The process of terminating MV cable involves multiple steps to ensure the reliability and safety of the cable connection. The following are the general steps for terminating medium voltage cables:
Preparation: Ensure the safety of the work area and wear appropriate personal protective equipment. Prepare the necessary tools and materials, including MV cable termination kits, insulation materials, stress control tubes, cleaning agents, etc.
Cable preparation: Cut the cable to the appropriate length according to the type and specifications of the MV cable. Ensure that the cutting surface is flat and free from damage to the insulation layer.
Cleaning treatment: Use the accompanying cleaning agent to clean the insulation layer and semiconductor layer of the MV cable, ensuring that the surface is clean and free of impurities such as oil stains and dust.
Stress control treatment: Install a stress control tube at the end of the MV cable, which helps to disperse the stress distribution of the electric field and prevent breakdown caused by electric field concentration.
Insulation treatment: Apply appropriate insulation material to the end of the MV cable to ensure the continuity and integrity of the insulation layer.
Crimping core wire: Use appropriate crimping tools to firmly crimp the MV cable core wire, ensuring good electrical connection.
Polishing treatment: Polish the crimping area to eliminate the possibility of discharge at the tip.
Wrapping a semiconducting tape: Wrap a semiconducting tape around the joint to maintain the electric field distribution at the joint consistent with the insulation of the main body.
Baking shrinkage: Bake the stress control tube and insulation material that have been fitted tightly to enhance the reliability of the connection.
Quality inspection: After completing all steps, conduct a quality inspection to ensure that all connection parts are tight, seamless, and have good electrical performance.
This process requires professional skills and experience, as any errors can lead to decreased cable performance or safety hazards. Before performing termination operations, it is recommended to carefully read the instructions for using the MV cable termination kit and seek professional guidance if necessary
