How to use Stress Control Tube

Stress control tube are commonly used in high voltage power cables to help manage and reduce the electrical stress within the cable's insulation system. The electrical stress can arise due to several factors such as a change in the cross-section of the cable insulation, a change in the thickness of the insulation, or an electromagnetic field caused by the flow of current through the cable.

Stress control tube are typically made of semiconductor materials that have specific electrical properties. When the tubes are installed over the cable insulation, they help to distribute the electrical stress more evenly along the length of the cable, reducing the risk of electrical breakdown and improving the cable's overall performance.

Stress control tubes are most commonly used in high voltage power cables, such as those used in the electrical power transmission industry and in underground power supply systems. They are also used in other industries and applications where the control of electrical stress is critical to the safety and performance of the system. The size, shape, and material of the stress control tube will depend on the specific application and requirements.

Here are the general steps for using a stress control tube:

Prepare the cable: The cable insulation must be clean and dry before the stress control tube is applied. Any dirt or moisture on the insulation can compromise the effectiveness of the stress control tube.

Measure the cable: Carefully measure the diameter of the cable to select the correct size of stress control tube that will fit securely over the cable insulation.

Apply the stress control tube: Slip the stress control tube over the cable insulation, making sure that it is centered and covers the entire length of the insulation.

Secure the stress control tube: Depending on the type of stress control tube used, it may be necessary to secure it using adhesive or heat shrinkable tubing. Follow the manufacturer's instructions for the specific type of stress control tube being used.