Heat Shrink Sleeves and End Caps – The Low Cost Safety Cover

The hybrid heat shrink technology deploys high permittivity and high consistency to silicone rubber making it an ideal material for insulating electrical installations and accessories. The range of heat-shrink products comprises of cable joints, cable terminations, screened separable connectors, molded shapes, cable end caps, low voltage breakout, straight/ right angle boots etc. Over the years, after the introduction of heat-shrink technology and its products, heat shrink sleeves and heat shrink end caps have become the integral supporting accessories for any electrical installation plan.

The heat-shrink products are being used widely in installations being commenced in indoor, outdoor, underground, water, ducts environment. Heat shrinkable materials have a unique ability to have shape memory. These materials adapt to any temporary shape leaving their original shape. Polyolefin is the most used material by the leading brands for manufacturing the best quality heat-shrink products for electrical installations.

Heat Shrink Sleeves: These are made available in a wide range of sizes to fit for particular applications. When heated after rolling over the cables, these shrink up to the size of cables to become an excellent surface protection cover. Shrinking ration is the key selection parameter; for example, 3:1 ration means, the heat-shrink sleeve will shrink up to the 1/3 of the original size. What are the major applications of heat-shrink tubes that make it increasingly popular?

  • To protect cable splices against dust and water
  • To insulate cables/ wires against high temperature
  • To provide strong resistance against corrosive chemicals
  • To strengthen color code culture in electrical installations
  • To group multiple wires in a single sleeve
  • To make long-lasting information labels for networking
  • To terminate the braided sleeves securely and beautifully
  • To Make the electrical connections in products look elegant and professional

Heat Shrink End Caps: Electrical cable ends that are not to be used must be sealed safely. End caps are also called wire nuts or wire caps. The screw-on connectors and push-on connectors are the more widely used end-caps. Made from cross-linked Polyolefin, these are the best protection cover at the end of XLPE, rubber sheathed, PVC, PILC cables etc. The commonly accepted major uses of heat-shrink end caps include:

  • Insulating cable ends and splices terminations against moisture, chemicals, corrosion, and abrasion.
  • Providing cover against mechanical stresses and personal accidental contacts
  • Releasing expanding gases from pressurized cables developed because of high temperature
  • Degassing high voltage power cables
  • Sealing live cables

The leading brands manufacturing heat-shrink products to make the electrical installations safe against all the odds are expanding the range of ready to use heat-shrink sleeves and end-caps. You can buy the best suitable heat-shrink protection cover by exploring the size-chart made available on the website of a particular brand.