GB 26860-2011Safety code of electric power industry - Electric part of power plants and transformer substations (English PDF)

4.1 Staff

4.1.1 physician identified, without prejudice to working condition (medical examination at least once every two years).

4.1.2 have the necessary safety knowledge and skills of personnel engaged in electrical work should have a shock first aid rescue method.

4.1.3 have the necessary electrical knowledge and business skills, familiar with the electrical equipment and systems.

4.2 Job site

4.2.1 job site production conditions, safety, work tools and safety equipment shall comply with the national standards or industry requirements, Safety equipment and labor protection products before use should be qualified available.

4.2.2 appropriate breaks and construction vehicles often working on someone with first aid kits, first aid supplies store, and designate a person check, supplement or replace.

4.3 Job measures

4.3.1 should work to ensure the safety of electrical equipment on the institutional measures may include job applications, work arrangement, written security requirements, work Licensing, monitoring work, and the work stopped, and the end of the transfer and other procedures.

4.3.2 carry out all or part of power outage work on electrical equipment, equipment operation and maintenance unit should be made to apply power outages by scheduling Need of competent jurisdiction to apply in advance outage scheduling mechanism, arrangements for maintenance work only after consent.

4.3.3 repair work should be carried out before the work is arranged, clear place of work, tasks, responsible person, work environment, work programs and books Surface safety requirements, division of tasks and working class members.

4.4 Other Requirements

4.4.1 The workers should be informed of their risk factors and preventive measures exist job site.

4.4.2 found directly endanger the safety of emergency, the scene shall have the authority to stop work and to organize the evacuation job site.

5.1 General Requirements

5.1.1 Safety Measures Organization as one of the measures to ensure the safety of the system, including job tickets, work permits, monitoring, intermittent, transfer and termination Wait. Job ticket issuer, who is responsible for the work (guardian), work permits who dedicated guardians and members of the working class should be the entire job process To fulfill their security responsibilities.

5.1.2 job ticket is one written permission of the safety requirements for electrical equipment on the job can contain number, place of work, job content, plan Working hours, work permit time, the end of the work time, the scope of power and safety measures, and work ticket issuer, work permits people workload Responsibility and working class members and so on.

5.1.3 In addition to working with the ticket Required fields work, the other may be given orally or by telephone command mode.

5.2 Job Ticket types

5.2.1 requires all high-voltage power equipment, and some power outages or security measures do work, filled with a first electrical work sheet (see Appendix A).

5.2.2 Table 1 is greater than the safe distance from energized equipment related sites and work on the housing and the impossibility of contact with live conductive parts of the equipment Work, filled with a second electrical work sheet (see Appendix B). Table 1 safe distance from the device does not power failure Voltage level kV safe distance 10 and below 0.70 20,35 1.00 66,110 1.50 220 3.00 330 4.00 500 5.00 750 7.20 1000 8.70 ± 50 and below 1.50 ± 500 6.00 ± 660 8.40 ± 800

5.5 Work Permit

5.5.1 Upon completion of work permits in the construction job site safety measures, should complete the following procedures.

a) in conjunction with the responsible person to inspect the security measures made again;

b) the person in charge of the work specified in live equipment location and considerations;

c) in conjunction with the responsible people are confirmed on the work sheet, signature.

5.5.2 work permit either party responsible person, work permits people should not be allowed to change security measures.

5.5.3 live working responsible person in charge before work begins, the unit should maintain or duty dispatcher and equipment operation and performance of contact For licensing procedures, after the end of the live working should be promptly reported.

5.6 Working guardianship

5.6.1 Work Permit, responsible person, dedicated members account guardian should work shift work content and on-site security measures. Work shift After members perform confirmation procedures before beginning work.

5.6.2 responsible person, dedicated guardian should always be at the job site, the work of the members of the class monitor. Responsible person in the whole blackout , You can participate in the work shift work; partial blackout, only if the security measures and reliable person in one place of work, will not mistakenly hit an electric unit The case points before taking part in the work.

5.6.3 work ticket issuer or the responsible person should be based on security conditions in the field, the scope of work, work needs and other specific circumstances, additional special Responsible guardian and determines guardianship personnel.

