POLL: Fuses

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Onboard Fuses

Poll ended at Tue Feb 14, 2017 12:41 pm

Always have an in-line fuse
10
48%
Have sometimes run without fuse (more than 2 months)
4
19%
Never bother with fuses
4
19%
-=Just a spacer, Part 2 below=-
0
No votes
Yes, I've had a fuse sacrifice itself
3
14%
 
Total votes: 21
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Hairy Little Dwarf
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Tue Feb 07, 2017 12:41 pm

Recent forum discussion regarding fuses got me wondering... And a good enough excuse for a poll ;)

So...For your onboard electronics (Fishfinder / Fixed VHF / Fridge....), what's your situation with fuses?

This is a 2-parter.
Firstly, do you fuse?

Secondly, have you ever blown a fuse in anger (Corrosion failures not counted)
-If Yes to part 2, do please elaborate

HLD
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MikeAqua
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Tue Feb 07, 2017 2:15 pm

Always use. I can't ever remember blowing one on the kayak.

I've only ever lost a few on the boats I've owned - always the glass tube type.
"No good story begins with a salad"
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Mental
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Tue Feb 07, 2017 2:52 pm

Always have an inline fuse but yea I've been guilty of running without one too when doing a quick install etc or simply not have one on hand...

Never blown a fuse on a fish finder :y:
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Limitless
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Tue Feb 07, 2017 5:44 pm

I've blown a fuse connecting my fixed mount VHF with the polarity the wrong way round :headbang: - the fuse blew and saved the radio though :y:

I've also done a new installation where the sounder power lead had a short in the plug moulding (despite the "factory tested" label). That gave me pause: what if it happened on the water and there wasn't a fuse to stop the wiring heating up?
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TwoSpoons
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Wed Feb 08, 2017 10:34 am

Given the amount of energy in the battery, and its ability to deliver a lot of current, it would be foolish not to have a fuse in the main battery line at least. A fuse is cheap insurance.
the fuse blew and saved the radio though
Actually its subtly different: the radio saved itself by blowing the fuse. Usually this sort of gear will have a big fat diode across the power terminals for precisely this purpose: to blow an external fuse if someone hooks up the power backwards.

Fuses exist to prevent fires, not save equipment.
Last edited by TwoSpoons on Wed Feb 08, 2017 10:56 am, edited 1 time in total.
Electronics : its still magic, even when you know how its done.
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AndrewRawlingson
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Wed Feb 08, 2017 10:47 am

Reading with interest. Need a confused/don't know option in the poll :P
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awondering
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Wed Feb 08, 2017 11:58 am

Had a ff Fuse blow at the beach... No reason why it happened... stupid thing is and I know it was, I just hard wired it and headed out anyway, rewired next day with new fuse, been sweet as ever since :|

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MikeAqua
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Wed Feb 08, 2017 12:05 pm

Limitless wrote:I've blown a fuse connecting my fixed mount VHF with the polarity the wrong way round :headbang: - the fuse blew and saved the radio though :y:
I wasn't counting install errors, but yes I've done a few of those too :$ . Like drop the hot feed for a switch onto the negative bus bar ... :doh:
"No good story begins with a salad"
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Hainesy
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Wed Feb 08, 2017 12:25 pm

I've always used a fuse...one of those ones with a supposed waterproof rubber case and i liberally coat the blade fuse and inside the holder with Lanocote grease
"The trouble with common sense is that it's not too common !"

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AndrewRawlingson
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Wed Feb 08, 2017 11:49 pm

Well, I caved. The thought of fires and explosions at sea was just too much, so bought one of these from Burnsco.

http://www.burnsco.co.nz/shop/shop-all/ ... use-holder" onclick="window.open(this.href);return false;

I'm sure someone is going to tell me it's no good/the wrong kind etc. :rofl:
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MikeAqua
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Thu Feb 09, 2017 11:06 am

They look very similar to the BEP ones.

A bit of sealant under the lid and no worries.

If the wire isn't tinned already I would tin the exposed ends.
"No good story begins with a salad"
ZMT-7387
Viking Profish 400Stolen!! Yellow/Black
'Zespri' Viking Espri
Viking 2+1 Stolen!! Orange/yellow with scratch along one side

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awondering
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Thu Feb 09, 2017 12:54 pm

These are what I use, and the lamp does come on when the fuse has blown, easy in the dark morning then >>> https://www.jaycar.co.nz/30a-blade-fuse ... d/p/SZ2042

WEE WILLY
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Thu Feb 09, 2017 4:03 pm

Yes always, Only had fuses blow when charging multiple batteries in parallel without diodes :headbang:
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