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Re: Wire replacement and wire nuts
Apparently that crimper is one of the many fine products that are made in China to metric standards. Note that all the dies are metric (mm*2) sized with an "equivalent" to AWG sizes. Well, neither SAE nor AWG matches metric sizes, so those dies will be wrong pretty much all the time, here in the Colonies. Maybe "good enough" but still, an uncertainty.
"Tape is not going to keep anything dry in a bilge." self-amalgamating tape, not electrical tape, not rubber tape, but butyl or silicone self-amalgamating tape, does a damn fine job, even underwater, as long as you apply it properly to CLEAN insulation and give it 48 hours to set up and fuse together. It turns into one lump, pretty much like a stubborn oyster. I'd still rather see no splices in the bilge, but sometimes, a pump only comes with 6" leads when you need a good two feet.
I think I've seen every type of splice (wire nut, crimp, solder) fail when poorly made, and last for decades when done right. The number of contradictory industry and field practices out there might tend to suggest some truth behind that.
The URL to "NASA" splices and the Western Union Splice? Someone has been rewriting history. Before there was an internet, a "WU splice" was always described as a splice in twin wires, made without insulation or electrical tape, which wasn't to be had in the frontier 1800's. The lineman would cut and splice one wire "here" and offset the other wire "there" so that the BARE SPLICES could not touch and short each other out. The remaining insulation on each wire was all that separated them. THAT was a Western Union splice, and Telco lineman still used them if there was no way to insulate your work. The offset splices, not the style of wire twisting, was what made it a WU splice. FWIW.
Last edited by hellosailor; 06-09-2015 at 02:21 PM.