How to quickly identify the authenticity of high temperature wire and cable

      The quality of high-temperature wire is directly related to the user's electricity safety, therefore, when buying or choosing, how to accurately check and quickly identify the authenticity of high-temperature wire and cable, is a skill that users must master. Ltd. to introduce a number of high-temperature wire and cable unqualified performance, to facilitate rapid identification of authenticity.

    1, the conductor DC resistance exceeds the standard. Wire and cable copper conductors should use high purity electrolytic copper, such materials pulled out of the wire uniform and lustrous. Some use recycled copper production enterprises to obtain high profits, or cut corners to reduce the copper area, resulting in line conductor resistance seriously exceeded.

2, insulation and sheathing materials should be suitable for mechanical properties (tensile strength, elongation at break) indicators are not qualified. Part of the wire and cable insulation and sheathing materials should be used recycled plastic, its tensile strength and elongation at break can not meet the use of requirements. The cable is prone to fracture mechanical processes and bare charged conductors, which can cause short circuits and leakage discharges.

3, high-voltage cable insulation thermal extension project failed. The insulation thermal extension of individual products appeared to fuse, which is prone to cause short-circuit accidents under high temperature conditions.