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  1. J

    Understanding voltage readings on dimmer and earthing

    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...
  2. J

    Earth wire in bathroom pull switch - should I connect to terminal in body?

    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 ( ). On removing the old switch, the electrician had covered the earth wire in...