Maximum earth fault loop impedance for a BS1362 fuse

Newspark · 5 Jun 2005

Could someone please tell me the maximum earth fault loop impedance for a BS1362 3A fuse or where I can find the info. I need both 5sec and 0.4 sec disconnection times. The 13A spec is in the regs but not the 3A.

Jaymack · 5 Jun 2005

Probably not included in the regs, since no guarantee that a user would fit that fuse rating in a 13A plug. (Worst case situation adopted).

pdcelec · 5 Jun 2005

I am just wondering why you need the information?

Newspark · 5 Jun 2005

I was told by an NICEIC inspector to add it to a minor works cert for a fused spur supplying a spa bath. He said not only to mention the 32A ring breaker Zs but also to split the box and add the spec for the 3A fuse as well. What do you reckon?

kendor · 5 Jun 2005

The tables are for specific devices such as the BS1362 etc so as long as the readings fall within the specs of that you are ok, so no need to bring the rating into it?

ban-all-sheds · 5 Jun 2005

Newspark said:
I was told by an NICEIC inspector to add it to a minor works cert for a fused spur supplying a spa bath. He said not only to mention the 32A ring breaker Zs but also to split the box and add the spec for the 3A fuse as well. What do you reckon?

I reckon that's NICEIC making up their own regulations, again...

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Maximum earth fault loop impedance for a BS1362 fuse

Newspark

Jaymack

pdcelec

Newspark

kendor

ban-all-sheds

DIYnot Local

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