On Sat, 21 Jul 2012 21:55:36 -0500, Steve Barker
wrote:

On 7/21/2012 8:41 PM, Tony Hwang wrote:


dpb wrote:
On 7/21/2012 1:49 PM, wrote:
...

... Does anyone know what the
code says about this?

NEC says nothing; only if a local jurisdiction has additional
requirements would it be an issue.

--
Hi,
In my house 12-2 Romoex has orange color.

negative. the orange is 10ga.
The colour coding is voluntary and there is therefore "NO official
standard". It started about 2001
GENERALLY white is 14 guage, for 15 amp circuits. Yellow is GENERALLY
#12 for 20 amp circuits, Orange is GENERALLY #10, for 30 amp circuits,
Black is USUALLY either #6 or #8 - stove or drier cable, or feeding
sub panels - 40 or 60 amp.
GREY sheath can be any size and generally indicated NMW rather than
NMD (weatherproof or special app)

Because it is a "voluntary standard" it is NOT addressed by most
(possibly not any) code.