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In thje 2019 Edition of NFPA 20 9.1.8.2 states "No arc fault interruption means shall be installed in any fire pump control or power circut.  Now immediately after it 9.1.8.3 states Arc-resistant equipment shall be permitted.

Question asked by drbcybor on Sep 25, 2018
Latest reply on Oct 2, 2018 by drbcybor

I know this is not exactly the same thing but isn't it still somewhat conflicting information?  Isn't arc fault interruption a type of arc resistant  equipment?  There is no definition or annex material for the existing or new information

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