Previous in Forum: Crane Slip Ring Motor   Next in Forum: Earthing Facility
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
4 comments
Rate Comments: Nested
Anonymous Poster

Earthing System Without Earth Grid

12/19/2010 5:56 AM

I want to design earthing system for a laboratory building. But there is no any possibility to make a grid below the building. Now i want to put earth electrode (pipe electrode) around the building. So how i can calculate step potential and number of earth electrode sufficient to withstand fault current?
Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Anonymous Poster
#1

Re: Earthing system without earth grid

12/19/2010 6:16 AM

thats true. I am also wondering .how can you calculate earthing system if you do not know.?
Reply Score 1 for Good Answer
No more "Almost" Good Answers.
Anonymous Poster
#2
In reply to #1

Re: Earthing system without earth grid

12/20/2010 3:32 AM

Dear gust, if u want to learn than email me.
Reply
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#3

Re: Earthing System Without Earth Grid

01/02/2011 7:42 PM

British Standard 7671.

Depending on the incoming supply earthing, it might not be necessary to do any digging at all.

http://en.wikipedia.org/wiki/Earthing_system

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Reply
34point5
Guru

Join Date: May 2010
Location: in optimism
Posts: 4050
Good Answers: 130
#4

Re: Earthing System Without Earth Grid

01/02/2011 8:21 PM

You say "grid below the building" and "fault current"

Do you mean earth for power supply reasons or EMR shielding reasons?

__________________
 There is no sin except stupidity. (Oscar Wilde, Irish dramatist, novelist, & poet (1854 - 1900))
Reply
Reply to Forum Thread
Have a Different Question?
4 comments

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Copy to Clipboard

Users who posted comments:

34point5 (1); Anonymous Poster (2); PWSlack (1)

Previous in Forum: Crane Slip Ring Motor   Next in Forum: Earthing Facility

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Electrical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (94 right now)
Show Members
Advertisement