5a to 6a

ashley124 · Posted: Sun Oct 01, 2006 12:28 am Post Subject: 5a to 6a

can i change a 5a fuse to a 6a for my lighting circuit?

Many thanks

C&GStudent · Posted: Sun Oct 01, 2006 12:33 am Post Subject:

Yes

Spark123 · Posted: Sun Oct 01, 2006 4:14 am Post Subject:

I take it you mean a 5A fuse to a 6A MCB? Providing the efli is acceptable it can be changed. If you don't know the efli value then I urge you to get a pro in.

Steve · Posted: Sun Oct 01, 2006 10:17 am Post Subject:

Spark123 wrote:

I take it you mean a 5A fuse to a 6A MCB? Providing the efli is acceptable it can be changed. If you don't know the efli value then I urge you to get a pro in.

I think he prefered the first answer.

ban-all-sheds · Posted: Sun Oct 01, 2006 10:24 am Post Subject:

It will be interesting to see how he reacts to advice he doesn't like....

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securespark · Posted: Sun Oct 01, 2006 11:03 am Post Subject:

Listen, I bought this effin house with all my own (well, maybe Daddy's) money, and I'll do as I effin well please. I don't know why I bothered coming on here. You're all useless t**t, and if you dare to cross me I'll break your bleedin' arms!

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plugwash · Posted: Sun Oct 01, 2006 11:57 am Post Subject:

if the EFLI of a 1.0mm lighting circuit protected by a B6 (or even a C6 or B10) doesn't meet on the kind of cable lengths you'd get in a normal house the installation or it's supply is seriously f*cked up.

ban-all-sheds · Posted: Mon Oct 02, 2006 8:05 am Post Subject:

21m for 1mm² on a B10.

So one circuit on a 2-storey 3-bed house, cable ambles and zigzags around in the ground floor ceiling, then does the same in the loft...

Not beyond possibility that it might go over that....

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plugwash · Posted: Mon Oct 02, 2006 8:09 am Post Subject:

i'm sure i did the calculations and came up with a figure much higher than that for the cable length.

dingbat · Posted: Mon Oct 02, 2006 8:35 am Post Subject:

That 21m is based on volt drop at a full load of 10A. The EFLI would be well within the limit, but the circuit lengths in Table 7.1, OSG are more often than not based on volt-drop rather than EFLI.

ban-all-sheds · Posted: Mon Oct 02, 2006 8:55 am Post Subject:

Yeah - you're right - I was in a hurry, and didn't follow it through properly

If EFLI is the limit, the OSG flags that, doesn't it (e.g 9m if you want to put your lights on a D10).

Anyway - Ashley has gone very quiet - wonder what he's up to.....

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I mustn't warn people that the "experts" on the plumbing forum can't be trusted to tell the truth.

dingbat · Posted: Mon Oct 02, 2006 9:21 am Post Subject:

ban-all-sheds wrote:

Anyway - Ashley has gone very quiet - wonder what he's up to.....

Perhaps he's learned about electrickery the hard way?

I speaks ill of me but my sense of schadenfreude secretly hopes so...

ban-all-sheds · Posted: Mon Oct 02, 2006 8:07 pm Post Subject:

Not too hard, I hope...

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I mustn't warn people that the "experts" on the plumbing forum can't be trusted to tell the truth.

dingbat · Posted: Mon Oct 02, 2006 9:38 pm Post Subject:

I'm a big fan of The Darwin Awards... nuff said.

Pens · Posted: Mon Oct 02, 2006 10:38 pm Post Subject:

ban-all-sheds wrote:

Anyway - Ashley has gone very quiet - wonder what he's up to.....

Based on his previous posts I bet he's tucked up in bed grooming a fresh 100amp BS-88 for his in-cummer