5.7 Work intermittently, transfer and termination

5.7.1 When work stopped, working class members should withdraw from the job site, all the security measures remain unchanged. When the next day to return to work should get work Licensee's license, and the responsible person should re-examine safety measures. It should be under the responsible person or guardians, led by dedicated staff Enter the workplace.

5.7.2 During work interruption, if an urgent need, operator can switch on power transmission in the case where the ticket is not returned to work, but should first inform workers As a responsible person in the class get to work all the staff have left the workplace can reply transmission and take the necessary measures to not perform.

5.7.3 before the end of repair work, please contact the device again applied operating voltage, according to the following requirements.

a) all staff to evacuate the workplace;

b) to recover all the work ticket system, remove the temporary cover bar, ground and badges, restore permanent cover bar;

c) shall be responsible for and operating personnel after a comprehensive check and correct, run by the personnel pressor test.

5.7.4 When the same electrical connections sequentially transferred to work in several duty stations, Staff responsible person should explain charged Fan Wai, safety measures and precautions.

5.7.5 After all the work is completed, the responsible person should run the repair personnel to explain the status of projects, test results, findings and untreated The problems, together with operating personnel check the device status, the status, fill out the work on the work sheet end time, said after the signature by both workers For tickets to an end.

5.7.6 Except as provided in

5.7.2 given, but only after all the work the ticket the same power system are the end and get on duty dispatcher or shipped After the row attendant licensing instructions before switch on power transmission.

6.1 General Requirements

6.1.1 work on electrical equipment, should have power outages, electrical inspection, installation of ground wire, hanging badges and provided cover bar (fence), etc. to ensure the safety of Technical measures.

6.1.2 work on the electrical equipment to ensure the safety of technical measures performed by the operating personnel or qualified operating personnel. Insulation

6.1.3 Work safety equipment used should meet the requirements of Appendix E.

6.2 Blackout

6.2.1 conforms to the device the following circumstances should a power outage.

a) maintenance equipment; Specified in Table 2 of the device

b) staff working at a distance of less than;

c) from the staff and equipment of more than 35kV and below the safety distance specified in Table 2, but less than the safety distance specified in Table 1, At the same time nor insulating device partitions, safety cover bar and other measures;

d) portion adjacent staff charged, and no reliable security equipment;

e) Other required power equipment. Table 2 people working in a safe distance from live parts of the device Voltage level kV safe distance 10 and below 0.35 20,35 0.60 66,110 1.50 220 3.00 330 4.00 500 5.00 750 8.00 1000 9.50 ± 50 and below 1.50 ± 500 6.80 ± 660 9.00 ± 800

6.4 Grounding

6.4.1 installation of ground wire should not be a single person.

6.4.2 the body should not touch ungrounded conductor.

6.4.3 When the equipment does not verify that the voltage on, should immediately repair equipment ground (or co-installed ground wire grounding switch) and three-phase short circuit. cable And should gradually phase fully discharge before grounding capacitor neutral point of a star-connected capacitors should be grounded.

6.4.4 possible transmission to each side of the power equipment should be grounded.

6.4.5 assembly and disassembly of the grounding line conductors with insulated rod end, the body should not touch the ground.

6.4.6 do not apply the method of winding to ground or shorted.

6.4.7 Three-phase short-circuit ground wire grounding wire, if using a split-phase grounding wire, three-phase should be set to one of the ground.

6.4.8 Complete grounding wire should have a transparent sheath of multi-strand copper wire and clamp composition dedicated grounding line section not less than 25mm2, and Installation location should meet the requirements of the short-circuit current.

6.4.9 When installed ground wire, grounding terminal should be installed after the attachment end of the conductor, grounding wire should be good contact, reliable connection. Remove ground wire cis Order to the contrary.

6.4.10 on power distribution equipment, grounding wire should be installed in the appropriate parts of the conductive portion of the apparatus.

6.4.11 already installed ground wire to oscillate, its distance from the live parts do not meet the safety distance requirements, measures should be taken.

