Because they still do goofy things there Because we are not the USA That said we could but why do we want to? I agree we both use the same products and for the most part Canadian and US rules are very similar in intent but there are some differences.
A province coould adopt the NEC but I think that could create a lot of legal problems for any installation that met CEC but missed NEC or vice versa. Training. All those Canadian electricians would need to learn the NEC rules.
I understand the CEC will have a table that shows 14 wire as being good for 25 amps, and a rule that the over-current can't exceed 15 amps. BEAT THAT FOR GOOFY, USA!
I understand the CEC will have a table that shows 14 wire as being good for 25 amps, and a rule that the over-current can't exceed 15 amps. BEAT THAT FOR GOOFY, USA!
That's exactly what the 2011 NEC Table 310.15(B)(16) says as well as each previous version (disclaimer; the oldest NEC in my office is 1987).
Looks like you guys are finally coming around, eh?
The 25 amp value can be used for derating, but over-current protection remains at the 15 amp maximum regardless.