×
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

Outdoor switchyard dimensioning

Outdoor switchyard dimensioning

Outdoor switchyard dimensioning

(OP)
I need to define clearances and roadway/walkway dimensions in a few 230 kV (1050 BIL) and 115 kV (550 BIL) outdoor substations. Can anybody help me with basic dimensions or direct me to a source on the web (other than the RUS)?

Thanks in advance

RE: Outdoor switchyard dimensioning


In ANSI regions, clearances to exposed energized components are described in the National Electrical Safety Code distributed though ieee.org.  Some regions have localized standards, like California’s General Order 95, published by the Public Utilities Commission of the State Of California.
  

RE: Outdoor switchyard dimensioning

NESC is correct.  Not sure if you will find it on the web unless you pay a subscription fee somewhere.

RE: Outdoor switchyard dimensioning

NEMA is a little more conservative than NESC, and the price is much better. http://www.nema.org/index_nema.cfm/1260 See page 13.

Note that unlike outside the fence, only trained people should be inside. There is no difference in clearance for road versus walkway. You are expected to know if your rig will violate minimum approach.

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