I've done these before and make no excuses for doing them again as we have many new members .
These are misconceptions which I found widespread within the trade , you may not agree. I can only think of three as its late , others may know of more.
(1) The rating on an RCD (say 30A) does NOT mean it offers any overload protection. ( I found this to be widespread)
(2) Cooker /Shower MCBs do NOT Have to be placed next to the main switch in C/U.
(3) And YES you CAN pass a neutral through a light switch box.
These are misconceptions which I found widespread within the trade , you may not agree. I can only think of three as its late , others may know of more.
(1) The rating on an RCD (say 30A) does NOT mean it offers any overload protection. ( I found this to be widespread)
(2) Cooker /Shower MCBs do NOT Have to be placed next to the main switch in C/U.
(3) And YES you CAN pass a neutral through a light switch box.