>
>In the US power distribution system, I understand that the neutral is
>connected
>to ground at the point of entry to the property's distribution board.
This is true. Ground is from a local ground rod.
>Do the
>electricity company provide a ground wire in parallel with the neutral,
Not on my service box.
>or is
>the ground purely a local ground from a ground rod or similar?
>
>Is their any fault detection on that ground connection so that a ruptured
>neutral won't lead to the return current being through that ground
>connection?
Not on my service box. GFI and RF do get on well. My guess is that GFI
designers probably don't know what RF is.
>
>Are cables witha metallic sheath used in the US, with the sheath being the
>neutral?
None that I have seen, Peter.
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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