill in one operation task.

Article 26 The switching operation sequence is as follows: first close the breaker on the power supply side, then close the breaker on the load side, and finally close the oil switch or air switch with arc extinguishing ability; The power cut-off sequence is opposite to the above. Safe operation with tripping, when sending power, close the edge phase first and the intermediate phase last; On the contrary, the wind direction should also be considered when the power is cut off, and it is forbidden to use the breaker switch without arc extinguishing ability to make it live.

Twenty-seventh the following switching operations must be signed on the operation ticket:

1. Parallel connection and disconnection of transformers in power supply system;

2. 10KV high-voltage equipment has more than two switching operations. (For the above-mentioned important operations, an operation ticket shall be issued by the power dispatcher or the competent technician. )

Twenty-eighth the following operations do not require operation tickets, but a guardian must be present:

1. Stop the single operation of the oil transmission switch or other switches when the power grid load is limited;

2. Accident handling.

Twenty-ninth fill in the brake operation ticket, according to the actual operation simulation diagram, fill in the main contents:

1. Operation task;

2. Sender, receiver, operator and guardian;

3. Switches that should be turned off and on;

4. Protection and automatic devices that should be thrown back;

5. Grounding wires that should be removed and installed;

6. Important maintenance projects;

7. Start time and end time of the operation.

Article 30 the equipment in the process of operation, should check, and check. In the process of execution, the guardian should give orders to the operation ticket, and the operator should execute it accurately. In case of doubt in operation, the operation ticket shall not be changed without authorization, and must be reported to the power dispatcher or the person in charge on duty before operation.

Thirty-first operation tickets should be numbered first and used in the order of numbering, and invalid operation tickets should be marked with the word "invalid"; Operations marked "Implemented". The above operation ticket shall be kept for 3 months.

Chapter III Organizational Measures for Safety Work

Thirty-second organizational measures to ensure safety work include:

1. working ticket system;

2. Work permit system;

3. Work guardianship system;

4. End of work and power transmission system.

The first section working ticket system

Thirty-third the following work should be completed or executed in order:

1. Partial or total power failure;

2. Although the equipment does not need to be powered off, it needs to be covered near the live equipment, and other safety technical organization measures and precautions should be pointed out. Repair equipment need not fill in the working ticket, but the safety technical organization measures should meet the requirements of safety work and have a guardian.

Article 34 the working ticket shall be clearly filled out by the maintenance person in charge with a pen or original ballpoint pen in duplicate, one for the person in charge and one for the person on duty.

Article 35 The working ticket shall be issued by the competent technician or the person in charge of the power department.

Thirty-sixth working ticket in the relevant personnel should bear the responsibility:

1. Work ticket issuer: whether the person in charge of the work is appropriate, whether the work is necessary, and whether the safety technical measures and safety organization measures taken are correct and complete.

2. Person in charge of the work (guardian): organize the work correctly and safely, conduct safety education in combination with the actual situation, and urge and supervise the staff to abide by the safety regulations; Check whether the safety measures in the working ticket are correct and complete, and whether the safety measures taken by the personnel on duty conform to the actual situation on site; Explain safety matters to employees before work.

3. Work permit holder (attendant): responsible for checking whether the safety measures listed in the work permit are correct and complete; Whether the safety measures arranged in the work site are perfect; Check whether there is any danger of sudden call from power-off equipment; If you have any questions about the contents listed in the working ticket, you must ask the working ticket issuer clearly and ask for detailed supplements when necessary.

4. Working class members: care for each other, supervise each other, and work in strict accordance with safety regulations.

Section 2 Work Permit System

Article 37 The work permit (personnel on duty) shall also:

1. In conjunction with the person in charge of the work, go to the site to check the safety measures taken again, and touch the test by hand to prove that the maintenance equipment has no voltage;

2. Point out the location of live equipment and explain the matters needing attention to the working director;

3. Sign the working ticket with the person in charge. After completing the above licensing procedures, you can start work.

Article 38 The person in charge of the work and the holder of the work permit shall not change the safety measures without authorization, and the personnel on duty shall not change the connection mode of the maintenance equipment. If there are special circumstances in the work that need to be changed, the consent of the other party should be obtained in advance.

Article 39 In case of heavy workload and long working hours, all safety measures shall be kept (based on the principle of not interfering with the normal operation of other equipment), and working tickets shall not be issued repeatedly. However, before the next job starts, the person in charge of the job will check with the personnel on duty whether the safety measures are complete before starting the job.

Section 3 Work Guardianship System

Article 40 the person in charge of the work shall clearly explain the work tasks, scope of work, matters needing attention and live parts to all the staff. The person in charge of the work (guardian) must always work at the scene, carefully monitor the safety of the staff, and promptly correct the violations of safety.

