arteacher
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Gyrobob wrote on 07/17/11 at 05:49:33:arteacher wrote on 07/16/11 at 14:18:14:thumperclone wrote on 07/16/11 at 13:40:18:ul listed crimps are compatable with cu.cu.al.al,&cu.al splices as long as they are stranded conductors.. some come with a wp dielectric grease which should be used on al wire Sorry but no one will ever convince me that any crimp is better than solder. Sorry, arteacher, but you are holding on to your feelings, rather than facts. You must be a liberal. oooops,... sorry,... I digressed.
In aviation, the preferred method is crimping. With the proper stuff, dissimilar metal corrosion is not a factor, the fatigue resistance is greater, and it requires less work/craftsmanship to make the joint.
I will admit, the guy who buys his stuff from Big Lots or from some Chinese vendor on ebay, will not only have crappy stuff that will corrode eventually, it will also fatigue, and probably won't hold the crimp properly anyway.
Soldering, though, requires some skill, and more equipment. It is easy to get cold joints, too much solder, incorrect flux, ruined insolation, etc. It is cheaper, though,.. and done properly, has a tidier look to it.
With either method, heat shrink tubing is a good idea. With soldered joints, I put on a layer of electrical tape, then heat shrink over that, specifically to restrict the motion at the joint for fatigue resistance.
Now with all this going back and forth over which is better, either is fine, as long as you do it properly,.... so there is no reason to get our panties all wadded up over the issue.
My panties are not wadded up. I speak from experience. I have been an electronics hobbyist for years, and worked installing automotive electronics as well. In my experience properly done solder joints do not fail, and properly done crimps do, especially in corrosive environments. I will agree that crimps are useful if and only if you can't solder for one reason or another. And you have to be very careful with dialectic grease, as it can travel and cause shorts, and has a finite lifespan (dries out eventually). And a properly done crimp has a slightly higher resistance than a properly done solder joint, which is more important in low voltage high current apps. Why do you think that it is suggested that you unplug and replug connectors every so often?
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