The selection of cable accessories

Release date：2019-02-12 author：admin Click:

Today, let's talk about what problems should be paid attention to the selection of cable accessories.
1, Electrical performance
The quality of electrical performance is the primary principle for the selection of cable accessories. It is mainly considered whether the electric field distribution of cable accessories are reasonable, whether the measures for changing the electric field distribution are appropriate, the electrical strength of the material, the dielectric loss and the insulation margin of the product. At the same time, the stability of electrical performance must be considered, including the chemical, physical properties and structural stability of the cable accessory materials.
2, Sealing performance
Sealing performance directly affects the electrical performance and service life of cable accessories. Whether the sealing structure of the terminal is reliable and stable. In general, the intermediate joint should also have a matching metal moisture barrier, especially for direct burial or use in a humid environment.
3, Mechanical properties
The terminal should have sufficient resistance to bending and stretching. The intermediate joint should be able to withstand certain pulling forces and measures to prevent damage from external forces.
4, Process performance
Process performance is an important condition for the design and the selection of cable accessories. The installation process should be as simple as possible, to construct on site, the construction period should be short; with good quality are not dependent on the site environment requirements and the technical level of the installers; easy to control, reliable quality, etc.
5, Suitable for the requirements of project
There are many varieties of cable accessories in the domestic and foreign markets, and the structure is different. Many types of cable accessories have their own characteristics and have developed for more than a decade. The selection of cable accessories should be determined according to the actual use requirements. It is not necessary to blindly pursue new trends.

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