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Re: Cooker Hood and Gas Hob (mains) supply |
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| message from Stuart on 11 May 2004 |
I cant see any need to isolate the hood from the mains just to change the
filters . Nor for changing the lightbulb-just make sure the switch on the
hood is "off".
Stuart
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| Richard Savage replied to Stuart on 11 May 2004 |
Nor can I but the installers will not connect the hood direct to the
ring main.
Rgds Richard
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| Dave Plowman replied to Richard Savage on 12 May 2004 |
Any appliance connected to the ring main needs to be protected by a fuse -
either in a plug or FCU.
It's common to connect cooker hoods to the lighting circuit where no
separate fuse is needed.
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| Lurch replied to Dave Plowman on 12 May 2004 |
So common in fact, that in all my years as an electrician I've never
seen one connected to a lighting circuit.
You still need an isolator though, and if the destructions say 3A fuse
max, a 6\10A MCB won't do, and technically invalidates the warranty.
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| Dave Plowman replied to Lurch on 12 May 2004 |
That's electricians for you - no imagination. In many cases it's easier to
access a lighting circuit than the ring due to the position.
And just how would they know what fuse was fitted?
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| Lurch replied to Dave Plowman on 12 May 2004 |
They're better of on the ring, when the bulb blows it doesn't take a
32A MCB out, it more than likely will on a 6A, or with any other minor
fault type condition.
I did say technically. Although if one of the manufacturers happened
to send an engineer out, then....
And yes, I know it's very unlikely but technically.
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| Lurch replied to Lurch on 12 May 2004 |
True.
I think I was justifying my own reasoning really, I'll stick to
putting them on the ring but a lighting cct is a perfectly acceptable
solution also.
There, WW3 avoided!
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| Lurch replied to Richard Savage on 12 May 2004 |
That's because it's what the regs say. Something along the lines of
each fixed appliance shall be served by a DP isolator. Also, as a
cooker hood is usually 3A, and a ring is 32A, there's not much chance
of the MCB blowing until the kitchens on fire.
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Archived message: Re: Cooker Hood and Gas Hob (mains) supply (UK DIY Home Decoration)
