Re: Grounding the receptacle boxes in an old house

"krw" wrote, regarding my mom's 50's-era house:

> As Jim said, I highly doubt it's K&T. My parents
> built a house in the '50s with NM. Some regions of
> the country still required BX though.

When I looked behind the receptacles in my mom's house, the two
wires in each box had white and black plastic insulation, and
each pair of wires looked like it was covered with some sort of
non-metallic, black outer layer that seemed to be impregnated
with a tar-like substance. The outer layer appeared a bit on
the brittle side.

I took a look under the house today (peering into the crawl
space), but I didn't see any electrical wiring there at all
(except for phone and cable TV). I imagine this may mean that
the electrical wiring is in the attic; I haven't tried looking
there yet.

Rich Wales richw@xxxxxxxxx http://www.richw.org

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