Precautions for operation and maintenance of power cables of Zhengzhou YJV Cable Co., Ltd

  　　  Points for attention in the operation and maintenance of power cables of Zhengzhou first cable Co
, Ltd
The operation of power cable line is extremely important in the whole power production link, because the operation safety of cable line is directly related to the production safety of enterprises and the safety of people's lives and property
Therefore, it is very important to understand the operation and maintenance of power cables and lines In the power industry, the so-called cable line actually refers to the line for cable transmission of electric energy
Generally, it is composed of cable, cable intermediate joint, electric line end, etc
, including laying related projects, such as cable trench, pipe row, shaft, tunnel, etc
according to different geographical environment and different construction requirements, the cable line will be adjusted according to local conditions Compared with overhead lines, cable lines have many advantages
One is that they are not affected by natural disasters, such as heavy rain and snow
Cable lines can better isolate the influence of these factors
The second is to make the city look cleaner
The cable line construction will not be disturbed by the trees along the city
It can beautify the city and avoid the risk of electric shock to the urban people In contrast to China, Japan has a lot of overhead power lines
We can observe from both animation and Japanese dramas that there are many lines over the streets and cities in Japan, which looks very untidy
However, Japan has to do so because Japan has frequent earthquakes, underground cable lines are very vulnerable to damage, and the maintenance cycle will be very long, In this way, the overhead line in Japan is more affordable and convenient After understanding the concept of cable line, let's talk about the precautions for the operation of cable line
First, the line should not operate under load for a long time, because this will make the temperature of the line abnormal, damage the line and reduce the service life of the line
Secondly, the feeder protection of cable line shall not be put into reclosing
After the feeder of the cable line trips, do not ignore the inspection of the cable, and it should be noted that the cable line must be retested before it can be put into use when it resumes operation after it is out of service In terms of line maintenance, it is mainly to do a good job in three aspects: load monitoring, cable metal sleeve corrosion monitoring and insulation monitoring, so as to keep the cable equipment in good condition and prevent cable accidents