How to Make a Cold Shrink Cable Terminal: A Step-by-Step Guide

Cold shrink cable terminals are widely used in modern power distribution projects due to their reliability, ease of installation, and maintenance advantages. This guide details the manufacturing method for 10–35KV three-core cold shrink cable terminals.

Key Features of Cold Shrink Terminals:
Simple Installation: The flexible cold shrink tube tightly conforms to the cable upon removal of the core support.
No Heat Required: Eliminates the need for heating tools, avoiding gaps caused by thermal expansion and contraction.
Superior Sealing: Provides excellent insulation and protection against moisture.

Application Scope:
This method is suitable for constructing terminal fittings on 10–35KV three-core power cables.

Working Principle:
The cold shrink tube retracts radially to form a tight seal around the cable. Combined with semiconductor self-adhesive tape at the port, it ensures reliable insulation and waterproofing.

Assembly Instructions:
1. Strip the cable jacket, steel armor, and inner liner.
2. Secure the steel armor wire.
3. Wrap the filler material.
4. Fix the copper shielding ground wire.
5. Position the cold shrink breakout and main tube.
6. Crimp the terminal lug.
7. Secure the stress cone.
8. Seal the port with tape.
9. Perform final electrical testing.

Detailed Procedure:
Begin by straightening and cleaning the cable. Strip the outer jacket, steel armor, and inner liner at the installation point, leaving a 30mm section of steel armor and a 10mm section of inner liner. Bind the steel armor with ZAS tape or PVC tape to prevent loosening. Wrap the end of the copper shield tightly with PVC tape to avoid displacement and protect the cold shrink tube from scratches.