Quote:
Originally Posted by Dave Moll
There would also be the same voltage between mains earth and the ground, so the radio earth isn't really substantially increasing the danger.
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That is why the equipotential bonding requirements are more stringent for a PME installation.
There is, AFAIK, no requirement to bond guttering and similar extraneous metalwork which is unlikely to become live. (Trying to steer it back on topic!)