×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

24 VAC

24 VAC

(OP)
I have a question about running some control wiring.  I will have an 120 VAC cable tray and a 24 VDC cable tray running between my controller and field devices.  I have one field device that will require 24 VAC.  Should I run this cabling in the low voltage DC tray or the 120 VAC tray?  I am not sure where this voltage should sit and if the AC nature of it would adversely affect the DC wiring.

What do ya'll think?

Thanks,
Doug

RE: 24 VAC

I don't know what the code says, but if the 24VAC is low power (assume so since controls) then running it in with DC will not hurt a thing. The issue with running AC with DC (at least in my opinion) is the potential for EMI problems. EMI is not a problem if it all wires in the raceway are low current carrying and are not hooked to fast switching devices.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources