Bathroom & Shower Room zones explained.
Because of the increased risk of electric shock, a room containing a bath or shower is now considered a special location as outlined in the new 17th edition IEE Wiring Regulations.
The extent of the zones in a bath or shower room can be limited by floors, ceilings and walls. For more detailed information see BS 7671 diagrams 701.1 & 701.2. Any electrical equipment installed on the surface of floors, ceilings and walls that limit a zone is subject to the requirements of that zone.
RCDs are required for all circuits in locations that contain a bath or shower. The requirements for local supplementary bonding have been relaxed if certain conditions are met.
Please note that this guide is only to be used as general reference. Please ensure that you are fully aware that any electrical and installation work must be carried out in accordance with IEE Wiring Regulations, The Building Regulations and any further compliancy that might be required. If in any doubt, consult professional help from a qualified individual or company.
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