Operation instruction for replacing overhead groun

Operation instructions for replacing overhead ground wire clamps for 110kV lines

this instruction is applicable to the outage maintenance of replacing overhead ground wire clamps for 110kV lines in Beichen power supply branch of Tianjin electric power company

2 reference document

power safety work procedures of State Grid Corporation of China (power lines)

GBJ 233-90 code for construction and acceptance of 110 ~ 500kV overhead power lines

GBJ 50312-200 code for construction and acceptance of 110 ~ 500kV overhead power transmission lines

DL/T 5092-1999 technical specification for design of 110 ~ 500kV overhead power transmission lines Beijing Municipal Commission of housing and urban rural development once conducted special sampling inspection on insulation materials in old residential areas

DL/T 741-2001 operation specification for overhead transmission lines

DL/T 5009.2-2004 safety work specification for electric power construction part II: Operation Specification for overhead power lines

operation specification for 110 (66) kv-500kv overhead transmission lines of state Grid Corporation of China

Maintenance specification for 110 (66) kv-500kv overhead transmission lines of State Grid Corporation of China

operation specification for overhead transmission lines of Tianjin electric power company of Tianjin electric power company

3 preparation before repair

arrangement of preparation work

investigate the site, understand the crossing, parallel lines, whether there are obstacles that affect the operation, and be familiar with the on-site working environment; Consult the data related to the operation line, understand and master all kinds of data required, and be familiar with the line equipment and parameters

the operators participating in the operation are familiar with their work contents, process standards and safety measures to be taken in this operation. The tools and instruments pass the test and meet the requirements of this operation

falling from high altitude: when climbing the pole and tower, the foot nails are loose or the feet are not firmly grasped; The safety belt is not fastened on the firm member or the buckle is not fastened properly after the safety belt is fastened; Loss of safety belt protection during transposition of work on the tower may lead to high-altitude fall

ground wire falling off: improper operation may lead to wire falling off. When crossing various lines, highways and railways, double protective measures of defense line falling off must be taken, and sufficient strength should be provided, for the crossed live lines, If necessary, contact the power failure before operation

failure of tools and instruments: improper maintenance or use of tools and instruments may lead to failure, and the new development needs of lithium batteries are put forward by the employed new energy vehicles: 1. The high-temperature, low-temperature, charging and discharging 1-induced instruments should be regularly checked and tested, and must be checked by a specially assigned person before use to ensure that they are qualified, matched, flexible and easy to use

1. When climbing the pole and tower, pay attention to check whether the foot nails are complete, firm and reliable

2. The safety belt should be tied to the firm components of the tower to prevent the safety belt from being broken down and cut by sharp objects. Check whether the buckle is fastened after fastening the safety belt. When transferring the operation position on the tower, the safety belt protection shall not be lost, and the staff on the tower shall fasten the safety belt and outgoing safety rope

1 Site personnel must wear safety helmets

2. Operators on poles and towers should prevent things from falling, and the tools, instruments, materials, etc. used should be packed in tool bags. And use ropes to transfer. Don't throw it around. The rope buckle should be tied firmly. The transfer personnel should leave the heavy objects, which is very important for the design of safe and reliable products. People are forbidden to approach or stay under the tower and under the operation point

in case of thunderstorm, strong wind or other situations threatening the safety of personnel and equipment during the maintenance process, the person in charge of the work can implement the work interruption system and take necessary safety technical measures