Wires and cables are now used in many places and have been widely used. Everyone will also want to know more about some aspects of it, so for a manufacturer specializing in the production of wires and cables, it is very necessary to introduce the knowledge points about wires and cables to everyone.
- The role of metal braid: There are two main types of metal braid: steel wire braid and copper wire braid. Let’s talk about the functions of these two different braids.
- The main functions of steel wire weaving are: mechanical protection. For example, marine power cable cf31. At the same time, it can also play the role of magnetic field shielding. Withstand breaking forces, such as magnetic survey cables WC- GC and WCT for marine geological exploration.
- The main function of copper wire braiding: is the shielding function of safety protection. Braided copper wire outside the main core insulation, good contact with the ground core or used as a ground wire, can reflect the leakage situation in time. It can also eliminate the shielding effect of the surface potential of the power cable and can bundle the power line to eliminate induced electricity, such as the overall shielding of high-voltage cables. Shielding effect on electromagnetic interference, such as blue cable braided by tinned copper wire and control cable braided by copper wire, etc.
- The role of the fiber braided layer: For wires, a fiber braided layer is a form of its light protective layer. Its main function is to protect the insulation from being eroded by various light, heat, low temperature, acid-base gas, etc., and damage by external mechanical force, and to ensure the safe operation of the wire. For cables and fiber braids, they are often in the middle of the protective layer to enhance the tear resistance of the protective layer. Sheath strength.