View the thread, titled "Bare 50Hz AC 3 Phase Bus bars...what is safe voltage to use" which is posted in UK Electrical Forum on Electricians Forums.

Hi Hi,
We will have isolated three phase bus bars. Fully Mains transformer isolated. (mains input is 240VAC phase to neutral)
We're going to step down the 3 phase mains to the bus bars using a 50Hz 3 phase transformer.
What is the highest VAC level that these bare bus bars can be at and not be a danger to humans touching them?
(ie touching one bus bar, and also touching between two bus bars with each hand)

Also, i presume we have to have the neutral output of the three phase transformer earthed...otherwise the 3 phase output will be floating and could potentially float up to a dangerous level?
 

Reply to the thread, titled "Bare 50Hz AC 3 Phase Bus bars...what is safe voltage to use" which is posted in UK Electrical Forum on Electricians Forums.

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Title
Bare 50Hz AC 3 Phase Bus bars...what is safe voltage to use
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UK Electrical Forum
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treezleef,
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ElectroChem,
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