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Gurt big fuse.
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Kleftiwallah



Joined: 27 Oct 2016
Posts: 222
Location: North Wiltshire

PostPosted: Sun Nov 04, 2018 1:28 pm    Post subject: Gurt big fuse. Reply with quote

On the firewall of the BSA was a great big fuse, two sprung posts with a 'paxalin' looking blade between with fuse wire across the posts, It is under a black plastic cover held in place by a spring clip.

Does anyone recognise this description. (1) Is it essential, (2) What is the correct rating and (3) where doss it fit in the circuitry?

If anyone wants a snap of it, please email me and I'll try and send it.

Cheers, Tony.
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Phil - Nottingham



Joined: 01 Jan 2008
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PostPosted: Sun Nov 04, 2018 3:40 pm    Post subject: Reply with quote

Big is relative so a pic is required. What does it supply?
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Kleftiwallah



Joined: 27 Oct 2016
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Location: North Wiltshire

PostPosted: Sun Nov 04, 2018 3:52 pm    Post subject: Reply with quote

Good afternoon Phil,
that is the reason for my detailed description, I cannot figure out how to put snaps on these posts (I have one ready).

I have no idea what it supplies or protects, that's my reason for asking.

Perhaps Paul Fairall could explain in layman's terms?

Cheers, Tony.
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peter scott



Joined: 18 Dec 2007
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PostPosted: Sun Nov 04, 2018 6:02 pm    Post subject: Reply with quote

It sounds like it might be a knife switch rather than a fuse but perhaps it wasn't making good contact and someone has simply wired it shut with wire.

Peter
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Kleftiwallah



Joined: 27 Oct 2016
Posts: 222
Location: North Wiltshire

PostPosted: Tue Nov 06, 2018 9:19 pm    Post subject: Reply with quote

Good evening Peter, by knife switch, do you mean a blade fixed at one side and pivoted to make contact. If so no it aint. The paxalin 'blade' is inserted just like a spade fuse.

I do wish I could send a snap...

Cheers, Tony.
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47Jag



Joined: 26 Jun 2008
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Location: Bothwell, Scotland

PostPosted: Tue Nov 06, 2018 10:20 pm    Post subject: Reply with quote

Tony,

What you describe sounds like the mains box fuses in my house. You have a black Bakelite piece about 1 1/2” long with a blade at each end. Between the blades along a longitudinal hole runs a bit of fuse wire connecting the blades. We’ll call that part the male and the female would be where the wires are connected. A PO has probably been a spark and used what was to hand to make up a ‘master fuse’. Does that sound familiar?

Art
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47Jag



Joined: 26 Jun 2008
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Location: Bothwell, Scotland

PostPosted: Tue Nov 06, 2018 10:22 pm    Post subject: Reply with quote

Tony,

What you describe sounds like the mains box fuses in my house. You have a black Bakelite piece about 1 1/2” long with a blade at each end. Between the blades along a longitudinal hole runs a bit of fuse wire connecting the blades. We’ll call that part the male and the female would be where the wires are connected. A PO has probably been a spark and used what was to hand to make up a ‘master fuse’. Does that sound familiar?

Art
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Penman



Joined: 23 Nov 2007
Posts: 4755
Location: Swindon, Wilts.

PostPosted: Tue Nov 06, 2018 11:39 pm    Post subject: Reply with quote

Hi
2 possible sources of info about BSA Cars, the M/cycle museum has a number of the three wheelers.
http://www.bsafwdc.org/
http://www.nationalmotorcyclemuseum.co.uk/
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Phil - Nottingham



Joined: 01 Jan 2008
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PostPosted: Thu Nov 08, 2018 6:59 pm    Post subject: Reply with quote

Actually, I thought it seemed to the type of mains fuse seen 100 years ago and obsolete by the 70's.

47JAG - if you have them in your home I suggest an urgent safety electrical inspection. These fuses can spray hot molten metal around when they "Blow" Shocked
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47Jag



Joined: 26 Jun 2008
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Location: Bothwell, Scotland

PostPosted: Thu Nov 08, 2018 7:12 pm    Post subject: Reply with quote

Phil,

These are mid-60s vintage. While your point may be valid since all fuses ‘spray hot molten metal’ when they blow there is a containment capability in these in that the fusewire runs through an asbestos sleeve and is enclosed inside the fuse holder. The next owner can rewire the box.

Art
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Kleftiwallah



Joined: 27 Oct 2016
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PostPosted: Fri Nov 09, 2018 1:16 pm    Post subject: Reply with quote

Interesting communications all, 47jag, we also still have the type of fuse in our domicile as you describe. Must get round to having them all replaced with circuit breakers soon.

Have you tried to find fuse wire???

Cheers, Tony. Smile
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MVPeters



Joined: 28 Aug 2008
Posts: 822
Location: Northern MA, USA

PostPosted: Fri Nov 09, 2018 3:42 pm    Post subject: Reply with quote

Kleftiwallah wrote:
............ Have you tried to find fuse wire???
Cheers, Tony. Smile


Tony
The ironmongers in the Bath Guildhall Market has plentiful supplies of fuse wires on little cards.
Not 6d any more, though.
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alastairq



Joined: 14 Oct 2016
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Location: East Yorkshire

PostPosted: Fri Nov 09, 2018 4:37 pm    Post subject: Reply with quote

At a pinch, a 6 inch nail will do the job...never known to blow!!
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