Short circuit capacity

too old to learn · 27 Dec 2009

Hi,
could anyone tell me what the short circuit capacity of this main incoming fuse is? It does not state anywhere on it whether it is a S1A, S2A or S3A?
Thanks

Untitled

too old to learn
26 Oct 2009
2

Lectrician · 27 Dec 2009

Depends what fuse is in the carrier, likely a BS88 or 1361, although there is a chance it is a rewireable.

You should not be in the service head, and I would not like to be messing with an old cast iron one like that.

RF Lighting · 27 Dec 2009

It's a BS3036, 3kA. But you should not be interfering with DNO equipment, and especially not cast iron ones.

too old to learn · 27 Dec 2009

Thanks guys, I appreciate the fact that I (as not been a DNO employee) should not be messing around with the service head and do understand that these ones especially could be easily broke since they are old and can be very brittle.

Thanks to one and all, may all of you have a prosperous new year

)

RF Lighting · 27 Dec 2009

They also contain asbestos, so not the best thing to mess about with.

Taylortwocities · 27 Dec 2009

Looks like a Lucy
Is it?

RF Lighting · 27 Dec 2009

It's an Isco

Lectrician · 27 Dec 2009

Is Isco Lucy and Henley's offspring?

too old to learn · 27 Dec 2009

so me been daft

whats a lucy whats an isco

333rocky333 · 27 Dec 2009

Its the make of the unit.
It is stamped on the front of the door.

oharaf · 28 Dec 2009

as the lads have said be VERY careful. I phone DNO and inform them it is cast iron, generally change within a fortnight, free of course

djrichie_t · 28 Dec 2009

I used to work on the electricity board and have come across a few of these. Give your electricity supplier a call and they will upgrade it to a 100 amp cut-out free of charge

Inform them that its very old and brittle.

ban-all-sheds · 29 Dec 2009

Is it any more brittle than the day it was made?

I always thought it was extremely stable substance - look how long lived pottery is, and that the sort of age this cutout has would make no difference to it.

mikhailfaradayski · 29 Dec 2009

ban-all-sheds said:
Is it any more brittle than the day it was made?

im not sure thats what djrichie was getting at.

I always thought it was extremely stable substance - look how long lived pottery is, and that the sort of age this cutout has would make no difference to it.

again, not sure that was the intended purpose of richie's suggestion.

the head wants changing, preferably cost-free

ban-all-sheds · 24 Feb 2010

Sorry - it was the way he said "very old and brittle", as if the two were linked, i.e. its age affected its brittleness....

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Short circuit capacity

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