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<blockquote data-quote="ProDave" data-source="post: 292937" data-attributes="member: 6969"><p>I agree. There's a specific reg somewhere that allows a smaller cable than normal for the OCPD providing there's downstream OCP and it's a "short run" and protected from physical damage.</p><p></p><p>I would argue fire alarms have batteries so they carry on working if the power goes, so the fire rating of the supply cable is less important than the other cables associated with it.</p><p></p><p>And the fire alarm is turned off as the cover is off and someone is working on it.</p></blockquote><p></p>
[QUOTE="ProDave, post: 292937, member: 6969"] I agree. There's a specific reg somewhere that allows a smaller cable than normal for the OCPD providing there's downstream OCP and it's a "short run" and protected from physical damage. I would argue fire alarms have batteries so they carry on working if the power goes, so the fire rating of the supply cable is less important than the other cables associated with it. And the fire alarm is turned off as the cover is off and someone is working on it. [/QUOTE]
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