Article 41 when the person in charge of the work needs to leave the site temporarily, he shall appoint a guardian to replace him, explain the relevant matters to the substitute, and notify all the staff at the same time.

Forty-second working in two places, the person in charge of the work can assign people with practical experience to work in another place, but they must explain clearly the work tasks and matters needing attention.

Section 4 End of Work and Power Transmission System

Article 43 After the work is finished, the person in charge of the work shall be responsible for checking and cleaning the work site, removing all safety measures, evacuating all personnel, ensuring that the work equipment can safely send electricity, and then going through the work formalities with the personnel on duty.

Article 44 The personnel on duty shall check the working equipment after receiving the application for ending the work put forward by the person in charge of the work, and sign the working ticket with the person in charge of the work after meeting the operation requirements, indicating the end time of the work, and withdraw the working ticket.

Forty-fifth in the working ticket formalities before the end, the personnel on duty shall not be connected to the maintenance equipment. During the work break, if there is an emergency need to send electricity, it must be sent according to the exact notice of the person in charge of the work. All the staff have left the work place, the safety measures have been removed and the electrical equipment meets the requirements.

Article 46 The completed working ticket shall be kept for 3 months.

Chapter IV Technical Measures to Ensure Safety Work

Article 47 when working on all or part of the power equipment, the following safety measures must be completed:

1. Power failure;

2. Check the power;

3. Install the grounding wire;

4. Hang signs and install guardrails.

The above measures should be carried out by the attendant and supervised.

Section 1 Power failure

Article 48 The equipment that must be cut off in the workplace is as follows:

1. Maintenance equipment;

2. Equipment less than 35 cm away from the normal activity range of the staff;

3. The charged part is behind or on both sides of the staff;

4. Live equipment that cannot take necessary safety protection measures and affect the work.

Article 49 In case of power failure, all relevant power supplies must be disconnected, and there must be obvious disconnection points in case of power failure. It is forbidden to switch the isolating knife with load.

Fiftieth power outage range is limited to meet the safety work, and the power outage range shall not be expanded at will. Contact with important power supply units such as water pump station, infirmary and boiler room before power failure to prevent adverse consequences caused by sudden power failure.

The second section electricity inspection

Article 5 1 The test pen must meet the voltage level of the equipment under test. Before using the test pen, it should be tested on live equipment. (Do not touch the charged body when checking electricity with more than 6 kV. ) Make sure that the test pen is in good condition before proceeding. Insulating gloves and boots should be worn when checking electricity. It is not allowed to judge whether there is electricity according to the instructions of voltmeter and signal lamp.

Section 3 Installation of Grounding Wire (including short route)

Article 52 When it is verified that the equipment has no electricity, it shall immediately discharge the maintenance equipment and short-circuit the three-phase grounding. When there are several aspects of work equipment that may call, several groups of grounding wires should be hung. The grounding wire should be hung in the place where the staff can see it, but not in front of the staff to prevent the staff from being burned when making a phone call suddenly.

Article 53 The installation of grounding wire must be carried out by two people. When installing, connect the grounding terminal first, then the conductor terminal, and the contact must be good. The order of removing the grounding wire is contrary to the above provisions. Insulating rods or gloves should be used to install and remove grounding wires.

Article 54 The grounding wire shall meet the requirements of short-circuit current and be made of multiple strands of soft bare copper wire with a cross section of not less than 25mm2. Grounding wire should be numbered and stored in a fixed place.

Section 4 Hanging Signs and Installing Fences

Article 55 On the operating handles of switches and knife switches that can send electricity to the workplace once closed, "No one is allowed to work when closed!" Signboard; If someone is working online, "don't close the door, someone is working online!" " It should be hung on the operating handles of line switches and circuit breakers. The suspension and removal of signs and signs shall be carried out in accordance with the provisions of the operation ticket or working ticket.

Article 56 "No closing, someone working" sign indicates that someone is working on the equipment, and no power transmission is allowed; The "No Shutdown" sign indicates that the running equipment is not allowed to be shut down, and they cannot be used together.

Fifty-seventh when working on high-voltage equipment, the safety distance is not enough, temporary fences should be set up; When working on indoor high-voltage equipment, you should hang "Stop, high-voltage danger!" On the fences on both sides and opposite sides of the workplace, as well as on the aisles that are forbidden to pass. Signboard.

Fifty-eighth staff members are not allowed to take away any safety facilities such as hanging signs, installed fences and grounding wires at will. If the above safety facilities affect his work, he should obtain the consent of the person in charge of the work and the person on duty before changing it.

Chapter V Low-voltage Live Working

Article 59 Working on the live part of equipment or the shell of running electrical equipment is called live working.

