conduit required for class 2 secondary wiring?

[tdexxx]

Hello All,
Is conduit required for class 2 power supply secondary cables, (12 volt, 60 w), for an LED lighting system installed in the overhead space in a store? This is a sign system, and the bonding of metal parts would be accomplished with a green bonding wire running from each metal letter back to the power supply enclosure. I know article 600 defines requirements for sign systems but haven't found my answer there. TIA, Tom

 

[tdaniels]

If you use a class 2 cable conduit not required.

 

[tdexxx]

If you use a class 2 cable conduit not required.

In a run of class 2 wiring located in a ceiling space in a commercial location, is a wire-nut splice allowed to occur outside of an enclosure? In other words, can the wire nuts be exposed and visible?

 

[jumper]

In general 725.3

725.3 Other Articles. Circuits and equipment shall comply
with the articles or sections listed in 725.3(A) through
(G). Only those sections of Article 300 referenced in this
article shall apply to Class 1, Class 2, and Class 3 circuits.

will get you out of 300.15 for Class 2 circuits.

 

[raider1]

I agree with Derek,

Class 2 and 3 circuits are not required to be spliced in a box or enclosure.

Chris

 

[spsnyder]

Is it a return air plenum?