In cases where it's difficult to connect the electrical equipment's incoming line port with steel pipes, you can install a flame-proof flexible connecting pipe.

2. Electrical equipment with vibrating entry ports, such as explosion-proof motors, are easily connected with steel pipes; however, due to the vibration they produce during operation, the joints in the steel pipe wiring are prone to loosen. Therefore, explosion-proof motors must be equipped with explosion-proof flexible connection pipes for their entry ports.

3. As the防爆fluorescent lamps require removing one end of the lamp to change the tube or the starter, when using steel pipe wiring, the entry port must also be fitted with an explosion-proof flexible connection pipe.

When the pipeline of steel pipes involves complex bends or passes through expansion joints or settlement joints in buildings, flexible explosion-proof joints must be installed.