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Regulation 21 Protective measures

Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below:

  • reg.3(1) (defn of British Standard Requirements) added reg.3(1) (defn of Institution Electrical Engineers Regs) revoked by Electricity Supply 1992 reg.2(a) of SI 2961, reg.2(b)

The supplier shall apply protective devices to every system which will, so far as is reasonably practicable, prevent any current, including leakage to earth, from flowing in any part of a system for such a period that that part of the system can no longer carry that current without danger.