1. Prevent leakage grounding
In most cases, the leakage of low-voltage cables is caused by mechanical damage and improper operation, so the itinerant inspection system should be strictly implemented. The explosion-proof conditions of wiring, whether the draping meets the requirements, etc., should be checked in detail and recorded. Only when every link is done well can the safety of the cable be guaranteed.
2. Cable short circuit
Cable short circuit is very dangerous and may lead to firing failure of armored cable. There are generally three main reasons, one is improper treatment of cable head, wear, insulation, process does not meet the requirements, prone to accidents. Secondly, armored steel has a crack, easy to cause a short circuit due to the entry of moisture. Third, the copper core is connected with the aluminum core, which is not allowed, because the lifting resistance is too large, which can easily lead to cable short circuit accident.
Because of the above reasons, we must strictly follow the production process, each link is in line with the national standards, to check to ensure that the armored steel belt is intact. In addition, avoid copper and aluminum connection, because copper and aluminum resistance is different, it is easy to form a local high temperature at the connection, causing a short circuit. These are the two most serious problems, of course there are many, such as storage, transportation, movement, etc., there are measures to protect the cable. Safety is no trivial matter, all aspects should be seriously dealt with to ensure our electricity safety.
