ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 11
Recent Posts
Permit Snafus...AHJs and Contractors Jump in
by sparky. 04/29/17 05:59 PM
201 volt equipment?
by bigpapa. 04/29/17 12:15 AM
Schneider LC1D09
by jraef. 04/28/17 11:05 PM
Electrode boilers question
by annemarie1. 04/27/17 01:40 PM
Why cables look like they do
by LongRunner. 04/26/17 09:36 AM
New in the Gallery:
SE cable question
Popular Topics(Views)
234,993 Are you busy
169,832 Re: Forum
163,031 Need opinion
Who's Online Now
0 registered members (), 43 guests, and 9 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#87414 - 03/05/04 02:37 PM Hight voltage clearences  
Yoopersup  Offline
Member
Joined: Mar 2003
Posts: 822
Michigan
Where would one find info on the clearence required for a 4160 high voltage utilty line over the roof of a building(industrial) paper mill.There thinking of adding an Addition and the current line would run over the addition. Yes I know some well say contact the utilty company, But its gotta be somewhere.(located in michigan)


2017 / 2014 NEC & Related Books and Study Guides

#87415 - 03/05/04 03:29 PM Re: Hight voltage clearences  
George Corron  Offline
Member
Joined: May 2001
Posts: 717
Lorton, Va USA
This is a lousy answer, but you can find it in Artlicle 234 of the National Electrical Safety code, but you have to know your cable type, wind load, etc to calculate.

Article 110 and 490 of the NEC do not really address any specifics of 4,160. OSHA is very concerned where there is access to the roof. Will there be equipment requiring service up there? If so, I suggest the minimum is 10 feet which is the minimum clearance for working unless trained, and properly PPE'd.

Hope this gives you an idea where to start.


#87416 - 03/05/04 10:06 PM Re: Hight voltage clearences  
OreElect  Offline
Member
Joined: Mar 2004
Posts: 98
Salem,Oregon.USA
clearances;225.60 Over 600v
230.24 not over 600v


#87417 - 03/06/04 11:42 AM Re: Hight voltage clearences  
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...
FWIW, there is a regional 'NESC-like' document at ftp://ftp.cpuc.ca.gov/gopher-data/GO/GO95.pdf {2.5MB pp.441}



Member Spotlight
SafetyWired
SafetyWired
Pa, USA
Posts: 44
Joined: July 2013
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.010s Queries: 14 (0.002s) Memory: 0.7593 MB (Peak: 0.8921 MB) Zlib enabled. Server Time: 2017-04-30 10:51:55 UTC