At present, most of the prefabricated cable accessory Straight Through Joint of 110kV and above cross-linked cables are used at home and abroad, because they are all prefabricated structural materials as a whole, and the wrapping type joints and assembled prefabricated joints used in the early days have been rarely used.
Whether it is cable or Elbow Connector, they often meet the problem of insufficient length or accidental damage in the process of use, at this time we need to carry out the joint, if the joint is outdoors or in water, it is necessary to do a good job of waterproof treatment of the joint.
In view of the many shortcomings of the cross-linked cable itself and the partial discharge or electric tree discharge of the cable terminal due to the lack of attention to details by the construction personnel in the production of cold shrinkable accessories, we should strictly control the process in the future production process, and put forward the following preventive countermeasures and precautions
In the actual operation of power cable, there are quite a lot of accidents caused by COLD SHRINKABLE ACCESSORIES. Generally, the most likely place for cold shrinkable accessories to fail is in and near the middle connector and terminal head of the cable, especially the manufacturing process of the middle connector is more complicated, so it is relatively more likely to have potential accidents.
Heat Shrinkable Tube adopts high quality polymer, by scientific ratio, mechanical blending polymer, the product is formed by electron accelerator radiation crosslinking, continuous expansion.
For example, the product 10kV Cold Shrinkable Three Cores Termination Kit for Outdoor. Cold shrinkable cable accessories made of imported silicone rubber, it is with very good electrical performance, and also with excellent hydrophobicity, high elasticity, long usage life and constant pressure of shrinking.