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| Tricks of the Trade - knowledge for every day life |
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| tooki:
--- Quote from: eti on December 11, 2022, 07:43:28 am ---Always *twist* a stranded wire and then solder saturate it into a solid end (and then clean off any flux) and then cut it flush and clean at the tip, before screwing into a terminal block. If possible use captive terminal types, the ones with the ridged moving flat clamp which rides up and down with the screw and applies even pressure across the wire end, otherwise excess tightening causes screw-shaped pits in the wire end, and if it’s not been soldered as above, you get little copper strand ends falling out everywhere, which not only means short circuit risk but means the cross-sectional amperage rating of the end has decreased. --- End quote --- Putting tinned stranded wire into a screw terminal is an absolute no-no, since solder cold-flows, loosening the connection over time. See also the attached PDF from Phoenix Contact. The correct thing to use is ferrules. It is OK to put tinned stranded wire into spring-clamp terminals because any cold flow is automatically compensated by the spring force. |
| tooki:
--- Quote from: Psi on December 11, 2022, 11:27:43 am ---When cutting the insulation off multi-core cable using many cuts with side-cutters you will sometimes accidently cut or nick one of the inner wires. To avoid this, use the side cutters to pinch some of the insulation, then rotate the cutters outwards before actually cutting it. By doing this rotation you will ensure the inner wires are not between your sider cutter blades. --- End quote --- You mean stripping the cable jacket? That’s what jacket strippers are for! :) Pro life hack: strip cable jacket using cable jacket strippers. :P |
| themadhippy:
--- Quote ---You mean stripping the cable jacket? That’s what --- End quote --- knifes are for. |
| tooki:
Yeah you can use a knife, but why make life harder than it needs to be? |
| IDEngineer:
You mean stripping the cable jacket? That’s what teeth are for. {grin} |
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