Article 60 the voltage level in 6 ~ 10 kV and above equipment are not allowed to be charged, but can be low voltage operation. Live working must be carried out by two people, one working and the other monitoring.

Article 61 When working with electricity, the cuffs should be fastened and safe insulating tools should be used for operation. Hands are not allowed to directly contact charged bodies, and the body is not allowed to contact two phases or the ground at the same time.

Sixty-second people standing on the ground shall not directly transfer objects with live workers.

Sixty-third under the following circumstances, it is forbidden to work with electricity:

1. rainy weather;

2. Explosion-proof, fire-proof and damp places;

3. On the shell of electrical equipment with grounding fault;

4. On the multi-circuit lines erected on the same tower, the lower layer is not cut off, the upper line or the upper layer is not cut off, and there is no safety measure to prevent the upper layer from touching by mistake.

Chapter VI Overhead Lines and Cable Operations

Article 64 When working on overhead lines and cables, there should be safety organization measures and safety technical measures.

Article 65. Check the root of the wooden pole first. 1/3 above decayed or hollow, reinforcement measures should be taken.

Article 66 Before the pole is erected and tamped, it is forbidden to push the pole when the pole root is hollowed out.

Article 67 Before putting on the pole, the staff should check whether the tools such as seat belts, pedals and foot buckles meet the requirements, and wear safety helmets. After selecting the pedal position, fasten your seat belt. Seat belts are not allowed to be tied to cross arms or porcelain bottles. Materials and tools needed on the pole are not allowed to be thrown, but should be hoisted with ropes.

Article 68. When working on poles such as bearing, corner, tension and terminal, check whether they are balanced (especially after disconnection), otherwise there should be temporary stay wires or stay rods to prevent dumping.

Article 69 When rain or thunderstorm is coming, it is forbidden to push poles. People who work on the pole should get off the pole at once.

Article 70 Pay attention to pedestrians and vehicles when paying off and tightening wires on poles, and take protective measures in traffic arteries and crowded places.

Article 71. When breaking ground where cables are buried, it should be approved by the motor vehicle department and supervised by special personnel. The excavated cables should be well protected, and the power supply should be cut off when moving. Care should be taken to prevent the cable from being damaged when working. After the cable glue is cooked, there should be someone to look after it. Staff should wear canvas gloves, shoe covers and protective glasses.

Article 72 Effective anti-virus and fire prevention measures shall be taken in the process of making epoxy resin cable heads and mixing epoxy resin.

Chapter VII Work of Secondary System of High-voltage Equipment

Article seventy-three the relay protection test and instrument calibration shall generally be carried out according to the working ticket after the equipment is cut off.

Article seventy-four the secondary coil of current (voltage) transformer should have a permanent good grounding device.

Article 75. The secondary side of current transformer is not allowed to run in an open circuit, which will endanger personal and equipment safety.

Article 76 Short circuit operation is not allowed on the secondary side of voltage transformer, which will endanger the safety of equipment.

Chapter 8 Work of Power Capacitors

Article 77 When working on power capacitors, the power supply of capacitors must be cut off, safety measures should be taken, and signs should be hung. Before operation, the capacitor should be completely discharged.

Seventy-eighth 380 volt capacitor discharge device must be complete, complete and reliable; The primary circuit of 10 kV capacitor discharge voltage transformer shall not be connected with other equipment.

Chapter IX Temporary Power Supply Device

Article 79 Temporary power supply devices are suitable for installing temporary power facilities of 10 kV and below. Temporary power supply means that due to the urgent need of production, it is impossible to set up formal and permanent power supply facilities, both of which are called temporary power supply.

Eighty temporary power supply must go through the examination and approval procedures, and the user unit shall fill out the Application Form for Temporary Power Supply in triplicate, which shall be examined and approved by the competent department of electric power. The service life of temporary power supply is generally 30 days. Demolition is due. Need to continue to use, must apply for an extension, but the extension shall not exceed 30 days. Otherwise, the competent department of electric power has the right to stop power supply and report it to the factory department for handling.

Article 81 Welding machines, mixers, hoists and on-site lighting used in capital construction projects shall be applied for by the construction department according to the construction period, occupied after approval, and dismantled upon expiration.

Eighty-second temporary power supply lines should use rubber wires with good insulation and integrity, and be laid indoors along the wall, and the height should not be less than 2.5 meters. When crossing the road outdoors, it should not be less than 4.5 meters. It is not allowed to use gas pipes such as heating and water pipes to erect wires. When laying along the ground, reliable protection devices and obvious signs must be installed.

