installing conductors in a raceway

[shespuzzling]

Can someone point me to the location in the NEC that says that insulated conductors must be installed in a raceway? Thanks.

 

[texie]

Can someone point me to the location in the NEC that says that insulated conductors must be installed in a raceway? Thanks.

See 300.3.

 

[petersonra]

Can someone point me to the location in the NEC that says that insulated conductors must be installed in a raceway? Thanks.

there is no such requirement. NM contains insulated conductors and are not required to be in a raceway.

However, I think what you are really asking is if single conductors can be installed outside of a raceway. generally the answer is that they cannot. You have to use a wiring method found in chapter 3, and running individual conductors by themselves is not found there.

 

[Bang]

Article 110.7 and 110.8 are the closest things I've found relating to that.

 

[fmtjfw]

Not always required

Not always required

See the articles 225, 310 (ampacities in free air tables), 392, 394, 396, 398, ...

You need to make your question more specific.

 

[don_resqcapt19]

310.10 Uses Permitted. The conductors described in 310.104 shall be permitted for use in any of the wiring methods covered in Chapter 3 and as specified in their respective tables or as permitted elsewhere in this Code.

 

[Julius Right]

Non-shielded and not armored 2000 V cable

Non-shielded and not armored 2000 V cable

I think the o.p. is refering to cable above 600 V up to 2000 V rated non-shielded and not armored.
Art. 300.50 A(2) requires:
(2) Other Nonshielded Cables. Other nonshielded cables
not covered in 300.50(A)(1) shall be installed in rigid metal
conduit, intermediate metal conduit, or rigid nonmetallic
conduit encased in not less than 75 mm (3 in.) of concrete.:?

 

[kingpb]

Can someone point me to the location in the NEC that says that insulated conductors must be installed in a raceway? Thanks.

armored cable does not require a raceway.

Check your local Code requirements as well.

 

[Dennis Alwon]

armored cable does not require a raceway.

Check your local Code requirements as well.

Armored cable is not an insulated conductor. The op stated insulated conductor.

 

[GoldDigger]

Armored cable is not an insulated conductor. The op stated insulated conductor.

Let's call it an individual insulated wire just for complete clarity (I hope.)

 

[Dennis Alwon]

Let's call it an individual insulated wire just for complete clarity (I hope.)

I am thinking that is what the op meant.

 

[readydave8]

I am thinking that is what the op meant.

Or did he mean that un-insulated conductors cannot be installed in a raceway?