OP
MTI
cheers electro for the info so far. ignore the seperate earth question-was just checking. as swa is 3 core and not relying on sheath as main earth then all is well.
single phase 100A? correct me if wrong but although some propertys have 80 or 100 amp slow blow cut out, you can only physically draw 80A from any single phase supply? an engineer told me this and i just took his word for it.
think ill go with 25mm for what its worth and no questions asked. price is good so not bothered really and will avoid calcs as you mentioned
if i have seperate earth conductor combined within swa (3 core) and its earthed via nut, banjo and gland on isolator, surely its not mandatory to bond at plastic cu? may do it anyway but any advice most appreciated mate.
all companys i have worked for, have fitted 2 core subs and seperate earth to mutli story appartments etc but not bonded swa sheath at final cu.same goes with 3 core subs too. suppose its good practice but not as necessary with 2core and seperate earth
also, wont swa of say 5m take 100A? correct me if wrong? still going with 25mm but just out of interest
sorry, meant 16mm swa taking 100A+ ?
single phase 100A? correct me if wrong but although some propertys have 80 or 100 amp slow blow cut out, you can only physically draw 80A from any single phase supply? an engineer told me this and i just took his word for it.
think ill go with 25mm for what its worth and no questions asked. price is good so not bothered really and will avoid calcs as you mentioned
if i have seperate earth conductor combined within swa (3 core) and its earthed via nut, banjo and gland on isolator, surely its not mandatory to bond at plastic cu? may do it anyway but any advice most appreciated mate.
all companys i have worked for, have fitted 2 core subs and seperate earth to mutli story appartments etc but not bonded swa sheath at final cu.same goes with 3 core subs too. suppose its good practice but not as necessary with 2core and seperate earth
also, wont swa of say 5m take 100A? correct me if wrong? still going with 25mm but just out of interest
sorry, meant 16mm swa taking 100A+ ?
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