Cold shrinkable termination kits are an essential component for safe and reliable electrical installations. These kits provide a simple, maintenance-free solution for terminating medium voltage power cables. In this article, we will discuss the main installation steps for cold shrinkable termination kits.
Step 1: Prepare the Cable
Before installing the termination kit, the cable must be prepared. Start by cleaning the cable with a cable cleaning kit. Remove any sharp edges on the cable and ensure that the insulation is intact.
Step 2: Install the Cable Lug
Attach the cable lug to the prepared cable. Secure it with a bolt and tighten it with a torque wrench. It is important to follow the manufacturer's guidelines for tightening torque to ensure a secure connection.
Step 3: Install the Cold Shrinkable Termination
Slide the cold shrinkable termination over the cable and position it over the cable lug. Ensure that the termination is seated correctly over the cable insulation and the cable lug. Gently stretch the termination and release it to allow it to shrink onto the cable.
Step 4: Seal the Termination
Use a heat gun to provide heat to the mastic strips at the base of the termination kit. This will soften the mastic and allow it to flow around the termination, ensuring a watertight seal. After the mastic has cooled and hardened, wrap the termination with a self-amalgamating tape to provide additional protection.
Step 5: Test the Termination
Once the termination is installed and sealed, it is important to test it for electrical continuity and insulation resistance. Use a digital multimeter to test the cable lug connection for continuity, and use a megger to test the termination for insulation resistance. Ensure that the test results are within the manufacturer's specifications.
In conclusion, installing cold shrinkable termination kits require careful preparation and attention to detail. Following the manufacturer's guidelines and taking time to ensure that the cable and termination are properly prepared, installed, and sealed will result in a safe and reliable electrical installation.