Shrink sleeve generally refers to cold shrink cable accessories cold shrink cable accessories is the use of an elastomeric material (commonly used silicone rubber and ethylene-propylene rubber) injection vulcanizing in the factory, and then by expanding, lined with plastic screw support It was composed of various components of cable attachment. On-site installation, these sets of pre-expansion joints in the cable end or post-processed to extract the internal support of plastic spiral rod (support), pressing the cable attachment on the cable insulation and composition. Because it is at room temperature by elastic recoil, rather than heat-shrinkable cable accessories with fire heat shrinkage, so-called cold shrink cable accessories. Early cold shrink cable terminal head is attached with silicone rubber insulation shrink components, electric field treatment still use stress or stress cone type tape wrapping style. Now in general are cold shrink stress control tubes, voltage level from 10kv to 35kv. Cold shrink cable joints, 1kv grade cold shrink insulation tube made of reinforced insulation, 10kv grade using joints with inner and outer semi-conductive shield cold shrink insulation member. Three core cable terminal bifurcation branches cold shrink sleeve. Cold shrinkable sleeve and EPDM (EPDM) rubber introduction 1, shrink tube cold shrink technology generally refers to a tubular cable accessories, with insulation, sealing, protection and other functions. Cold shrink technology, also known as pre-expansion technology, because it is at room temperature by the contraction of elastic recoil, rather than as heat shrinkable material to be heat-shrunk, so-called cold shrink technology. Shrink tube materials commonly used in silicone rubber and ethylene-propylene rubber. Shrink tube has a small, easy to operate quickly, without special tools, less wide scope and product specifications and so on. Compared with the heat shrink type products, without using tools heated in the case of thermal expansion and contraction can be tightly sealed, not due to the thermal expansion and contraction gap is created. 2, EPDM (English name: Ethylene-Propylene-DieneMonomer, hereinafter referred to as EPDM) is ethylene, propylene and non-conjugated diene terpolymer. EPDM rubber has excellent mechanical properties, puncture resistance and high tear resistance, weather resistance, resistance to ultraviolet radiation, ozone aging, acid, salt spray corrosion resistance, high temperature up to -55 ℃ ~ + 150 ℃ , it is an ideal sealing material communication cable, coaxial cable, low-voltage power cable. Features Editor 1, easy to install, only manual operation, without heating or the use of special tools, joints without hot melt adhesive or tape enhance sealing; 2, suitable for connecting and sealing a wide range of different specifications of the cable can be used indoors, outdoor, aerial, buried into the water or on other occasions, electricity, communications, and other cable; 3, resiliency tough, radial retraction force, permanent deformation, even after prolonged use of the cable remains permanent radial pressure, seal tightly, excellent moisture-proof, waterproof, dustproof performance; 4, the EPDM has excellent resilience and "elastic memory", with the seal "same breath", they are able to play an excellent sealing effect, in the wind swing Under the dynamic environment can still maintain a very good sealing effect; 5, resistance to salt spray corrosion, acid and alkali resistance to ozone aging, weatherability, UV-resistant aging excellent performance; 6, high mechanical strength, softness, excellent The puncture resistance, abrasion resistance, flex resistance, mechanical properties of fatigue.