Electric cable terminations.

摘要

In a termination for a fluid-filled cable, the insulator 2 has an imperforate metal end-fitting 3 so that the risk of leakage of fluid into or out of the cable is negligible, whichever direction the pressure differential may be in - this makes the termination especially suitable for pressurised gas switchgear. A terminal 6 on the cable conductor end is connected to the end-fitting 3 by a plug-and-socket joint 4 and 5, and there is also a direct shoulder to shoulder engagement to transmit compressive forces. A latching mechanism comprising for example retractable pins 7 which ride up camming surfaces 10 and engage shoulders behind them, holds the plug-and-socket engaged against tensile forces.