The present invention relates to a cable intermediate joint protection device, and more specifically, it relates to a cable intermediate joint protection box, the technical solution of which is as follows: it includes a cylindrical shell and sealing rings arranged at both. The present invention relates to a cable intermediate joint protection device, and more specifically, it relates to a cable intermediate joint protection box, the technical solution of which is as follows: it includes a cylindrical shell and sealing rings arranged at both. Mainly suitable for intermediate connection of cables. After the intermediate joint is made, a layer of protection is added here to protect the intermediate joint. In rooms with good environmental conditions, use empty shells and use sealing materials for sealing at both ends. Indoors or. This product has a simple design structure and easy installation, and can be applied to the protection of cable intermediate joints below 35kV voltage level; The whole is a non-metallic insulating material FRP, which is safe and reliable for long-term use; It can achieve flame retardant FH1 level. In response to these problems, the company has developed a cable intermediate joint box with fireproof, waterproof and explosion-proof functions to provide all-round protection. IS cables should have elastomeric or thermoplastic insulation with a minimum thickness of 0. The conductors, includes the individual strands of finely. The National Electrical Code (NEC), published as NFPA 70, sets minimum safety standards for electrical junction boxes in residential and commercial buildings.
