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why do fuse boxes have lids?

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Andyk
Borekit Bruiser



Joined: 17 Dec 2012
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PostPosted: 10:18 - 06 Oct 2014    Post subject: why do fuse boxes have lids? Reply with quote
ok this may be a dumb question but the fuse box on my bike is above the battery and yet still if fully enclosed with a lid? apart from the label which shows which fuse is which what is the purpose of it being fully enclosed?
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doggone
World Chat Champion



Joined: 20 May 2004
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PostPosted: 10:20 - 06 Oct 2014    Post subject: Reply with quote
Salty road spray gets everywhere and that won't do it much good inside after two or three winters?
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map
Mr Calendar



Joined: 14 Jun 2004
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PostPosted: 10:44 - 06 Oct 2014    Post subject: Re: why do fuse boxes have lids? Reply with quote
Andyk wrote:
...what is the purpose of it being fully enclosed?

It's to keep the lektric pixies nice and safe and warm.
These are not to be confused by the engine fairies that like to make stuff go bang.

...genuine insight into motor mechanics there. Ask anyone Wink
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iooi
Super Spammer



Joined: 14 Jan 2007
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PostPosted: 10:56 - 06 Oct 2014    Post subject: Re: why do fuse boxes have lids? Reply with quote
Andyk wrote:
what is the purpose of it being fully enclosed?



Water + electrics = Embarassed
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Andyk
Borekit Bruiser



Joined: 17 Dec 2012
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PostPosted: 11:21 - 06 Oct 2014    Post subject: Re: why do fuse boxes have lids? Reply with quote
iooi wrote:
Water + electrics = Embarassed


See thats what i thought but its right above the battery (in the same enclosure) which would mean that if the fuse box got wet the battery is soaked.... unless its a generic part they just fit? Confused
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G
The Voice of Reason



Joined: 02 Feb 2002
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PostPosted: 12:40 - 06 Oct 2014    Post subject: Re: why do fuse boxes have lids? Reply with quote
Andyk wrote:

See thats what i thought but its right above the battery (in the same enclosure) which would mean that if the fuse box got wet the battery is soaked.... unless its a generic part they just fit? Confused

There's a reason that bike batteries typically have the terminals a fair bit apart - often also with some plastic protection so a straight bit of metal can't short it out.

While in a fuse box you can still have a good few amps, but with the contacts very close to each other.
You've also got fuse terminals held in with friction, PCB underneath often - ideal places for corrosion to cause issues, vs a bolted on terminal with big connectors.
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weasley
World Chat Champion



Joined: 16 Oct 2010
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PostPosted: 12:41 - 06 Oct 2014    Post subject: Reply with quote
The terminals on a battery are so far apart that splashing with water is highly unlikely to lead to any shorting. With fuses, there is much greater chance of shorting across the fuse or to another circuit.
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virus
World Chat Champion



Joined: 16 Aug 2006
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PostPosted: 17:22 - 06 Oct 2014    Post subject: Reply with quote
Its so that when the fusebox terminals are so worn from repeated replacement of fuses that they no longer keep the fuses in when riding, you can fill the lid out with blutack to make sure they stay in thanks to the lid clips. Embarassed Laughing



Cheers
John
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owned: 85 rat CG (sold), 91 GS500e (stolen), 84 gsx400f (scrapped), 81 z250 (siezed, siezed, scrapped), 83 cb250rs (sold), 84 gpz750r ratfighter (killed) 84gpz400 (sold), '80 cb650 ratfighter (wrote off) 95gsx6/12f ratfighter (killed) 91 xj900 (sold)
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blackbosh
Nova Slayer



Joined: 07 Aug 2014
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PostPosted: 20:32 - 06 Oct 2014    Post subject: Reply with quote
I had to have a fuse box replaced under warranty because the lid er cough mustn't have been closed correctly at manufacture causing a lot off corrosion and dead electronics. No warning just clunk - stranded
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nowhere.elysium
The Pork Lord



Joined: 02 Mar 2009
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PostPosted: 20:43 - 06 Oct 2014    Post subject: Reply with quote
virus wrote:
Its so that when the fusebox terminals are so worn from repeated replacement of fuses that they no longer keep the fuses in when riding, you can fill the lid out with blutack to make sure they stay in thanks to the lid clips.
Spot the ratbiker Laughing
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