I have an electric shower connected to an MCB on the CU via a two core and earth cable with a separate double pole isolator switch outside the bathroom. The case of the shower is plastic and is connected via a 15mm plastic water pipe.
Does this shower unit (earth connection) need separate supplementary bonding to other metal objects in the room which are already connected to each other? - mainly metal incoming water pipes and radiator as bath and other pipes are plastic?
Also, if required, what is the best way to install this bonding as connecting an earth cable up to the shower unit would be difficult due to the bath panneling? - can it be connected to the double pole earth wire?
thanks
Does this shower unit (earth connection) need separate supplementary bonding to other metal objects in the room which are already connected to each other? - mainly metal incoming water pipes and radiator as bath and other pipes are plastic?
Also, if required, what is the best way to install this bonding as connecting an earth cable up to the shower unit would be difficult due to the bath panneling? - can it be connected to the double pole earth wire?
thanks