Cold Shrinkable Insulation Tube is a type of tubing usually made from silicone or EPDM rubber material which holds the capability to shrink tightly over a cable or connector when the end of the tube is removed. Unlike heat shrinkable insulation tubes, cold shrink tubing does not need any external heat source or tools during the application process.
The tube is made with a pre-expanded design, which means it is made larger than the cable or connector it is intended to fit. Once the tube is positioned over the cable or connector, the inner support system (usually a plastic core) is removed, leaving behind a tight seal around the cable or connector. The tube contracts to its original size and conforms to the shape of connector or cable providing sturdy environmental protection.
Cold shrink tubing is widely used in the electrical industry for jointing and termination applications, where it provides excellent electrical insulation, corrosion resistance and mechanical protection to the cables, connectors and joints.
Here are the general steps to use Cold Shrinkable Insulation Tube:
Choose the correct size and length of tubing for the application and make sure it will fit tightly around the cable or connector.
Remove any moisture, dirt, and oil from the cable or connector.
Start by removing the liner from the end of the tube.
Slide the tube over the connector or cable.
Once positioned, pull down on the core of the tube, which is the plastic or foam support inside the tube. This will remove the core and enable the tube to contract.
Make sure the tube completely fits around the cable or connector and seal the ends with electrical tape to ensure further safety.