Tin plated copper for wires and cables

Tinned copper refers to copper coated with a thin layer of metallic tin on the surface, such as tinned copper wire, which has certain applications in the processing and manufacturing of cables.

What are the advantages of bare copper wire compared to tinned copper wire?

1. The main purpose of tinning copper wires is to prevent copper from being oxidized and forming a film - copper green (chemical formula CU2 (OH) 2CO3) when exposed to air. Copper green has poor conductivity, which increases resistance. Tinned copper wire can prevent oxidation-reduction reactions and produce copper green; Can increase heat dissipation; It can improve conductivity and wire performance；2. Tin plating on copper wires can also prevent the insulation rubber from sticking, the wire core from turning black and brittle, and improve its solderability. Tinned copper wire is mainly used as a conductive core for rubber insulated mining cables, silicone wires, Teflon wires, and marine cables, as well as as as as an external shielding braid and brush wire for cables.

What is the purpose of tinning cable conductors?

The purpose of tinning, silver plating (or even gold plating) on wire and cable conductors is to prevent copper wires from oxidizing and blackening during high temperature and humidity, and to improve the solderability and reliability of the conductors. The common conductor material is copper. We all know that copper includes bare copper (also known as brass or red copper), tinned copper, silver plated copper wire, etc. These types are essentially copper, but with other substances plated on the surface. There are copper clad aluminum and copper clad newly made conductors on the market now. If the electrical performance requirements are high, copper is naturally good. The environmental protection of conductors mainly requires the absence of heavy metals (RoHS). The materials include insulation materials, conductor materials, and shielding materials. Insulation such as polyvinyl chloride (PVC), irradiated cross-linked polyvinyl chloride (XL-PVC), irradiated cross-linked polyethylene (XL-PE), low smoke and halogen-free (Halogen free), silicone rubber, Teflon telflon, etc. So tin plating on cable conductors will protect the cable, making it more durable, extending its lifespan, and more in line with the usage requirements of some special occasions.