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Hello there, I am rewiring a metal dimmer switch after redecorating; before decorating there was no earth cable between the cable from the wall and the earth terminal on the dimmer. The lighting circuit is protected by a RCD but as I understand it a metal dimmer switch is class 1 so should be...

Hello, I have just replaced an old batchroom pull switched that had been installed about 10 years ago with a LAP Brushed steel pull switch ( https://www.screwfix.com/p/lap-6a-2-way-pull-cord-switch-brushed-steel/371cc ). On removing the old switch, the electrician had covered the earth wire in...