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beanzntoast
Hi,firstly just to introduce myself which i think would be rude if i didn't seen as i'm new to the forum & asking for advise,i'm jason & through studying & self taught i have learnt & found out quite alot about electrics with alot more to learn,i am on a course studying 2330 level 2,3 & nvq level 3, the question is on a TNC-S earthing system am i right in saying that the neutral & earth are connected together at the supply side only & they seperate at the consumers side to give two seperate conductors,if this is correct what advantages does it have over a TN-S( why is it used more than the TN-S on new installations is it supposed to be safer because it is connected to earth at various points from the supply transformer).If this is true could somebody explain how come at the points where it is connected to earth by the use of earthing cables running down the side of wooden electric poles on the supply side,that why at these points they dont carry voltage/current to earth when the neutral returns the voltage/current to the transformer(i'm obviously missing something somewhere)
.if i've got this wrong i apologise in advance but if so could somebody correct me
cheers jason
.if i've got this wrong i apologise in advance but if so could somebody correct me cheers jason
