Material Properties And Working Mechanism Of Cold Shrink Cable Accessories

Silicone rubber, as the core material of Cold Shrink Cable Accessories, possesses excellent electrical insulation properties and physical and mechanical strength. This elastomer material is injection-cured in the factory and then expanded to a predetermined size using a special expansion technology. In field applications, technicians insert the expanded cold-shrink tubing into the part of the cable to be protected, remove the internal support spiral, and the tubing, relying on its own elastic recoil force, tightly adheres to the cable surface, forming a reliable protective layer.

During use, cold-shrink cable accessories maintain a constant radial pressure on the cable body. This compression mechanism "breathes" synchronously with the cable, preventing interlayer separation due to temperature changes. The high elasticity of silicone rubber allows the product to adapt to the thermal expansion and contraction of the cable during operation, maintaining stable interfacial contact over a long period. Whether for intermediate joint connections or terminal protection, cold-shrink cable accessories achieve both sealing and insulation functions through the physical properties of the material itself.