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Internal Protection The NFC standards 17102: 2011, UNE 21186: 2011 and NP4426: 20131 indicate that each PDC must be connected to at least two down conductors.
The NFC standards 17102: 2011, UNE 21186: 2011 and NP4426: 20131 indicate that each PDC must be connected to at least two down conductors.