Wiring Matters Issue 99 - March 2024

Welcome to the March 2024 edition of Wiring Matters.

Mythbuster #10 “Event distribution boards with socket-outlets are not permitted for use on construction sites”

This myth stemmed from a query from a colleague and, having discussed it with a distribution board manufacturer, it appears it is not an unusual issue.

IET Guide to Temporary Power Systems – an update

The IET’s Guide to Temporary Power Systems is undergoing a long-awaited update. Much has changed since the first edition published in 2012, not just in respect of the British Standards BS 7671 and BS 7909, but also with the temporary power industry in general.

Bidirectional protective devices

With the advent of alternative supplies such as solar photovoltaic (PV) and energy storage systems, power flows in both directions and bidirectional power flow is something that needs to be considered with respect to certain protective devices.