Julian Grant of Chauvin Arnoux provides more detail about harmonics and the problems they create, as well as their relationship with the Wiring Regs.
Harmonics are currents in the supply system at whole-number multiples of the supply…
NAPIT’s Technical Development Engineer, Richard Townsend, discusses the differences and BS 7671 requirements for emergency and mechanical maintenance switches.
A switch is a switch…. isn’t it?
Often misunderstood is the topic of switching,…