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-   -   I have old tube and knob that is 14-2. Can I use 12-2 to add more length to move a light? (http://www.diychatroom.com/f18/i-have-old-tube-knob-14-2-can-i-use-12-2-add-more-length-move-light-156709/)

Bigwavedave 09-13-2012 01:56 PM

I have old tube and knob that is 14-2. Can I use 12-2 to add more length to move a light?
 
I have old tube and knob that is 14-2. Can I use 12-2 to add more length to move a light?

Jim Port 09-13-2012 03:06 PM

Firstly, 14-2 is a cable, and is not knob and tube. Secondly, unless the circuit is grounded it should not be extended.

Knob and tube, AKA K&T, get its name the the insulators used to support the individual conductors along a framing member, the knobs, and the tubes that went through drill holes. All the insulation will be a fabric material. Some had a loom placed over it where it entered a box.

Bigwavedave 09-13-2012 03:18 PM

What can I do.... The 14-2 isn't grounded

md2lgyk 09-13-2012 03:26 PM

Then you need to run a complete new circuit. K&T is old, outdated, and dangerous. It should be removed wherever possible.

dmxtothemax 09-13-2012 06:22 PM

Quote:

Originally Posted by Bigwavedave (Post 1009221)
What can I do.... The 14-2 isn't grounded

You cannot change, add to, or modify K & T wiring period !
You must run a new circuit.

Thats code !

All you can do is continue to use the K & T if it is safe to do so !


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