Toolaholic
General Contractor Carpenter
Are crimp sleeves ok? Tanks Tool
OK, but either way these are very, VERY, specific "crimps" designed for the job.The companies which make the Cu-Al "splices" call them "crimps" and use a "crimping tool" to secure them.
quote; OK, but either way these are very, VERY, specific "crimps" designed for the job.
Which is WHY, I specified that they have to be the "correct crimp" devices, and use the specfic crimping tool for them, neither of which is "inexpensive". Those with a screw retainer in the side, CAN loosen because of expansion and contraction, the same as panel connections which use a "screw" to anchor the aluminum. Have you NEVER seen an aluminum power wire with the insultion melted back several inches from its anchor point because it has loosened and created resistance and thus heat? I have several times.
Having worked with aluminum branch circuits for more than forty years I would consider myself somewhat versed on the subject. Over the years I have used every type of aluminum to copper conversion kit on the market and have had failures in all of them except one. The one in which I have never had a failure was with the ones with a set screw for each conductor.quote; OK, but either way these are very, VERY, specific "crimps" designed for the job.
Which is WHY, I specified that they have to be the "correct crimp" devices, and use the specfic crimping tool for them, neither of which is "inexpensive". Those with a screw retainer in the side, CAN loosen because of expansion and contraction, the same as panel connections which use a "screw" to anchor the aluminum. Have you NEVER seen an aluminum power wire with the insultion melted back several inches from its anchor point because it has loosened and created resistance and thus heat? I have several times.
If one can get ¾ turn on a terminal one week after installation this says one thing, it was not properly installed the first time. In over 44 years of doing electrical installations I have yet to see an aluminum bus bar or terminal bar installed in any of the panels I have worked with. I have seen aluminum alloy but never aluminum.You can bust a nut tightening on a main AL wire and come back in a week and get an easy 3/4 turn. Then you have your neutral and ground bars that are aluminum with copper wires stuck in them. Interesting engineering. The latest GE panel I bought seems to have gone to a copper plated steel bar with a bit of "dip" in the under screw area to insure a good connection.
and in today’s market it does nothing for the conductor either.NO-ALox will do nothing to prevent expansion contraction movement or lossening.
This is awkward, but...
It looks like you're using an ad blocker. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. If you'd like to support the site, please allow ads.
If any particular ad is your REASON for blocking ads, please let us know. We might be able to do something about it. Thanks.