Environment-friendly transmission line sheath

Abstract

The invention discloses an environment-friendly transmission line sheath, which belongs to the field of cable sheaths and is used for transmission line protection. The environment-friendly transmission line sheath comprises the following components in parts by weight: 35-40 parts of metallocene polyethylene, 30-40 parts of ethylene propylene diene monomer rubber, 20-30 parts of chlorinated polyvinyl chloride resin, 2-5 parts of maleic anhydride graft EVA (ethylene-vinyl acetate), 2-3 parts of aluminum hydroxide micropowder, 0.5-1 part of barium stearate and 2-4 parts of antioxidant PS802. According to the technical scheme, the environment-friendly transmission line sheath can overcome the defect of toxic and harmful gas generated in the PVC (polyvinyl chloride) material combustion process, and can avoid the problems of damage and shedding of the graphite layer on the high-tension transmission line.

Description

technical field [0001] The invention belongs to the field of cable sheaths, and in particular relates to an environment-friendly power transmission line sheath. Background technique [0002] When the cable is in use, a flame-retardant sheath material is added to the outer layer to prevent the cable from accumulating a large amount of heat and causing a fire. The sheath material of high-voltage cables is generally made of materials with high insulation resistance. In actual use, graphite is generally coated on the sheath layer for discharge, but it is easy to damage and fall off during cable laying, polluting the surrounding environment, and seriously It affects the normal detection in the cable installation process and causes a lot of troubles to manufacturers and users. And we have noticed that although these cable sheaths contain PVC and other materials for reinforcement, these materials will produce a lot of smoke during combustion, which not only contains harmful substa...

AI Technical Summary

Problems solved by technology

The sheath material of high-voltage cables is generally made of materials with high insulation resistance. In actual use, graphite is generally coated on the sheath layer for discharge, but it is easy to damage and fall off during cable laying, polluting the surrounding environment, and seriously Affect the normal detection during the cable installation process, causing a lot of trouble to manufacturers and users

And we have noticed that although these cable sheaths are reinforced with PVC and other materials, these materials will produce a lot of smoke during combustion, which not only contains harmful substances but also may cause people to suffocate