Electrical Stress Control In Cable Joints And Terminations

Traditional geometric stress cone.

Electrical stress control in cable joints and terminations.

Choosing cable terminations to reduce electrical stress. Sometimes some types of cable splices can be a back to back cable termination like the stop joint pictures i showed in a previous post. This method reduces the electrical stress at the shield discontinuity by extending the shield and gradually increasing the thickness of insulation under the shield. The book covers the installation of medium voltage cable terminations separable connectors cable joints and associated lv mv hv power cable accessories such as cable glands lugs and cable cleats.

This is why all mv joints and terminations have stress control components whose function is to reduce the electric stress at the screen edge and other positions of high stress to acceptable levels. Another common method is heat shrinkable stress control tubing that is used to control high electrical stresses at insulation screen terminating point in medium voltage plastic and paper insulated cable joints and terminations up to 36 kv. It doesn t matter the type of cable or manufacturer the. Control and dissipate electrical stress through deflection.

Today we overview chapter 7 stress control in polymeric medium voltage cable accessories. The following information has been republished with kind permission of 3m electrical.