- Wed Aug 01, 2012 8:29 am
#15435
I have to agree with Noel, it IS possible to have batches of poor cables, and I also suggested to a supplier many years ago that their batch of cables should be investigated. Way back in the late 60’s and over repeated time slots since then, one could find cables that broke with very little usage, even though the poundage they were pulling was as light a load as one could achieve…i.e. a normal amount. There are four very likely possibilities. 1) The steel of the cable is below par-------2) The flux used to clean the wires is too corrosive, which weakens the steel or is left within the inner wire strands were it chemically eats away over time----------3) The steel wire is overheated during soldering, possibly up to red heat, which in effect destroys the cable strength---------4) the wire is not fanned out sufficiently and therefore is pulled through the nipple………There are no ways the first 3 problems can be spotted visually but if samples from every batch were tested to destruction by loading up to breaking point, the recorded breaking strain poundage would give some indication of good and bad production runs or faulty construction methods, however if flux corrosion was the culprit this would not show up immediately. So unless you have actually had the misfortune to have cables that break with little use it might seem something else is wrong, and prompt suggestions that the loading you have is too high but I can vouch this is hardly ever the real reason, and I know absolutely for sure you CAN get bad batches of cables, and you can get good cables that last for "ever" and wear away the barrel in the lever first before they ever break, and both types having identical usage. Many cables are sold loose without any branding names so there is no reputation to uphold, whereas some cables are sourced as factory parts, unfortunately if the factory is Indian, then one can imagine that top quality is not going to be their claim to fame. For British stuff “Doherty†produces cables and levers and have a decent reputation, and would probably honour and guarantee against a short life breakage....I don't have any up to date hands experience with these unfortunately.