Functions of explosion-proof flexible hoses and material selection
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Hello everyone, I have a question: what is the purpose of the explosion-proof flexible connection tubes for the motor cables entering Class A and Class B production workshops? What is the basis for selecting the material of explosion-proof flexible connectors? Thank you all first; I appreciate your guidance.
Its function is to prevent explosions and protect cables; for details, refer to the cable wiring standards
The function of the explosion-proof winding tube combined with a gland is to provide explosion protection, to safeguard the cable from mechanical damage, and to protect it against termites and corrosion. The latest explosion-proof solution involves the use of an explosion-proof gland in a tubular format (for cable entry) together with a flexible hose. . With a 2-second installation time, it is more practical than the explosion-proof wire gland solution in terms of both installation and maintenance.
Classified by material: PVC-sheathed explosion-proof flexible connection pipes, rubber tube explosion-proof flexible connection pipes, stainless steel explosion-proof flexible connection pipes, resistant to fire, oil, corrosion, water, wear, and aging
Since money isn’t a concern, it is recommended to use a stainless steel wire mesh directly
Please refer to the standard: JB 9600-1999 Explosion-proof flexible connection pipes
In explosion-proof areas, explosion-proof flexible hoses serve both to protect cables and to provide sealing, ensuring that sparks generated inside the junction box do not come into contact with the gases in the external explosion-proof area for a short period of time.