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Discuss testing ring final circuits in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net

A

andy

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when testing ring final circuit , resistance of open ends of phase conductor r1 + resistance of ends of cpc conductor r2 = R1+R2 /4 why is quartered could anybody explain
 
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W

wayne

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four conductors in parrellel ;kirchoffs law; 2 resistors in parrallel =0.5 4 =0.25
 
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