The explosion-proof straight junction box, also known as the explosion-proof two-way junction box, is used for connecting heating cables in explosion-proof or damp areas. It extends the safe operating length of the heating cables and allows for repair in case the cables are damaged. It is designed and manufactured according to the increased safety type requirements for explosion-proof electrical equipment. This type of junction box is used in Zone 1 and Zone 2 explosive gas environments in factories.