×
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

IEEE STD 998

IEEE STD 998

IEEE STD 998

(OP)
Hello,
Question regarding substation shielding: can I confirm that a metallic equipment support structure, or wooden for that matter, also double as a lightning Mast? I cannot find it specically noted in the IEEE standard.

Thanks in advance.

RE: IEEE STD 998

As long as a support structure has a conductor from its tip to earth, it can act to intercept lightning strokes before they strike conductors or equipment.  In the case of a metal structure, the structure itself can be the conductor.  A wood pole would have to have a separate metallic conductor bonded to the grounding electrode.

While the whole structure may not specifically fit the IEEE Std 998 definition of lightning mast because it is not a column or narrow-base structure, you could consider each column of the structure to be a lightning mast.
 

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