Torpedo said:
Without slighting the video production what I find difficult to watch is incorrect sloppy stripping of wires where strands pulled out/off, incorrect twisting of strands, incorrect clocking of connector as being crimped. I have many years background in high speed wire termination production equipment and related methods. Wires strands are never twisted for at least two reasons, it increases the circular mil measurements and also creates points within the crimp where wires cross over each other which leaves them at risk for broken conductor strands when compressed in the crimp thereby reducing amp carrying capacity of the splice. Over time this can contribute to a failure especially in a vehicular vs static application. If one is demonstrating how to wire emergency equipment used for emergency responses then I have issue with this. Imagine running hot and your lighting switch is on but lights are inop. due to a failed splice. Sounds like a liability waiting for a place to happen. This info is being viewed by people installing emergency equipment, not their Sister's car stereo and should be presented with correct procedures. Lives depend on it. Just because you may have used similar methods and tools with success does not mean those splices will stand the test of time when measured in decades. Be careful out there everybody. Respect.
:hail:
Strands pulled off/out? Agreed, that is no good.
The "clocking" sounds like a good idea, but in all reality if you're squeezing hard enough it's gonna make a good connection. And twisting wires is a no-no?? Since when?? What difference does it make? I've never compared twisted v. straight wires, but does it really make a big difference?? The connection is only as good as it's weakest link, so I don't see how wire pattern is just as important as crimping style. And like I said, great for beginners. I used that type of crimper on my first
POV and used it for 2+ years and never had a failure.
You have to start somewhere. Nobody wakes up one morning and thinks "I've never messed with electrical stuff, so I'm gonna go buy expensive tools and know exactly how to do it!". You have start somewhere, and you have learn by trial and error sometimes. I'm almost sure some of the greatest installers here didn't start out with $1000's in tools and a line of vehicles to install. Now who knows, they may have, but I doubt it.
And decades?? Most vehicles over a certain amount of miles or over a certain year are replaced, and if not (i.e. fire service and volly
EMS depts) most lighting and sirens are updated after some time and everything gets redone. Even the best crimp can fail at some point. Sirennet already said this is to teach BEGINNERS, not newbies to learn how to open an upfitting business. If you're so disgusted by it, make your own video and post it! I think it's great they're trying to teach this. It's a hell of a lot better than using wire nuts (
uke: ) and just taking wires and taping them together after twisting them.
No it is not a "professional grade" video, but it's a lot better than some of the crap we all have seen before.