6.4.12 In the frame of the door-type line side power outage maintenance, such as distance from the work site and the installed ground wire or grounding switch is less than 10m, work Although the location outside the ground, or not to install another ground.

6.4.13 work in high-pressure back on the road, need to remove the portion of the ground wire should obtain licenses or operating personnel on duty dispatcher. After the work is completed Immediately restored.

6.4.14 because when parallel or near energized equipment maintenance equipment may cause an induced voltage should be installed ground wire or use personal security lines.

6.5 Suspension nameplate and fitted cover bar

6.5.1 to power transmission in a workplace through to closing the isolation switch operating handle should hang "DO NOT TURN, some work" or "ban Stop closing, the line was working "on the lanes.

6.5.2 Operation at the isolation switch on the computer screen operation should be set to "DO NOT TURN, some work" or "DO NOT TURN line there Labeled human work ".

6.5.3 partial outage work, staff and security, not power equipment distance does not meet the specified in Table 1 should be provided temporary cover bar, with belt Tram section shall comply with the provisions of Table 2. Temporary cover bar should be installed securely, and fly the "stop, high risk" on the lanes. 35kV And insulating spacers of the following devices are available in direct contact with live parts in place a temporary cover bar.

6.5.4 to work on high-voltage equipment indoors, cover bar on both sides should be in the workplace and equipment contralateral run interval and closed to traffic aisles cover On bar suspension "stop, high risk" on the lanes.

6.5.5 High Voltage Switchgear Handcart swi...

9.30

Note 1. The table listed voltage level by a high-speed voltage levels safe distance.

Note 2. 13.8kV a safe distance from the implementation of 10kV.

Note 3. 750kV data are corrected altitude 2000m, 1000m above sea level by other levels of data correction.

5.2.3 live or work with live equipment is less than the distance specified in Table 1, but are not safe distance from power by charging work practices undertaken fill Working with the job ticket electrically charged (see Appendix C).

5.2.4 accident emergency repair work using a single emergency repairs (see Appendix D) or job ticket. Accident repair work should be carried out using non-continuous Work sheet.

5.3 work filled with votes

5.3.1 The work should use a unified ticket coupon format.

5.3.2 If these devices at the same stop, power transmission, can be filled with a first electrical work ticket.

a) belong to the same voltage level, place in the same plane, the work does not touch a live conductor of several electrical connections;

b) a transformer outage maintenance, but also with its circuit breaker overhaul;

c) station blackout.

Note 1. The AC system is a part of the electrical connection means isolating switches available with other electrical devices separate parts.

Note 2. The current system is an electrical connection, refer to bipolar converter transformer and disable all high-voltage DC device, change or disable pole unipolar runtime Transformer, valve hall, DC field equipment, cooling system (bipolar public areas of operation of the device).

5.3.3 the same electrical substation same (including power plants booster station and converter station, the same below) on several internal electrical connection performed sequentially Pressure level, the same type of work without power, can be filled with a second electrical work ticket.

10.10

Note 1. The table listed voltage level by a high-speed voltage levels safe distance.

Note 2. 13.8kV a safe distance from the implementation of 10kV.

Note 3. 750kV data are corrected altitude 2000m, 1000m above sea level by other levels of data correction. Each end of the device

6.2.2 power should be obvious break point, or should be able to reflect other electrical and mechanical equipment operating status indication and should not be in Only by working off the circuit breaker on the power supply equipment.

6.2.3 Disconnect each side of the power equipment circuit breakers, disconnectors and control power switch on energy, the latch operating mechanism isolating switch.

6.2.4 High Voltage Switchgear Handcart switch should be pulled up to the "test" or "maintenance" position.

6.3 electrical test

6.3.1 Direct should use the appropriate electrical inspection electroscope voltage level at the ground of the device-by-phase electrical inspection. Former electrical inspection electroscope should first electric Confirmed electroscope well on the device. When bad weather conditions, outdoor equipment and other electrical equipment can not directly test can be indirect electrical inspection. 330kV and above electrical equipment may be indirect electrical inspection electrical inspection methods.

6.3.2 examine the electrical high-voltage insulated gloves should be worn from the body with the electrical inspection equipment shall comply with the safety distance requirements in Table 1.