Fire Protection Method For Cable Waterproof Joints

Many times, cables need to be laid underground or in water. In order to prevent moisture and water droplets from affecting the safe use of electrical appliances, fire protection needs to be done. What are the current fire protection methods?

From the current cable fire situation, most of them occur at Nylon Cable Gland, because the cable connection part is the weakest part of the entire cable. Once the temperature of the electrical waterproof joint connection part is too high during use, it is very likely to cause the cable to short-circuit, short-circuit, or even explode.

Nowadays, many areas have put forward higher requirements for fire protection when laying cables, requiring that if one cable has a problem, the other cables should not be affected.

Many times, cables are laid underground or in water, often with poor ventilation and humid environment. In order to prevent the cable waterproof joint from getting damp and affecting the insulation, a fire protection box will be installed at the place where the cable waterproof joint is installed to isolate the joint part from the upper and lower cable layers. However, the fire protection box will affect the heat dissipation of the joint and cause the joint connection to heat up.

At present, there are several fire protection methods for cable waterproof joints, one of which is to install an explosion-proof temperature and humidity sensor, and use the sensor to detect the temperature and humidity in the fire protection box.

This method is more suitable for use in relatively humid environments. It can meet the heat dissipation requirements of cable waterproof joints. When an explosion is likely to occur at the joint, it can release energy in a timely manner and effectively prevent the spread of accidents.