According to the development of the wire and cable industry, the state adjusts the structural development of the domestic wire and cable industry products, and gradually turns to the high-end product stage. The technical level of the wire and cable industry is also continuously improving. The localization process of high-end intelligent production equipment It should focus on promotion, build brand building, and improve the influence and competitiveness of products.

1. What is an overhead cable?
   Ａbc cable overhead aluminum (full overhead insulated cable) is an overhead conductor with an insulating layer and a protective sheath. Its production is a special special cable manufactured by a similar cross-linked cable production process. It is a new type of cable between overhead conductors and underground cables. mode of transmission.

2. Classification of overhead cables
Aerial cables are generally single-core, which can be divided into hard aluminum wire structure, hard-drawn copper wire structure, aluminum alloy wire structure, steel core or aluminum alloy core support structure and self-supporting three-core stranded structure (wire core) according to different structures. It can be hard aluminum or hard copper wire) and so on. The rated voltages are 0.6/1KV, 10KV and 35KV respectively.

                                                     

3. What are the main advantageous features of overhead cables?
(1) High reliability of power supply
The use of overhead cables can greatly reduce all kinds of short-circuit faults (especially the common flashover faults of overhead bare wires), and the failure rate is 4-6 times lower than that of overhead bare wires.
The domestic overhead cable was put into trial operation in Shanghai in 1988. The test overhead cable traveled along the dense boulevard of Huaihai Road. After passing the season of Shanghai typhoon area and the high temperature in summer, the operation was good, and its power supply failure rate was greatly reduced compared with the original overhead bare conductor. Overhead cables will not produce water trees during use, and the insulation quality of the cables will not decrease significantly after years of use and operation.
(2) Good power supply security
The use of overhead cables greatly reduces personal electric shock casualties.
(3) The construction and laying of overhead cables are simple, and the maintenance and repair are more convenient.
(4) The price of comprehensive installation of overhead wires is low, which is conducive to the effective development of the economy.

4. Development prospects of the industry
    According to the development of the wire and cable industry, the state adjusts the structural development of the domestic wire and cable industry products, and gradually turns to the high-end product stage. The technical level of the wire and cable industry is also continuously improving. The localization process of high-end intelligent production equipment It should focus on promotion, build brand building, and improve the influence and competitiveness of products.