Tuesday, Apr 16, 2013 at 16:58
If ya want to argue crimping V soldering....I can burry you in references...been there had the argument several times
Those who DO rely on getting it right first time every time CRIMP.
I have been extensively trained in both....believe me when I say my soldering is beautifull, large and small......BUT I crimp where ever I can.
There are significant reliabilty problems with soldered joints in high current DC applications.
1. under situations of high resistance joints adjacent to soldered joints the soldered Joints can pull out.
Quite a few people have found this with anderson plugs when they solder them and run them near or above capacity
60/40 lead/tin solder melts at about 185C, it is significantly compromised
well below that
Copper melts at over 1000C.
a properly crimped.."near welded"...copper lug on a copper wire will not fail before all the insulation has melted and dribbled off and will very likely be found in tact in the charred and smouldering mess that once was ya caravan, probably in the melted puddle that was the batteries.
2. Soldering unavoidably required fluxes, fluxes that can not be completely removed and thus promotes corrosion in the cable adjacent to the connector.
3. the heat required to solder heavy connectors compromises the insulation on PVC insulated cables...combined with #2 a good recipie for corrosion.
I have cut appart cripmed lugs that are over 30 years old and have been regularly exposed to salt water....the copper strands where corroded 2 meters up insde the insulation BUT the strands inside the crimped lug where still firmly consolidated and
bright....AND this was crimped with an old style crimper far less efficient that those currently available
4. Soldering lugs onto stranded flexible cables causes the cable to become stiff and far more prone to fracture a little beyond the lug.
This is very easy to demonatrate.
Sorry but almost every
forum that deals with electrics..this discussion will come up from time to time and the result will be the same.
There are those stuck in their ways that continue to insist that soldering is best.
Those of us that have learned the benifits of properly made crimp joints know what they are used in almost every high reliability application and have been for over 30 years.
In fact in many situations now soldering is specificaly excluded in many wiring specifications.
I know there are plenty out there suspicious about crimping......and there are plenty of horrible crimp joints out there.
BUT..right wire in the right lug cripmed with the right crimper using the right method and in every way and in every situation crimping is superiour.
If you are having problems.....toss that cheap pressed metal crimper and get a decent unit.....they can be had at reasonable prices these days.
cheers
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