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Stan Brown Stan Brown is offline
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Default knob and tube, 3rd ground wire, galvanized ductwork

Thu, 26 Apr 2007 09:22:39 -0500 from Chris Hill chill_mapsfree_000
@centurytel.net:
Why? It was safe enough in the past without a ground wire. If you
want more safety, install a gfci and be done with it; if you mark it
"no equipment ground" it might even meet code.


Funnily enough, at my home maintenance class tonight the teacher
happened to mention that grounding is good but GFCI provides similar
protection if grounding is impractical.(*) He said if it's not
actually grounded it must be stickered but will then meet code.


(*) The class is aimed at people who bought existing homes,
especially older homes, so there may be only two-connector wire in
the wals and rewiring would be a considerable expnse.

--
Stan Brown, Oak Road Systems, Tompkins County, New York, USA
http://OakRoadSystems.com/