Shrink cable joints preventive measures and treatment process

Cable insulation stripping , the application of fine sandpaper carefully polished surface of the main insulation layer , making it smooth and no marks , no semiconductor residual points . The insulation must be cleaned with cleaning solvent from the core to the semiconductor shield direction , do not use the shield contact with the semiconductor cleaning cleaning paper the main insulating layer surface .After crimping wire core , application file, sandpaper carefully polished to eliminate edges and tip , and pay attention to the metal fines shall not remain on the surface of the insulating layer .Cable connector in the production process should pay Hydraulic ferrules attention to keep clean , but should try to shorten production time , cut the cable after stripping , exposed to air for longer , intrusive impurities , water , gas , dust, etc. , the greater the possibility to affect joint quality . Therefore requested prior to construction to fully do the preparatory work to ensure uninterrupted production at one go. Production shrink joints should be carefully checked before cable accessories and cable facilities, so as to strictly control the shrink silicone rubber insulating sleeve amount of interference , to ensure that they have sufficient grip force, the interface close contact, no air gap . Respectively, in each phase after shrink Hydraulic adapters composite insulating sleeve surrounding the two ports at the semiconductor self-adhesive tape . Thus, both the silicone rubber casing semiconductor layer and semiconductor XLPE cable outer shield good contact , but also play the role of axial waterproof .Surrounding the self-adhesive waterproof tape, shrink connector moisture seal is key to a semi- overlap method ported from one to the other end of the connector wrapping , and then wrapping the opposite direction from one end to the starting side , wrap two layers. After each wrapped with both hands clasped in turn again, to make it better bonding. Be sure to pull the appropriate wrapping , so tightly wrapped seamless .