In a room containing a bath or shower, additional protection must be provided for all circuits of the location by means of an RCD having the characteristics specified in Regulation 415.1.1 (Regulation 701.411.3.3 refers). It is also required by BS 7671 that the circuit(s) comply with the relevant requirements for automatic disconnection, such that the disconnection times will meet the requirements of Regulation Group 411.3.2, and that extraneous-conductive-parts are connected to the protective equipotential bonding according to Regulation 411.3.1.2.
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