Special Locations
The 16th Edition of BS 7671 allowed up to three socket outlets to be supplied from one circuit and RCD, but the 17th Edition now requires each outlet to have its own RCD, to prevent interruption to other supplies by a faulty caravan. RCDs are to comply with the requirements of Regulation 415.1.1 and must be multi-pole. Socket outlets should be fixed between 500 mm and 1500 mm from the ground to allow easy access and prevent damage from equipment or the elements. In cases where flooding may be expected, this height should be increased. The 16th Edition allowed socket outlets to be between 800 mm and 1500 mm from the ground, but this change in minimum dimension does not make installations carried out to the 16th Edition in any way unsafe, and the Regulations are not retrospective. This must be remembered during safety inspections. The further provision of RCDs in the 17th Edition has the same effect and does not affect safety. Figure G 5.1 is adapted from a diagram in BS 7671: 2008 and shows a pitch outlet, extension lead and caravan inlet.
G 6
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