Article 83 Wooden poles and cross arms may be used for overhead lines. In addition to meeting the mechanical strength, the top diameter of wooden poles is generally not less than the following values:

10 kV 150 mm

1 KV or less120mm

Article 84 The cross section of overhead conductors shall not be less than the following table, except for the safe current carrying capacity:

Minimum section unit of overhead conductor: square millimeter

——————————————┬———————————————————————

│ Minimum guide line type section

├——————————┬————————————

10 kv │ 0.4 kv

——————————————┼——————————┼————————————

Copper wire 16 │ 6

——————————————┼——————————┼————————————

Aluminum wire │ 25 │ 10 (multi-strand)

——————————————┼——————————┼————————————

Steel core aluminum wire │ 25 │.

——————————————┴——————————┴————————————

Article 85 when the transformer capacity is less than or equal to 180 KVA, fuse protection can be adopted, and it is equipped with secondary metering. Transformer and its supporting facilities should be protected by fences, and the height of fences should not be less than 2.5m..

Article 86 Low-voltage electric meters and metering devices may be vertical or meter-box. When the shunt is in two or less paths, there is no need to set the main brake.

Eighty-seventh motors and ancillary equipment (such as starters, switches, buttons, etc.). ) For outdoor installation, rainproof measures shall be taken and the installation shall be firm.

Eighty-eighth mobile electrical equipment and appliances, rubber sheathed insulated cord should be used. Switch and socket should be used for power connection. It is forbidden to directly plug the wire into the socket or hang it on the power cord. Motors of 3 kW and above shall be equipped with complete starting equipment and reliable zero connection protection.

Eighty-ninth hand-held electric tools, lanterns and other electrical appliances, should be based on the use of places to take reliable safety protection measures, such as leakage protection appliances or the use of safe voltage below 36V. The safety transformer shall have double coils,

Primary and secondary should be protected by fuses.

Ninetieth temporary lighting and holiday lights installation requirements:

1. Temporary lighting lines in offices, work sheds and on-site should use rubber wires, and the lamps and lanterns should be no less than 2.5m from the ground.

2. The clear distance between the lamp holder and combustible materials should generally not be less than 300mm; The clear distance between spotlights, iodine tungsten lamp and other high-heat lamps and combustible materials should generally not be less than 500mm；;

3. The waterproof lamp holder is used in the open air. When connected with the main line, its contacts should be staggered by more than 50 mm;

4. The minimum section of the conductor of the festival lantern shall not be less than 2. 5 square millimeters, in addition to meeting the safe carrying capacity. The conductor should not be directly stressed, and all supports of the conductor should be installed firmly.

5. Festival lanterns, when the height from the ground is less than 2.5 meters, must use safe voltage.

Chapter X Accident Handling and Management

Article 91 Principles for handling electrical accidents:

1. Limit the development and expansion of the accident as soon as possible, eliminate the root cause of the accident, and eliminate the danger to personnel and equipment;

2. Do everything possible to keep the equipment running;

3. Restore the power-off equipment as soon as possible.

Article 92 The handling of electrical accidents shall be carried out under the centralized and unified leadership of the shift supervisor. During the handling of accidents, the shift supervisor shall stick to his post and organize accident handling.

Article ninety-three when the accident trips the switch, the personnel on duty should check the switch protection system first, and then send a message after it is confirmed. When sending electricity, they should pay attention to whether there are any abnormal changes in instruments and equipment. If there is any abnormal situation, immediately close the switch, find out the reason and properly handle it before sending. When the oil switch is disconnected for three times, the contact should be removed immediately.

Article ninety-four when the transformer is overloaded and the temperature rises, the personnel on duty should immediately switch the load or put into standby transformer to ensure normal power supply.

Article ninety-five when there is a high voltage single-phase grounding signal, the personnel on duty should quickly find the grounding point according to the signal reflection and handle it in time. During the ground fault finding, the equipment can continue to operate, but the non-fault relative ground voltage will increase by 3[ 1/2] times, and the personnel on duty should closely monitor the equipment operation to prevent the accident from expanding.

Article 96 After an accident, the personnel on duty shall immediately report the situation to the person in charge while handling the accident.

Article ninety-seven after the accident treatment, should fill in the accident report, signed by the shift supervisor, a copy to the electrical department, a copy to the production department. The main contents are as follows:

1. The time and place of the accident, the name of the equipment and the whole process of handling the accident;

2. The scope and time of equipment damage, power failure and the time to resume power transmission;

3. Direct economic losses caused by the accident;

4. Identification of protective equipment actions;

5. Accident analysis and future countermeasures;

6. The name of the person handling the accident and the name of the person filling out the report.

Chapter II XI Supplementary Provisions

Article 98 Where these provisions are inconsistent with the provisions of the state, the provisions of the state shall prevail.

Article 99 The Ministry of Electronic Industry shall be responsible for the interpretation and revision of these Provisions.

Article 100 These Regulations shall come into force as of the date of promulgation.

Additional record