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Does a DNO 30mA RCD Isolator satisfy 411.4.204 (411.3.2.2)
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<blockquote data-quote="Sidney" data-source="post: 510323" data-attributes="member: 30039"><p>On a TN system I always use the max Zs for the MCBs rather than the RCD/RCBO as this should easily be achieved on the vast majority of TN systems. The only time I use the RCD max is for TT systems.</p><p></p><p>I would comment, though not necessarily code, that the whole installation could be affected if there's a fault on one circuit.</p></blockquote><p></p>
[QUOTE="Sidney, post: 510323, member: 30039"] On a TN system I always use the max Zs for the MCBs rather than the RCD/RCBO as this should easily be achieved on the vast majority of TN systems. The only time I use the RCD max is for TT systems. I would comment, though not necessarily code, that the whole installation could be affected if there's a fault on one circuit. [/QUOTE]
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Does a DNO 30mA RCD Isolator satisfy 411.4.204 (411.3.2.2)
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