Cable termination is to use cold head elastomer material (commonly used a silicone rubber and ethylene-propylene rubber) in the factory in injection molding sulfide, then the hole diameter, line with plastic spiral support various cable accessories constitute the parts. The scene when installed, will these the expansion in the processed set within the end or cable, take out the plastic article spiral internal support (thickness), pressure in cable insulation and consists of the cable accessories. Because it is in the normal temperature by essels force, not like heat shrinkable cable accessories to heat shrink with fire, so commonly known as cold cable accessories. The early cold cable terminal head just additional insulation is cold silicone rubber parts, electric field treatment still use cone type or stress with stress around the bag type. Now all the common cold stress control tube, the voltage level from 10 kv to 35 kv. Cable terminal head cold, level 1 kv by cold shrink insulating tube to be reinforced insulation, 10 kv level with the internal and external semi-conducting shield joint cold insulation parts. Three core cable terminal bifurcate place by cold shrink branch sets. Cold cable terminal head has small, convenient operation, quick, no special tools, scope width less product specification, etc. And heat shrinkable type than cable accessories, don't need heat; And after the installation or bending won't like to move heat shrinkable type cable accessories that appear attachment between layers of internal withdraws risk (for cable terminal head cold by elastic compaction force). Prefabricated type compared with cable accessories, although by elastic compaction force to ensure internal UI features, but it is not like precast type cable accessories that and cable is exactly corresponding, specifications.