"bud--" wrote in message b.com...
On 12/13/2013 11:44 AM, Let's get it right! wrote:
replying to dpb , Let's get it right! wrote:
none wrote:

... There are at least the UBI replacements available 3rd-party that
are certified to have met the applicable ANSI Standard altho these
particular ones' manufacturer has not expended the bucks to get the UL
listed. It seems I recall at least one other outfit in Canada but it
may be that the two are the same parent just the one dealing w/ US and
the other Canadian markets; won't swear one way or t'other. The
unfortunate thing w/ the UBI is that they are quite expensive in
comparison to alternatives for other manufacturers so it may be more
economical in the long run to go ahead and swap out the panel anyway.


According to NEC, a listed device is considered "PROTECTED" when applied
in accordance with it's listing and/or labeling requirements.
Any alteration to a "LISTED" device voids it's protection (ref: NEC
paragraph 110.3(b)).

Which raises an interesting fact. Most homes and office buildings I've
inspected have 20 ampere circuit breakers providing branch circuit
protection to wall outlets, switch, listed cord and direct connected
equipment. If the listed cord connected equipment utilizes a NEMA 5-15
plug, it's not protected, and because it cannot be applied to such branch
circuit protection and still be considered "PROTECTED" (Ref: NEC paragraph
240.5(B) (1)).

(B-1 is protection of the cord of a listed device)
Also B-3 (protection of listed extension cords).

15A receptacles are allowed on 20A circuits. You are saying that the
listing requirements of devices and extension cords with a 15A plug do
not allow them on 20A circuits? I see no reason to believe that is true
(and it would be absurd). Perhaps a cite?

This also explains the fires caused by "overloaded"
extension cord you hear about every X-mas season, and couldn't happen if
branch circuit protection were done in accordance with NEC (ref: NEC
paragraph 110.3(A)(8)).

Try 110.2 (approved). "Listed" apparatus is normally "approved" and
110.3-A (examination) would not normally be done.

But 110.3-B (used in accordance with listing) is applicable. Fires are
likely from not using according to the instructions.




I guess this device should be unlisted:

http://www.cesco.com/b2c/product/471640

It appears that it accepts both 15 and 20 amp plugs. I wonder why that is?

I have shopped at many stores and have yet to see an appliance with a true
twenty amp plug. I am so confused...