The process for safe isolation
In this video Steven Devine, author of the IET Student’s Guide, walks us through the process of safe isolation.
Introduction to isolation and switching
This article from ELECSA provides a brief overview of isolation and switching how the terms are used in BS 7671. The term ‘isolation and switching’, as used in BS 7671, embraces four distinct concepts, each with its own particular requirements for safety. The four concepts are: isolation, switching off for mechanical maintenance, emergency switching, and functional switching. This article will only consider isolation. Summary of the four safety concepts Switching off…