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Dc Through Ac Mcb's
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<blockquote data-quote="Sidewinder" data-source="post: 399153" data-attributes="member: 9512"><p>It's only the current carrying capacity of the switches that will matter.</p><p></p><p>If &amp; only if the standby supplies are fed to the luminaires through the functional switches.</p><p></p><p>Which, to be compliant they must never be.</p><p></p><p>The FP/Pyro argument will come down to client specifications.</p><p></p><p>As long as you have 3hr fire rating on the standby supplies then that is fine, or less if the luminaires are shorter rated.</p><p></p><p>Yes it is either a dangerous bodge, or something has not been explained to the OP correctly.</p></blockquote><p></p>
[QUOTE="Sidewinder, post: 399153, member: 9512"] It's only the current carrying capacity of the switches that will matter. If & only if the standby supplies are fed to the luminaires through the functional switches. Which, to be compliant they must never be. The FP/Pyro argument will come down to client specifications. As long as you have 3hr fire rating on the standby supplies then that is fine, or less if the luminaires are shorter rated. Yes it is either a dangerous bodge, or something has not been explained to the OP correctly. [/QUOTE]
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