Discuss High Zs reading how to rectify in the Electrical Forum area at ElectriciansForums.net

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BristolSpark

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Hi Guys

Just wondering again your thoughts on the following if you have a high Zs reading, what is the best way of rectifying it.

say you have a BS60898 mcb type b 32a max Zs is 1.15 ohm. So if you took a reading when measured of say 2.23 ohms what is the best to fix this or remedy it.

I took a reading of this today on a socket in a porta cabin on a construction site. the RCD tripped ok at 23.6ms, so that was ok. But the Zs seemed awful.

Some good feedback would be great.

Thanks
 
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Spudnik

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mark vernon

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