Contact US

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!

*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

Ok, I seem to always work in an are

Ok, I seem to always work in an are

Ok, I seem to always work in an are

Ok, I seem to always work in an area I haven't before. I am looking for good grounding/bonding references. I already know about Soares Book on Grounding and IEEE 142 (they are on order). The reason being the new company I started at has an electrician that was told at sometime in the past that a ground rod was needed every 60', tied to the structural steel of concrete structures as tall as 180'. Since I have already made waves here and demanded changes to comply with code, I relaxed on this one, for now. There is no need for this from the NEC's perspective but am trying to figure out why the electrician may have been told this. I have the two references above on order but wanted to see if I should be looking at a different standard/reference for this. From an engineering standpoint, the additional ground rods do nothing if the steel is all tied together and the resistance to ground is the 25 ohms or less. Anyway, anyone ever heard of this or point me to a reference that may recommend this type set-up? Thank you.

RE: Ok, I seem to always work in an are

Try looking at NFPA-780. It might be a requirement for lightning protection.

RE: Ok, I seem to always work in an are

Yes, thanks for that reference too! I forgot to list that one.

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! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close