Neutral Point of Heater Bank

Not always failed completely though Geoff, I've seen motors running quite happily with 20-30% imbalance in the current draw across the phases.


It is certainly not required in any of the machinery electrical standards and this would be out of the scope of BS7671 anyway.


To me it's not a neutral point, a neutral point originates at the supply.

This is a common point of connection in a load.

If the supply is being skewed that much by a single heater failure then I would think you have got bigger problems.

I've just seen that your example was ship board, sorry I don't think that's comparable.

In that scenario I would agree totally that a different approach is required, but fed by the national grid I don't agree.

Not always failed completely though Geoff, I've seen motors running quite happily with 20-30% imbalance in the current draw across the phases.


It is certainly not required in any of the machinery electrical standards and this would be out of the scope of BS7671 anyway.


To me it's not a neutral point, a neutral point originates at the supply.

This is a common point of connection in a load.

If the supply is being skewed that much by a single heater failure then I would think you have got bigger problems.

I've just seen that your example was ship board, sorry I don't think that's comparable.

In that scenario I would agree totally that a different approach is required, but fed by the national grid I don't agree.