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Discuss r1+r2 reading in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net

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beaver74

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on a pme system wre a rod is used to seperate metal parts from pme terminal how would you record r1+r2 of cpc conected to rod and r1+r2 of cpc conected to pme terminal ie swa


got some external lighting in midle of a lawn wired in swa and armer is continious but seperated from fitting metal work so that swa will have a good earth loop reading
earth conductive part of lighting is conected to 3 rods spead around circuit via 3rd core of swa so as to seperate from pme terminal but the circuit will have rcd protection at the main intake so r1+r2 of swa and r1+r2 of lighting circuit on the rod can not be recorded together as they are seperate
 
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Dont quite understand what your saying, but the supply authorities seriously frown upon you using a pme system out side the equipotential zone. therefore you should have created a seperate tt system for what ever you are supplying outdoors. You only need verify your Ra and/ or R2.
 
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beaver74

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Dont quite understand what your saying, but the supply authorities seriously frown upon you using a pme system out side the equipotential zone. therefore you should have created a seperate tt system for what ever you are supplying outdoors. You only need verify your Ra and/ or R2.
the system will be t.t as 3rd core of swa is seperated from pme and attached to a rod
 
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