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Electrical Inspection & Testing Forum
Zs live Testing - does everyone do it?
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<blockquote data-quote="ian932" data-source="post: 35490" data-attributes="member: 1533"><p>I can't see the issue with doing Zs on lighting all you need is a set of these.</p><p></p><p><a href="http://www.ekmpowershop6.com/ekmps/shops/napitservices/new-kewtech-lightmates----------------bulk-buy-offer-53-p.asp" target="_blank">NEW Kewtech Lightmates Bulk Buy Offer </a></p><p></p><p>Ok maybe your meter sets the RCD off but a changing the RCD for a DP breaker during testing would fix that. IMO EFLI is more important than calculated Zs as its a live function test.</p><p></p><p>On the topic of Zs being recorded on the form using R1, R2 and Ze you need to also take account of Correction factors for ambient if you are using tables in the red book, its better to use the OSG tables as they are adjusted to around 20% less. The red book figures are for 70deg operating temps.</p></blockquote><p></p>
[QUOTE="ian932, post: 35490, member: 1533"] I can't see the issue with doing Zs on lighting all you need is a set of these. [URL="http://www.ekmpowershop6.com/ekmps/shops/napitservices/new-kewtech-lightmates----------------bulk-buy-offer-53-p.asp"]NEW Kewtech Lightmates Bulk Buy Offer [/URL] Ok maybe your meter sets the RCD off but a changing the RCD for a DP breaker during testing would fix that. IMO EFLI is more important than calculated Zs as its a live function test. On the topic of Zs being recorded on the form using R1, R2 and Ze you need to also take account of Correction factors for ambient if you are using tables in the red book, its better to use the OSG tables as they are adjusted to around 20% less. The red book figures are for 70deg operating temps. [/QUOTE]
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