Hello Group, Having had to once purge and scrap nearly a quarter million feet of wire from our production line, I am very sensitive to wire marking issues.
There once was a requirement to surface mark wire with UL and/or CSA information. This included the insulation type (TEW, PTFE, SJ, SJT, etc.) voltage rating (150V, 300V, 600V, etc.) temperature (80 deg. C, 105 deg C, etc.), flammability rating (VW-1 etc.). Similar requirements were in place for heat shrinkable tubing. Since the "great purge", my poor memory recalls that surface marking of wire and shrink tube requirements have been lifted (canceled). This is because it is very difficult to mark wires, especially the smaller gages. Test requirements remain in force and labeling requirements apply to the wire packaging (roll, spool, bag, box, whatever). There are even labeling requirements for wire that has been re-spooled (taken off manufacturers spool and re-spooled in smaller amounts by distributors). I recall that the information about lifting the surface printing requirements came from something like the CSA Informs or CSA Certification Notice distribution. I have been looking through my piles (is that files?) but can't seem to find that document. Can anyone verify that for me? Regards, Scott [email protected]
