Earth bar test links

Former Community Member over 4 years ago

I've been looking at an earthing schematic from a recent hospital installation and noted that the main earth bar was equipped with a test link, but the main LV panel earth bar wasn't.

Can someone explain if this is correct as I expected to see test links on both?

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0 Former Community Member over 4 years ago

Thanks Andy

My example was a hospital, but I've seen this many times and only just queried why it is. Seems that the main MET bar requires it, but not elsewhere.

Also many moons ago I remember that distribution boards in risers had a separate earth bar which connected to the local vent, domestic and heating pipework on that level. Haven't see that for along time now. Presumably it was regarded as overkill.
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0 Former Community Member over 4 years ago

Thanks Andy

My example was a hospital, but I've seen this many times and only just queried why it is. Seems that the main MET bar requires it, but not elsewhere.

Also many moons ago I remember that distribution boards in risers had a separate earth bar which connected to the local vent, domestic and heating pipework on that level. Haven't see that for along time now. Presumably it was regarded as overkill.
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Earth bar test links

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