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Student & Learning Zone - City & Guilds
PEFC - Design Vs testing
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<blockquote data-quote="DonClif" data-source="post: 555403" data-attributes="member: 36659"><p>This perfectly sorts my confusion.</p><p>Thank you.</p><p></p><p>I suppose i was wondering why we don't physically record fault currents at the end of a circuit, like with the PEFC/PSCC tests at the origin, but as you say the Zs covers that.</p><p></p><p>Also, am I understanding correctly that the Ia is the fault current required to operate the device in any of the times specified in the 'curve graphs' in Appendix 3? Or is it specifically the times in the tables to the right of the same graphs?</p><p></p><p>I've got a reasonably good understanding of how to test, and what each test is for, and I'm currently flying through my level 4 design, but connecting the dots between theory and practical sometimes has me in a bit of a mix.</p><p></p><p>I'll get there...</p></blockquote><p></p>
[QUOTE="DonClif, post: 555403, member: 36659"] This perfectly sorts my confusion. Thank you. I suppose i was wondering why we don't physically record fault currents at the end of a circuit, like with the PEFC/PSCC tests at the origin, but as you say the Zs covers that. Also, am I understanding correctly that the Ia is the fault current required to operate the device in any of the times specified in the 'curve graphs' in Appendix 3? Or is it specifically the times in the tables to the right of the same graphs? I've got a reasonably good understanding of how to test, and what each test is for, and I'm currently flying through my level 4 design, but connecting the dots between theory and practical sometimes has me in a bit of a mix. I'll get there... [/QUOTE]
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PEFC - Design Vs testing
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