muddy Posted March 4, 2012 Share Posted March 4, 2012 Slightly OT but i am looking for some 3 or 4 way heatshrink joiners to use when 'tapping' in to other wires etc, anyone know of any suppliers? Will (solder +HS man) Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted March 4, 2012 Share Posted March 4, 2012 Solder Vs Crimps is one of the unwinnable forum arguments. Even NASA allow both WHEN DONE PROPERLY, and frankly either DONE PROPERLY will be fine. Glue-lined heatshrink over either is also nice as it stops water wicking up the wire (crimp) and supports the joint against mechanical stress (solder). Given that most LR owners will f**k either of these up, or even worse use scotchloks - through being lazy / in a hurry / too cheap to buy proper gear it's not worth getting that worked up about. Oh, anyone wanting to know what "good" looks like, NASA's word on the matter is here: http://workmanship.nasa.gov/lib/insp/2%20books/frameset.html Quote Link to comment Share on other sites More sharing options...
Maverik Posted March 4, 2012 Share Posted March 4, 2012 Solder Vs Crimps is one of the unwinnable forum arguments. Even NASA allow both WHEN DONE PROPERLY, and frankly either DONE PROPERLY will be fine. Glue-lined heatshrink over either is also nice as it stops water wicking up the wire (crimp) and supports the joint against mechanical stress (solder). Given that most LR owners will f**k either of these up, or even worse use scotchloks - through being lazy / in a hurry / too cheap to buy proper gear it's not worth getting that worked up about. Oh, anyone wanting to know what "good" looks like, NASA's word on the matter is here: http://workmanship.n...s/frameset.html Wow, thats an awesome resource. - quite interesting reading. Quote Link to comment Share on other sites More sharing options...
Pastycrimper Posted March 5, 2012 Share Posted March 5, 2012 Indeed an unwinable argument but fun to read nonetheless. Thought I'd add the subsea world to the discussion. I work on deep water ROVs and depending on the job we frequently have to splice whips to whips (Pigtails if you like) as invariably various high tec subsea equipment uses one type of connector going to another type. These ROVs are under permanent vibration and stresses as well as lateral currents and the wires are essentially just cable tied to parts of the chassis but of course the MAIN problem is the pressure at 4000m deep - 400 bar!! (imagine that in your turbo!!!!) We solder and heat shrink each individual wire, then heatshrink the individuals in a bundle. This is then potted with a small amount of hard resin and then the whole joint is potted in a much larger mould using some "rubbery" type compound that can take the pressure - this also allows any flexing and vibrations to occur away from the solder joint due to the size of the outer moulded protection. Sometimes wires are even run in oil filled flexible conduit. To wet your apetites I attach a couple of pictures....if you look hard you'll spot where potted cable splices exist. A well soldered joint has never failed me. Our problem is water ingress (the scourge of the subsea world) and mainly subsea connectors which under such pressure invaiably get water ingress. Quote Link to comment Share on other sites More sharing options...
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