Small volume, easy to operate the cold cable accessories

by:Mings     2020-07-19
The cold cable accessories is the use of elastomer materials ( Commonly used with silicone rubber and ethylene propylene rubber) Injection of vulcanization molding in the factory, then through hole enlargement, lined with plastic screw support constitute parts of various kinds of cable accessories. On-site installation, the pre expansion woolly, in after processing, the end of the cable or tapping out internal support article plastic screw ( Support) , the pressure on the cable insulation and cable accessories. Because it is in the room temperature by elastic retraction force, rather than the heat shrinkable cable accessories to use heat shrink, commonly known as the cold shrink cable accessories. Early cold shrink cable terminal head just additional parts adopt silicon rubber insulation from the cold, electric field treatment still USES the stress cone type or stress belt around the package type. Now generally adopt cold shrinkage stress control tube, from 10 kv to 35 kv voltage level. Cold shrink cable joint, 1 kv level using cold contraction insulation tube reinforced insulation, 10 kv level with joint semiconduction shielding layer inside and outside the cold contraction insulation parts. With cold contraction are three core cable terminal bifurcation branches. The cold cable accessories has small volume, convenient operation, quickly, without special tools and less scope width, and product specifications. Compared with the heat shrinkable cable accessories, don't need a fire heating, and move or bend after installation will not appear like heat shrinkable cable accessories accessories internal interlayer release dangerous ( Because the cold cable accessories by elastic compression force) 。 Compared with prefabricated cable accessories, although everything elastic clamping force to ensure that the internal interface features, but it's not like prefabricated cable accessories and cable is one to one correspondence, specifications.
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