---------- Forwarded Message ---------- From: Chris Dupres, 100014,3703 TO: POWELL, DOUG, INTERNET:[email protected] DATE: 23/06/98 19:48
RE: Copy of: Ground Wire Markings Hi Doug. You wrote: <I was recently speaking with one of my fellow employees who previously worked at Dell Computer. He claims that at Dell they had to remove a large amount of their grn/yel ground wire from products and replace it with wire that is marked in some way with its loading capacity. Things like resistance, maximum voltage. maximum current marked directly on the wire. He also says this is a North American requirement.> OK, I'm in the UK, but I've designed, built, supplied, installed and commissioned equipment in the USA. I have never come across any requirement that ground wires are not Green/Yellow (if that's what you meant), but I am invariably required to use UL or CSA wiring material that is marked with cross sectional area, voltage rating, UL or CSA description, maximum temperature etc. But this is nothing special, it's widely used material called either Thermoplastic Equipment Wire (CSA) or Appliance Wiring Material (UL), and the same stuff in the UK is called BS6231 Equipment Wire. Maximum current won't be marked as this is very dependent on how/where it is run, and what it is meant to do. Resistance won't be marked either as this is very temperature dependent. Cable with all three UL, CSA and BS approvals is named Tri-Rated, it's the same stuff. Another tuppence worth, maybe. Chris Dupres Surrey, UK.
