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Lighting wiring
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<blockquote data-quote="Doc Hudson" data-source="post: 494292" data-attributes="member: 1607"><p>It would be very interesting for other forum members on here, if you could confirm that you have checked the Zs readings for the circuit are still within the characteristics for a C type breaker? By my rough calculations swapping a 6amp 'B' to a 6amp 'C' reduces the max permissible circuit length by about 100m if using 1.0mm T&amp;E. [ Max permissible Zs from 7.28 to 3.64, i.e. loose 3.64ohms worth of R1+R2 ] </p><p></p><p>If installation methods permit, It may also have been possible to use a 10amp 'B' which could have 'cured' your problem. This only looses approx. 80m length of 1.0mm T&amp;E), rather than a 6amp 'C'. [ Max permissible Zs from 7.28 to 4.37, i.e. loose 2.91ohms worth of R1+R2 ]. If you get chance JohnMir, please post up your test readings/calcualtions, Did you issue and MWC as Sidewinder correctly points out?</p><p></p><p>Doc H.</p></blockquote><p></p>
[QUOTE="Doc Hudson, post: 494292, member: 1607"] It would be very interesting for other forum members on here, if you could confirm that you have checked the Zs readings for the circuit are still within the characteristics for a C type breaker? By my rough calculations swapping a 6amp 'B' to a 6amp 'C' reduces the max permissible circuit length by about 100m if using 1.0mm T&E. [ Max permissible Zs from 7.28 to 3.64, i.e. loose 3.64ohms worth of R1+R2 ] If installation methods permit, It may also have been possible to use a 10amp 'B' which could have 'cured' your problem. This only looses approx. 80m length of 1.0mm T&E), rather than a 6amp 'C'. [ Max permissible Zs from 7.28 to 4.37, i.e. loose 2.91ohms worth of R1+R2 ]. If you get chance JohnMir, please post up your test readings/calcualtions, Did you issue and MWC as Sidewinder correctly points out? Doc H. [/QUOTE]
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