How to classify cable accessories

Release date：2019-05-31 author：admin Click:

How to classify cable accessories——1. Material. There are two main types of heat shrink cable accessories and cold shrink cable accessories. The heat shrink cable accessories are mainly made of polyolefin composite materials such as PE and EVA, and the main raw materials for the cold shrink cable accessories are silicone rubber and ethylene propylene rubber. Two different raw materials determine the different product characteristics of these two types of cable accessories.

How to classify cable accessories——2. Process. In addition to heat shrinking and cold shrinking, there is also a type of wrapping. The wrap-around cable attachment is made from the rubber strip (self-adhesive) made in the field, but the cable attachment is relatively poor in weatherability and easy to loosen, and has been eliminated. The heat shrink cable attachment has a shape memory effect that shrinks to its original position by heating and is light and reliable. The installation of cold-shrink cable accessories is simpler and more convenient. It can be shrunk only by pulling out the plastic support bars added during pre-expansion. It is suitable for environmental applications such as petrochemicals and mines where open flames cannot be used.

How to classify cable accessories——3. Cable condition. Low-voltage cable accessories are divided into one to five cores according to the number of cores of the cable, and high voltage only has two single cores and three cores. The specific size of the cable accessory also depends on the square of the cable cross section. The cold and heat shrink cable accessories can be divided into two major categories of cable terminations and intermediate connections. Which cable accessories are required is determined by the specific location of the cable.

How to classify cable accessories——4. Environmental conditions for construction and use. High-voltage cable accessories are divided into outdoor and indoor categories. The accessories in the complete cable accessories are slightly different. Outdoor cable accessories can be used indoors. However, indoor cable accessories must not be used in outdoor environments. There are also differences in the price of indoor and outdoor cable accessories.