Novel Slant on a PME

IJWS15 · 21 Mar 2007

plugwash said:
Adam_151 said:

Note that there is an exception in the ESQCR, if you are operating an electric guided transportation system (a railway or tramway) you are allowed to use a combined neutral and earth.

Click to expand...

The return on a railway/tramway is the rail the train runs on (apart from some London Underground where there is a fourth rail) so it is a little dangerous if it is not at earth potential.

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Novel Slant on a PME

IJWS15

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