Transmission lines often must traverse mountain ranges or plateaus situated at least 1000 m above sea level. In such cases, design of transmission and distribution systems has to take into account fundamental changes in insulation performance associated with high altitude.

Lightning Arrester is an electrical appliance used to protect electrical equipment from high transient over-voltage hazards during lightning strikes, limit the freewheeling time, and often limit the freewheeling amplitude. A lightning Arrester is sometimes called an overvoltage protector or overvoltage limiter. Next, let's take a look at the introduction of Lightning Arrester. Here are some answers.

The current-limiting fuse is a closed fuse that can limit short-circuit current and can quickly cut off the fault current. Its structure is characterized by placing the melt in a closed porcelain tube filled with quartz sand. There are also additional current-limiting resistors in series to limit the short-circuit current and reduce the overvoltage caused when the current is cut off. So, let us take a look at the introduction of the current-limiting fuse. Here are some answers.

Cable Accessories are products that connect cables with transmission and distribution lines and related power distribution devices. The reliability of high-voltage Cable Accessories can be judged from the aspects of electrical performance, sealing and moisture-proof performance, mechanical performance, and process performance. So, let us take a look at the introduction of Cable Accessories. Here are some answers.

The cold shrink cable joint kit is made of ethylene propylene rubber and silicon rubber to be processed into pipes. After expansion, the inner wall is supported by spiral nylon strips. When installing the cold shrink cable joint kit, you only need to put the tube on the cable core, pull away from the supporting nylon strip, and rely on the shrinkage characteristics of the rubber to shrink the tube on the cable core. Generally used in plastic insulated cable lines of 35kV and below, especially suitable for places where open flames are strictly prohibited, such as mines, chemical plants, and oil refineries. Next, let's take a look at the introduction and advantages of the cold shrink cable joint kit. Here are some answers.

It has long been known that corona can lead to insulation failure. However not all aspects of the problem are fully understood and are still being researched, including magnitude and duration of corona to initiate degradation, best detection methods and development of suitable tests to predict performance in its presence.