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Zs formula
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<blockquote data-quote="gazzam" data-source="post: 9651" data-attributes="member: 836"><p>A 300ma Rcd Is Not Used For Personal Protection Its 30ma Max There For The 300ma Would Protect The Whole Installation (fire Protection)and The 30ma For All Things Outside The Equipotential Zone</p><p></p><p>Sorry If Im Missing The Point</p></blockquote><p></p>
[QUOTE="gazzam, post: 9651, member: 836"] A 300ma Rcd Is Not Used For Personal Protection Its 30ma Max There For The 300ma Would Protect The Whole Installation (fire Protection)and The 30ma For All Things Outside The Equipotential Zone Sorry If Im Missing The Point [/QUOTE]
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Zs formula
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