-
ABOUTJinchangcheng Wire & Cable Co., Ltd. is an integrated modern cable manufacture enterprise that locates in a strategic location, with a research, development, production and advanced equipment, innovative ideas, abundant human resources.
-
PRODUCTSOur main products are: 0.6 / 1KV power cable, (8.7 / 15KV, 35KV) high voltage cross-linked cable, (flame retardant / fire resistant) cable, mineral insulated fireproof cable, 1KV ~ 10KV overhead insulated wire, aluminum wire, steel ACSR...
-
BLOGWith modern management mode and advanced manufacturing technology, the company has built an internationally competitive Jinchangcheng brand.
-
-
JOIN USOur company always adheres to the talent concept of "people-oriented", and actively creates an atmosphere of respect, understanding, integrity and friendship
Some knowledge points of steel core aluminum stranded wire
Release time:
2022-03-02
At present, the steel core aluminum stranded wire is the main application of the main line of China's power system. For a long time in the future, ACSR will still be the main product used in China's power grid, which is mainly determined by the characteristics of ACSR and the design characteristics of China's power grid.
At present, the steel core aluminum stranded wire is the main application of the main line of China's power system. For a long time in the future, ACSR will still be the main product used in China's power grid, which is mainly determined by the characteristics of ACSR and the design characteristics of China's power grid.
ACSR is composed of aluminum wire and steel wire and is suitable for overhead transmission lines. The inside is a steel core, and the outside steel core is wrapped around an aluminum wire. The steel core mainly plays a role in increasing strength, and the aluminum stranded wire mainly plays a role in transmitting electric energy.
application of steel core aluminum stranded wire:
For high-voltage transmission lines, due to the limited routing of the lines, it is impossible to put multiple lines on one route. People came up with a line, a set of iron towers, and a method of hanging multiple lines, that is, one line is equivalent to multiple lines. For 500KV transmission lines, China mostly adopts the four-wire hanging method, known as the same tower and rack.
Steel core aluminum stranded wire refers to the reinforced conductor of single-layer or multi-layer aluminum stranded wire stranded outside the galvanized steel core wire. Mainly used in power and transmission line industry. It can be seen that its quality directly affects the safety of power transmission. Its advantages are: steel core aluminum stranded wire has simple structure, convenient erection and maintenance, low line cost, large transportation capacity, conducive to laying across rivers, valleys and other special geographical conditions, good conductivity, sufficient mechanical strength, and tensile strength High, increase the distance between poles and towers. Therefore, it is widely used in overhead transmission and distribution lines of various voltage levels.
The main reasons affecting the quality of steel core aluminum stranded wire:
1. monofilament wire drawing processing
Main reasons:
1) The single wire is wound loosely on the coil, or the single wire is pulled too tightly on the coil;
2) The threading pipe is blocked by the groove due to friction, the single wire is knotted, or the brake of the release disc is too tight. Single-line arching, loosening and serpentine bending.
2. steel core aluminum stranded wire technical factors:
1) The choice of the middle diameter ratio is unreasonable;
2) Single wires on the wire-cage distribution board are staggered and unevenly distributed;
3) The die aperture is too large;
4) individual single line tension is too large.
3. steel core aluminum stranded wire production management:
In the production process, to strictly control the quality of raw materials into the plant, pay attention to avoid the mechanical damage caused by the coil bump in the process of transportation, pay attention to the storage location of aluminum wire, avoid the damage caused by the corrosion of corrosive medium humid air.
Precautions for the production of steel core aluminum stranded wire:
1) Before production, select appropriate parameters, such as pitch diameter ratio, twist ratio, twist length and twist direction. They have a direct impact on product quality, stability, strength, resistance and material consumption.
2) Reasonably adjust the position distribution of the single line on the distribution board according to work experience;
3) Select the appropriate pressure hole grid, generally requires that the die diameter is 0.3-0.5mm smaller than the outer diameter of the wire;
4) Reasonably adjust the tension of the release reel to ensure that the tension of each single wire is moderate and consistent; 5) Adjust the torsion device at the same angle to eliminate the internal stress generated during the processing of the guide rail;
6) Minimize the number of stops during the twisting process and try to produce at a constant speed.
TAG:
Recommend
Service Hotline:
E-mail:
Address:
Yincun Economic Development Zone, Renqiu City, Cangzhou City, Hebei Province