Why is the Cable Joint of 15kV American Cable Branch Box fully Insulated or Semi Insulated?

Cable joints are completely insulated or semi insulated, and some live parts may be exposed, so it is necessary to cooperate with insulation protection caps.

Ensure the safety of personnel

In the power system, personnel safety is crucial, the working voltage of the 15kV American Cable Branch Box is 15kV, which belongs to the high voltage category, if the cable joint is not insulated or has poor insulation performance, once the human body accidentally comes into contact with the live part, it will instantly cause an electric shock accident, posing a serious threat to the safety of personnel's livesm, the use of fully insulated or semi insulated cable joints can effectively isolate live parts from the outside world.

Adapt to complex environments

The 15kV American Cable Branch Box is suitable for a variety of complex environments, with a working temperature range of -30 ℃~+50 ℃, it also needs to deal with humidity, dust, salt pollution, and other situations. Some models can even be immersed in water for 24 hours without affecting use. In humid environments, moisture is prone to adhere to cable joints, if the insulation of the joint is poor, moisture may cause a decrease in electrical performance, leading to faults such as leakage and short circuits, the insulation material of fully insulated or semi insulated cable joints has good moisture resistance, which can effectively prevent moisture from entering and maintain the normal operation of cable joints.

Reduce line failure rate

Fully insulated or semi insulated cable joints can reduce the impact of external factors on the connection parts of the 15kV American Cable Branch Box, during long-term operation, cables may be subjected to various factors such as thermal expansion and contraction, electromagnetic forces, etc., which may cause looseness at cable joints, semi insulated or fully insulated structures can buffer these external forces to a certain extent, and due to their good sealing performance, they can prevent external impurities from entering the interior of the joint, avoiding problems such as partial discharge and short circuit caused by impurities, thereby reducing the line failure rate.