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Chapter 54 Earthing arrangements and protective conductors
Two new regulations (542.2.3 and 542.2.8) have been introduced concerning earth electrodes.
Two further new regulations (5184.108.40.206 and 5220.127.116.11) have been introduced. These give requirements for the insertion of a switching device in a protective conductor, the latter regulation relating to situations where an installation is supplied from more than one source of energy.