When a short circuit occurs or there is an open fire nearby, the commonly used XLPE power cables will be caused by flames, and the fire will be more serious, especially when multiple cables are laid in a concentrated manner. Therefore, it is very important to take reasonable fire protection measu...

Fuses are the simplest protective electrical appliances, which are used to protect electrical equipment from damage from overload and short-circuit current; choose different types of high-voltage fuses according to installation conditions and uses, such as outdoor drop type, indoor type, and high...

In the long-term use of zinc oxide arresters, insulation aging often occurs. It may look normal on the outside, but the interior is not suitable for continuing to work. Therefore, it is necessary to check the insulation performance of zinc oxide arresters in time. Zinc oxide arrester tester is us...

1. Flow capacity This is mainly reflected in the arrester’s ability to absorb various lightning overvoltages, power frequency transient overvoltages, and operating overvoltages. 2. Protection features Zinc oxide arrester is an electrical product used to protect various electrical equipment ...

Power cables are used to transmit and distribute high-power electrical energy. According to different insulating materials, they can be divided into oil-impregnated paper-insulated power cables, rubber-insulated power cables and PVC-insulated power cables. The most widely used in engineering is t...

1. Different cables 1. Power cable Power cables are cables used to transmit and distribute electrical energy. Power cables are often used in urban underground power grids, power station lead-out lines, internal power supply in industrial and mining enterprises, and underwater transmission lines a...

1. Cable connection method Power cord connectors are divided into “+ word connection method”, “- word connection method”, “T-word connection method” and so on. Seams should be tangled, smooth and unnecessary. Before the wire ends are disconnected, the clamp wir...

The pollution degree of an insulator refers to the pollution degree of a certain geographical area where the insulator is located. Line flash pollution will cause large-scale power outages and seriously affect the reliability of power supply. In order to prevent pollution flashover accidents, it ...

1. Suspension insulator It is widely used in the insulation and mechanical fixing of high-voltage overhead transmission lines and soft busbars in power generation and substations. Among the suspension insulators, it can be further divided into disc suspension insulators and rod suspension insulat...

A lot of disc-shaped insulators are hung at one end of the high-voltage wire connection tower. It is to increase the creepage distance. It is usually made of glass or ceramics, which is called an insulator. In order to prevent dust and other contaminants from adhering to the surface of the insula...

The cable joint is also called the cable connector. After the cable is laid, in order to make it a continuous line, each segment of the line must be connected. The cable joints in the middle of the cable line are called intermediate joints, and the cable joints at both ends of the line are called...

YJV cable is a commonly used type of power cable. Nowadays, many people refer to YJV cable when talking about cable. As the backbone cable in power transmission, YJV cable is like the arterial blood vessels in human blood vessels, or the trunk of a tree, which shows its important position in powe...