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Neutral - Earth Link in Main Switchboard

Nick Parker
When is an earth neutral link required in an main switchboard? Is it particular to the earthing system?


Is it common to earth the source neutral at the first point in the LV system where the neutral is terminated - the main LV switchboard. 


If the Neutral terminal of the transformer is grounded near the transformer and if it is interconnected with the other earth rods/bars? Is still neural - earth link to be provided at the Main switchboard?
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    Surely, we need to link the neutral[N] conductor to the Earth[E] in the consumers board to make sure we can hold the bonded metalwork in the house down to a low potential. The use of initials like CPC confuse me as the live phase wire is [L] not [P] and earth[E] and not [T]..[C] is something else I guess?
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    Surely, we need to link the neutral[N] conductor to the Earth[E] in the consumers board to make sure we can hold the bonded metalwork in the house down to a low potential. The use of initials like CPC confuse me as the live phase wire is [L] not [P] and earth[E] and not [T]..[C] is something else I guess?
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