Installation of low voltage (i.e.24vdc) conductors with

[johnlangdon]

Q1-Existing control systems I have seen have the control air (80 psi) ran with control wiring (limit switches) through conduits to valves. Is this an approved installation? The only article I found was 300.8. Is there an exception somewhere?.
Q2-Can control air 80 psi or lower be ran with control wiring without barriers in control panels?

 

[don_resqcapt19]

Re: Installation of low voltage (i.e.24vdc) conductors with

John,
If the control circuits are Article 725 circuts, then 300.8 does not apply. See 725.3.
Don