Bare wire and cable products analysis

Bare wires and bare conductor products mean the only conductor without insulation cable products. Mainly used for overhead transmission and distribution lines and electrical equipment in the conductive element, when used, generally air as insulation.

According to the structure and use of a single line divided into a bare, bare wire, soft wire, and braided wire, profile and profiles four series.

Bare-line: it refers to the non-ferrous metal singlet of different materials and sizes; can be divided into a round single line (copper, aluminum, and its alloys), a flat line, with a metal coating (tin, silver, nickel) in a single and double metal wire (aluminum Steel, copper-clad steel, copper clad aluminum) and the like.

Bare stranding: the overhead wires. Generally, regardless of the voltage level of the wire. But wire 330 ~ 500KV transmission line level, the external diameter of the wire and surface finish with special requirements in order to reduce surface corona wire (electric field surrounding the use of local air power free, will increase the line loss). Overhead wires lose focus on the power generation, transformation, and distribution section.

The bare twisted structures can be divided into three types: single line single twisted metal material from the system, such as aluminum wire, copper wire, aluminum stranded wire, etc; with a strand of wire to increase the tensile strength, twist the outer layer or layers of aluminum or aluminum alloy wire ACSR; bimetallic single track from stranding strands, such as aluminum-clad steel wire.

ACSR derive the same size can have several specifications that same aluminum conductor cross-section, and with the steel core wire 2 to 5 kinds of cross-section, such as the 400 / 20,400 / 35,400 / 50,400 / 65,400 / 95; 400 of the cross-section of aluminum and, while the lower slash steel core wire section.

Soft wire and braided wire: This product is a single line through the Stranded fine copper, double twisted together; lines are generally made of flat batteries in parallel (commonly known as dreadlocks line).

Profile and profiles: the cross-sectional shape of the product is different, not circular called type lines; rather a large length of use of the product is known as profiles.