We are sometimes asked why the Wiring Regulations have disconnection times for electrical circuits. And what is the purpose of knowing how quickly a fuse or circuit breaker should disconnect an electrical circuit during a fault. The permitted time to disconnect from the electrical source and to make safe the circuit is very much dependent…
Month: March 2021
What is SELV and PELV
There is sometimes a misunderstanding of just what a SELV transformer is and how a PELV transformer differs to it. So what are the differences and why does it matter to the circuit in which they are installed and most importantly, how does that impact on the safety of the users of the installation? This…