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Electrical Photo Forum
To Earth or Not To Earth.. that is the question?
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<blockquote data-quote="SPECIAL LOCATION" data-source="post: 526860" data-attributes="member: 250"><p>My general preference has always been...</p><p></p><p>A metal light switch IS an exposed conductive part and MUST be earthed</p><p></p><p>A metal back-box, (once the accessory is fitted) is NOT exposed in NORMAL use.</p><p></p><p>If an accessory front has been opened up.</p><p>Then.. Unless you have some really good proven reasoning..</p><p>the power should be OFF anyway, before you open the switch !!!!!!!!!!!!</p><p></p><p>Basically I would not use the back-box earth as the primary source of CPC termination when an accessory ALSO needs a CPC connection...</p></blockquote><p></p>
[QUOTE="SPECIAL LOCATION, post: 526860, member: 250"] My general preference has always been... A metal light switch IS an exposed conductive part and MUST be earthed A metal back-box, (once the accessory is fitted) is NOT exposed in NORMAL use. If an accessory front has been opened up. Then.. Unless you have some really good proven reasoning.. the power should be OFF anyway, before you open the switch !!!!!!!!!!!! Basically I would not use the back-box earth as the primary source of CPC termination when an accessory ALSO needs a CPC connection... [/QUOTE]
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To Earth or Not To Earth.. that is the question?
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