planetester
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| posted on 17/1/05 at 07:27 PM |
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fusible links
Has anyone used fusible links close to their battery to save the wiring loom in case of a major short circuit, if so are there any cars in the scrap
yards that have them as a unit that can be fitted close to the battery before the large cables go to the fuse box & ignition switch.
thanks all
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ady8077
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| posted on 17/1/05 at 08:52 PM |
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Hi
My donors Sierra's loom had fusable links, just the first couple of inches of each main cable. I didn't like the idea so bought a twin 60
amp fuse box from maplins and mounted it next to the batery, see
http://www.maplin.co.uk/Module.aspx?ModuleNo=30429&TabID=1&worldid=1&source=14&doy=17m1
Adrian
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craig1410
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| posted on 17/1/05 at 09:13 PM |
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Hi,
Don't take this the wrong way as I don't mean to be critical but do you really think that using fusible links is necessary on a
"Seven"? I did consider it but came to the conclusion that judicious use of standard fuses and relays along with careful routing of the
permanent live wires was sufficient.
As far as I am aware, fusible links are mainly used to protect the permanent +12V wiring in the event of a crash where wires may become crushed by the
chassis or engine. They are no substitute for poor design and even if you fit say a 60A fusible link, a 15A wire will still fry.
I feel that the wiring of the Seven is minimalist enough that the permanently live wires can be protected sufficiently without the need for fusible
links. After all, you need to protect the hot end of the fusible links and the associated wiring anyway.
My intention for what it's worth is to run a small number of feed wires as directly as is practical between the battery and the fuse/relay box.
This will only be about 15" tops and I will protect the wires carefully with sleeving of some sort. I'm using 16 fuses and have capacity
for 8 relays although I'll probably only use 6 initially.
I hope this helps and once again, please don't take my comments as criticism. This is simply my opinion.
Cheers,
Craig.
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planetester
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| posted on 17/1/05 at 09:19 PM |
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Hi Craig, I'm trying to match up a sierra fuse box & steering column to a escort wiring loom & I agree that careful running of the
cables should not need the link but I thopught it was the way modern cars have gone & I thought I would follow, I no modern cars need much more
power, the abs pump on my honda has a 50 amp fuse by itself, no offence taken, good luck
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ady8077
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| posted on 17/1/05 at 09:21 PM |
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Hi Craig
My twin 60amp fuses feed my 2 normal fuse boxes, one permanent +12v and one ign +12v
Every wire is protected by a correct size fuse which is something the Sierra's loom isnt, the main +12v cable on the sierra loom had loads of T
joints, at each joint the take off cable is smaller than the main
Hope this explains it better
Adrian
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planetester
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| posted on 17/1/05 at 09:42 PM |
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Hi Adrian, you are right about the sierra, my fuse box has the two large cables comming from the battery but they are crimped together very near the
fusebox & then there are cables even larger inside the fusebox itself, like you say, I think you should have one for ignition controlled & one
for non ignition, just followed your link & it looks just what I want,
thanks
[Edited on 17/1/05 by planetester]
[Edited on 17/1/05 by planetester]
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