Flexible vinyl dedicated to wire and cable

Abstract

A soft polyviny chloride plastic for electric transmission line or cable is proportionally prepared from PVC resin, refractory plasticizer, stabilizer, antioxidizing agent, filler and lubricant. Its advantages are high refractory class (120deg.C), long high-temp stabilizing duration (300 min), and low high-temp volatilization.

Description

technical field

[0001] The invention belongs to the wire and cable insulating material among industrial polymer materials, and more specifically relates to a special heat-resistant soft polyvinyl chloride plastic used for wires and cables. Background technique

[0002] The copper conductor of the wire and cable needs to transmit electric energy and load a certain amount of current, and at the same time, the copper wire generates a higher temperature during operation. When the cross-sectional area of ​​the copper conductor is constant, the larger the current transmitted, the higher the temperature generated, so there is a heat resistance requirement for the insulation material of the wire and cable; according to the size of the transmitted current, different temperatures are generated, so the insulation Materials have different heat resistance requirements, so that they can maintain good mechanical and physical properties under long-term high temperature to meet the requireme...

Images