Even as a retired IBEW electrician, I learned several "workmanship tips" from this wonderful assembly guide:
Something that I definitely "did wrong" for decades was over-twisting stranded wires before inserting them into a crimp connector. According to NASA's guide, the correct way is to strip the wire and insert it without additional compaction. Their reasoning makes sense: leads to individual strand breakage and/or loose crimps.
Related, double-crimp terminals are designed to have one crimp over uninsulated wire, the second (closer to contact/space/barrel) mates with the stripped copper. Similarly, for twist-post connections, the first 1.5 twists should be of insulated wire, and then several more of stripped conductor.
Have used this site a lot over the years, really useful resource. I wish ESA was more willing to do this sort of guidance document rather than just the requirements.
ProllyInfamous|2 years ago
Something that I definitely "did wrong" for decades was over-twisting stranded wires before inserting them into a crimp connector. According to NASA's guide, the correct way is to strip the wire and insert it without additional compaction. Their reasoning makes sense: leads to individual strand breakage and/or loose crimps.
Related, double-crimp terminals are designed to have one crimp over uninsulated wire, the second (closer to contact/space/barrel) mates with the stripped copper. Similarly, for twist-post connections, the first 1.5 twists should be of insulated wire, and then several more of stripped conductor.
dotancohen|2 years ago
cuSetanta|2 years ago