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old romex #47741 01/25/05 09:16 PM
Joined: Jan 2005
Posts: 1
H
heritage55 Offline OP
Junior Member
Now and then, I come across electrical branch cables from about the 50's or early 60's that I have heard some electricians refer to as "ungrounded romex". It is cabling with only two wires (hot and neutral, no ground wire) encased with a cross-woven fabric material that is either green or tan in color. Basically, it was the transitional branch wiring that came after knob-and-tube wiring but before BX. The original wall switches are often of the old push-button type commonly associated with knob-and-tube wiring.

I wonder if this group can provide some learned input on this subject:

* What is the proper name for this stuff? There's gotta be something better to call it other than "ungrounded romex".

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Re: old romex #47742 01/25/05 10:12 PM
Joined: Mar 2004
Posts: 744
B
BigB Offline
Member
Actually BX was around in the late 1800s. It was used to add receptacles to knob and tube systems before NM sheathed cable, or Romex, was around. I've seen many variations of the old romex, mostly cloth covered, some with a spiraled cardboard insulator inside the cloth followed by rubber on the wires. Some of the cloth type is impregnated with asphalt or tar. I've also seen lead sheathed romex. The latest cloth covered type has plastic insulation on the wires. All the folks I know just call it two wire romex.
Theres an excellent book called "Old Electrical Wiring" by David Shapiro which explains it all.

Re: old romex #47743 01/25/05 10:15 PM
Joined: Dec 2003
Posts: 886
H
hbiss Offline
Member
Was way before the 60's and 50's, probably 30's and 40's. What else would you call it? It's old cloth covered Romex without a ground.

-Hal

Re: old romex #47744 01/25/05 10:31 PM
Joined: Mar 2001
Posts: 2,056
R
Redsy Offline
Member
How about "ragwire".

Re: old romex #47745 01/25/05 10:34 PM
Joined: Nov 2002
Posts: 558
G
ga.sparky56 Offline
Member
I've heard it called "Snakeskin". If you strip a piece of jacket off a few ft. long,it kinda looks like where a snake shed it's skin.

Russell

Re: old romex #47746 01/25/05 11:03 PM
Joined: Oct 2000
Posts: 3,923
Bill Addiss Offline
Member
Old 2-wire NM cable?

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Bill


Bill
Re: old romex #47747 01/26/05 12:03 AM
Joined: Nov 2004
Posts: 56
D
detubbs Offline
Member
sparky 56 funny you mention that last summer my dad and i were rewiring this old farm house he was running new wire i was cutting out the old K-n-T and i bent over to pick up this piece that i cut out to throw it awaya nd guess what. a freakin 6 foot black snake!!!! you never saw a fat-boy run so fast i your life! i never realized till my hand was like 6 inches from picking it up! apparently it made it's way throughout the house we found skins in most of the walls all teh way up in the attic also! i triple checked every wire i grabbed from there on out!!


Scott
Re: old romex #47748 01/26/05 06:38 AM
Joined: Aug 2001
Posts: 329
S
Steve Miller Offline
Member
Around here we're like Redsy, we always called it ragwire. We have houses built up thru the 60s that still used it (but by then most of it had a small ground, about a #18).


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