Can anyone aim me towards a supplier of 100mm2 starter cable!Can't seem to locate it anywhere. In case you're wondering it's for a grunty big diesel and is a fairly long run.
bill-robinson,
Sep 23, 1:36pm
J.R.Russell or any electrical suppliers, you need arc welding cable. Bill
fryan1962,
Sep 23, 1:36pm
I bought heavy duty jumper leads. and cut them up
scotthurst01,
Sep 23, 1:38pm
Not quite 100mm though.
That's a pretty heavy cable, as above, Russells or similar, though they may need to order it in.
fryan1962,
Sep 23, 1:46pm
these were in oz they were heavier than our arc welder 500amp cable would be similar diameter to 50 cent circle, I got them at super cheap
mrfxit,
Sep 23, 3:14pm
WT***** 4 INCH cable
petermcg,
Sep 23, 3:19pm
Yeah arc welder cable is good nice and flexible,, but the power service guys will have some offcuts also but it will be hard drawn.
Better to work out our amperage draw before you go spending shite loads on something thats going to be a biarch to handle & solder .
You ARE going to crimp AND solder the ends. aye!
mrfxit,
Sep 23, 3:25pm
Just replaced all the battery cables on my Diesel Hilux, made a hell of a difference with 1/3 bigger cables AND crimp & solder all the clips etc.
owene,
Sep 23, 3:28pm
Thanks. Yep that's why I'm going up to the bigger stuff, have sourced some 70mm - many thanks everyone.
owene,
Sep 23, 3:29pm
100mm cable aint 4"! Can someone enlighten mrfkit!
fordcrzy,
Sep 23, 3:31pm
100mm cable is actually 100mm squared, not 100mm diameter. arc welding cable is usually 35mm2. although you can get the smaller 16mm2 cable also for arc welding.
owene,
Sep 23, 3:33pm
Mr Fkit: do the sums. A hunk of 100mm cable. Divide the 100 by 3.147 to get 31.776. Then get the square root of that to get the radius which is 5.637. Then double it to get the diameter which is 11.274. So a cable of diameter 11.274mm is called 100mm cable as it's 100 square mm's of cross-sectional area. Make sense!
gmphil,
Sep 23, 3:34pm
look for sum old welding leads on trade me
owene,
Sep 23, 3:34pm
Yep and for the unititated, the smaller the cable, the greater the voltage drop per metre for a given amperage. Long runs = big mfkr cables.
owene,
Sep 23, 3:35pm
Yep I got some 70mm from J A Russell - thanks Bill.
fryan1962,
Sep 23, 4:25pm
My car is 6 volt so that is why I went with bigger cable,Much better
mrfxit,
Sep 23, 5:31pm
LOL already know some of that & YES do realise what you were wanting, hence the link to the chart to see if that helps at all just stirring seeing as we DO get some pretty good & amusing "requests" from time to time
cjdnzl,
Sep 23, 6:45pm
No, it isn't, it's not 100mm^2, it's 100 square millimetres, a big difference.100mm^2 equals 100 x 100mm, or 10,000 square millimeters.That would be some cable.
fryan1962,
Sep 23, 7:17pm
I am still thinking those jumper leads would have been fine for any diesel they are big enough they could double as tow cable
mrfxit,
Sep 23, 7:22pm
The size of the cable is of less importance compared to the electrical resistance property's of the core. For automotive use. it also needs to be flexible
owene,
Sep 23, 9:43pm
There's a contradiction as the electrical resistance is a direct function of the cable size.
mrfxit,
Sep 24, 5:37am
Only in part, Also. Quality grading& type of metal used Number of strands Size of strands
lovemore_mbigi,
Sep 24, 5:38am
100%.
mrfxit,
Sep 24, 5:50am
You would be correct but ONLY in the case of a known maximum Resistance value for a SPECIFIC metal type/quality & construction type of cable. In THAT perticular case, yes, going up in size would help.
Try appyling your concept to NZ's electrical mains grid. Or Automotive spark plug leads.
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