> Twist-ons are typically used alot by electricians in all sorts of > wiring applications within the US.
> Are electricians outside the US allowed to use twist-ons when > wiring to local code? They are very common in Canada. Typically used inside junction boxes of house wiring (eg. connecting a ceiling lamp fixture or fan). By the way, we call them Marrettes here in the Great White North. No idea why. I admit ignorance of the Canadian Electrical code, but I'm under the impression that these devices are only allowable for use when at least one of the wires is a solid copper conductor (not stranded). If both conductors are stranded, then they can untwist too easily, thus exposing bare wire. Not sure about this requirement. Looking forward to gleeful corrections ... :-) Please note however that, though these devices are allowable for house wiring, they may not be acceptable by the equipment standards. For example IEC 950 et al clones require double securement of mains wiring going into the equipment (ie. the conductor and the insulation both have to be secured independently). If you used one of these devices, you'd have to add an additional securement means. Considering the cost of parts and labour, it seems to me that it's cheaper in this case to use the standard crimp connector. Cheers, Egon __________________________________________________________ Egon H. Varju, P.Eng. May 28, 1998 @ 10:09 PM CSA Pacific Region Tel: 1-604-244-6640 HAVE MODEM - WILL TRAVEL Fax: 1-604-244-6600 E-mail: [email protected] [email protected] [email protected] __________________________________________________________
