Description

Steel cored aluminum strand

Product type: LGJ (JL/G1A)

Executive standard: GB/T********8

Production range: *6mm****0mm

First, the relevant structure

The steel core aluminum stranded wire is made up of aluminum wire and steel wire, which is suitable for overhead transmission lines

It is inside the steel "core", the outside is wrapped around the core of the steel wire by twisting the way; the main role of the steel core to increase the strength of the main role of aluminum wire transmission of electricity;

Two, related models

The model of steel core aluminum strand is divided into: JL/G1A JL/G1B JL/G2A JL/G2B JL/G3A

Among them: G1A or G1B refers to the ordinary strength steel wire

G2A or G2B is a high strength steel wire

G3A refers to ultra-high strength steel wire

Type difference: take JL/G1A***0/*0 type steel core aluminum strand as an example

In the national standard (GB/T********8) in the current JL/G1A***0/*0;

In the national standard (GB/T********3) in LGJ***0/*0

Three, the main application

The transmission line of high voltage, due to line path limited, and can not be on multiple lines in a path, people come up with using a path, a tower, hanging a plurality of conductors, a line equivalent frame method of multi line transmission line; for **0KV, China most of the four wires hanging way, this way is called the line on same tower and rack.

Four, related advantages

ACSR has the advantages of simple structure, convenient erection and maintenance, line of low cost, large transmission capacity, but also conducive to the special geographical conditions across rivers and valleys laying, have good conductivity and sufficient mechanical strength, high tensile strength, the characteristics of tower distance amplification. It is widely applied to various voltage overhead the level of transmission and distribution lines.

Five, technical conditions

***0 mm2 ACSR technology will be relying on Ningdong - Shandong - **0 thousand volt DC power transmission project to carry out the implementation of the project. The company launched a series of research work, considering the electromagnetic environment, mechanical properties, tower load, economic and other factors, the ***0 mm2 ACSR in Ningdong - Shandong project. Have many advantages, can reduce the project ontology investment, reduce operating costs, is to carry out "two new" transmission line construction, the implementation of life cycle asset management, promote resource-saving, embodies the construction of environment friendly society.