Check and maintain power distribution cabinets, power transmission lines, and lightning protection grounding system
Check and maintain power distribution cabinet and transmission line
Check whether the instrument, switch and fuse of the power distribution cabinet is damaged, whether the contact of each component is loose, heating and burning phenomenon, whether the leakage protector action is sensitive and reliable, whether the contact of the contact switch is damaged.
The maintenance of the distribution cabinet mainly includes regular cleaning of the distribution cabinet, repair and replacement of damaged parts and instruments; Replace and tighten the wiring terminals of each component; The corroded parts of the box should be cleaned in time and coated with anti-rust paint.
Regular inspection of the main and branch lines of power transmission lines to avoid dropping lines, connecting lines, vertical lines, walls and other phenomena; There shall be no phenomenon of stealing electricity; Check incoming line and customer electricity meter regularly.
Check and maintain the lightning protection grounding system
(1) The grounding system should be checked and maintained before the thunderstorm season every year, mainly to check whether the link is tight and the contact is good, If there is any abnormality on the ground near the grounding body, dig the ground to spot check the corrosion of the underground concealed part if necessary. If any problem is found, it should be handled in time.
(2) The grounding resistance of the grounding network should be measured once a year.
(3) Before the annual thunderstorm season, the arrester in operation should be tested once using the arrester component aging tester.
Monitoring and testing system inspection
Large photovoltaic power stations have perfect monitoring and detection systems. All parameters related to power station operation will be summarized through RS485 communication and displayed through the display system practice.