There are thousands of wire and cable products, which are used in various industries. There are two general uses for them, one is to transmit current and the other is to transmit signals. The main technical performance index of the transmission current cable is the time-voltage performance of the conductor resistance; the main technical performance … Read more
Cable products with only conductors without any insulation layer are called “bare wires and bare conductor products”. In order to ensure the current flow along the wire and electrical safety, external insulation suitable for the line voltage must be installed during installation, such as space separation, insulator support, etc. Therefore, this type of product itself … Read more
1.Coefficient of compression of wire core Aluminum alloy cable and the traditional power cable process structure and auxiliary materials have certain differences, aluminum alloy cable conductor using aluminum alloy monofilament tightly pressed stranded way, its core compression coefficient reached 97%, the conductor is very dense, and the traditional copper-core cable, aluminum-core cable in the conductor … Read more
Cross-linked cable is short for cross-linked polyethylene (XLPE) insulated cable. Cross-linked cables are suitable for transmission and distribution lines with power frequency AC voltage of 500KV and below. At present, most of the high-voltage cables have been used for cross-linked polyethylene insulated cross-linked cables, which usually means that the insulation layer of the cable is … Read more
What is XLPE cable? The cross-linked polyethylene(XLPE) insulated cable uses peroxide cross-linking method to change the polyethylene molecule from a linear molecular structure to a three-dimensional network structure, and from a thermoplastic material to a thermosetting material. The working temperature is increased from 70°C to 90°C. Improve the current carrying capacity of the cable; What … Read more
Polyethylene abbreviated as PE, it is a polymer of ethylene, non-toxic. Easy to color, good chemical stability, cold resistance, radiation resistance, and good electrical insulation. It is suitable for packaging materials for food and medicine, Making food utensils, medical equipment, and insulating materials for the electronics industry, etc.;PE cable become the better choice economically. Polyvinyl … Read more
1. What are the requirements for fixing AC single-core cables? why? The clamp should have no iron to form a closed magnetic circuit. This is because when the cable core passes current, magnetic lines of force are generated around it. The magnetic line of force is proportional to the current through the core. If iron … Read more
Following are some Q&A people interested about wire and cables : 1. What types of commonly used wires and cables are classified by purpose? Answer: According to the purpose, it can be divided into bare conductors , insulated wires, heat-resistant wires, shielded wires, power cables, control cables, communication cables, radio frequency cables, etc. 2.What is … Read more
XLPE power cable has good electrical and corrosion resistance. It is easy to install and easy to operate and maintain. It is widely used in 10 kV rural distribution networks. However, once it fails, it is difficult to repair and find. Combining the actual operation and work, focus on the analysis of the principle and … Read more
Overhead lines mainly refer to overhead cable, erected on the ground, and are transmission lines that use insulators to fix transmission wires on poles that stand upright on the ground to transmit electrical energy. Overhead lines have low cost, strong mobility, and easy maintenance. However, overhead lines hinder traffic and construction and are easily polluted … Read more