ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Inspection camera help
by Bill Addiss. 09/19/18 10:50 PM
220/230/240V 60Hz Systems
by gfretwell. 09/16/18 12:37 PM
Acronis Backup 2017
by gfretwell. 09/16/18 12:46 AM
Tingle off the water spigot
by Trumpy. 09/15/18 03:24 AM
Lighting Load questions
by HotLine1. 09/14/18 07:04 PM
New in the Gallery:
Plug terminals
Housebilding DIY wiring
Who's Online Now
0 registered members (), 44 guests, and 25 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 2 1 2
Dining Hall Feeder #112621
07/30/01 10:45 PM
07/30/01 10:45 PM
Admin  Offline
OP
Administrator
Member
Joined: Oct 2000
Posts: 3,516
NY, USA
[Linked Image]

[Linked Image]
Quote
2000V #6-3 SOW Cable feeding a 200A panel for a dining hall. This hall will be used for the upcoming music festival. I removed the panel cover so I could check voltage drop and amperage concerns after seeing this feed.

With the fryer, lights and oven and cooler running, the current reads about 88 amps per leg... The voltage? 108V and 109V ... That doesn't include coffee pots, beer coolers, heat lamps, etc. etc.

I'm told the feed is fed from a 70A Breaker. (?) It comes from across the road (through rigid pipe not buried) from a dwelling about 250' away, but there is 500' of cable looped back and forth... (the owner didn't want to cut the cable...)

I asked a maintenance man about the dining hall and "no one has had any trouble..." He also said "It's mining wire, it'll handle that building..."

If you look closely, the White Conductor (Hot) and Red Conductor (Neutral) have a small green companion... it appears to be steel cable with a non-dielectric green covering. (Like clothes line wire!)

I will be typing up a disclaimer to cover myself here...

-Virgil



[This message has been edited by Webmaster (edited 07-30-2001).]

Tools for Electricians:
Re: Dining Hall Feeder #112622
07/31/01 06:40 PM
07/31/01 06:40 PM
Tom  Offline
Member
Joined: Jan 2001
Posts: 1,044
Shinnston, WV USA
Virgil,

That is definitely mine cable. The "greens", I believe, are for the ground check circuit.

looks state of the art to me! [Linked Image]

Tom


Few things are harder to put up with than the annoyance of a good example.
Re: Dining Hall Feeder #112623
07/31/01 06:45 PM
07/31/01 06:45 PM
A
Anonymous
Unregistered

>the White Conductor (Hot) and Red Conductor (Neutral)
I'm not coming to help you after all.

Re: Dining Hall Feeder #112624
07/31/01 11:38 PM
07/31/01 11:38 PM
sparky66wv  Offline
Member
Joined: Nov 2000
Posts: 2,236
West Virginia
I had assumed the greens were "messenger" wire, for strength, marked green to hopefully insure bonding.(?)

They appeared to be steel inside a translucent green sheath, not unlike clothes-line...

Dspark... You ain't seen nuthin' yet!

I see this stuff almost every day... no exaggeration! I'll keep posting the good ones like this... Once again, a macro lens type camera would be more useful for most that I run into... (Due to lack of working clearances and the minimum 3' focus on my current camera, well, you get the idea!)


[This message has been edited by sparky66wv (edited 07-31-2001).]


-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI
Re: Dining Hall Feeder #112625
08/01/01 07:46 AM
08/01/01 07:46 AM
electure  Offline

Member
Joined: Dec 2000
Posts: 4,274
Fullerton, CA USA
What is is that gives this cable a 2000V rating? The part in the pic doesn't appear to be any different than 600v (or 300V, for that matter) I've never seen mining cable.
Is the 70A C/B an FPE?
This is scary.

Re: Dining Hall Feeder #112626
08/01/01 08:45 AM
08/01/01 08:45 AM
sparky66wv  Offline
Member
Joined: Nov 2000
Posts: 2,236
West Virginia
SOW 2000V written right on the jacket...

Mining Cable = SOW


-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI
Re: Dining Hall Feeder #112627
08/01/01 03:29 PM
08/01/01 03:29 PM
N
nesparky  Offline
Member
Joined: Jun 2001
Posts: 642
omaha,ne
thank god we don't see mining cable here
does AHJ or OSHA do any thing there?


ed
Re: Dining Hall Feeder #112628
08/01/01 05:45 PM
08/01/01 05:45 PM
Tom  Offline
Member
Joined: Jan 2001
Posts: 1,044
Shinnston, WV USA
NESPARKY,

To paraphrase a famous movie "AHJ? We don't need no stinking AHJ."

Once you get away from a few of the larger cities in the Mountain State, there is no AHJ and pretty much no inspection, except for the service and only if served by one particular power company.

OSHA? They're too busy rousting people with money to pay their fines.

Tom


Few things are harder to put up with than the annoyance of a good example.
Re: Dining Hall Feeder #112629
08/01/01 07:47 PM
08/01/01 07:47 PM
electure  Offline

Member
Joined: Dec 2000
Posts: 4,274
Fullerton, CA USA
They really don't need a stinkin' AHJ.
. check out NEC 90-2(b)(2) !!
I don't think they're subject to OSHA either(could be wrong on that).
They're their own AHJ

Re: Dining Hall Feeder #112630
08/02/01 12:42 AM
08/02/01 12:42 AM
sparky66wv  Offline
Member
Joined: Nov 2000
Posts: 2,236
West Virginia
I failed to mention that the odd flair on the end of the entrance conduit is actually the remnants of an LB... The other half was lying on the ground below...

I like the fact that the Fryer/Grille and Range feeders are the same size as the mains!!!

No one (but me) has warned the festival promoters of the lack of ampacity, especially considering voltage drop....

It has apparently already burned up the cooler compressor motor... (browning out)...

And there is no damage waiver to any equipment used during the festival... It's a trap!


-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI
Page 1 of 2 1 2

Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
dougwells
dougwells
kamloops BC Canada
Posts: 1,149
Joined: May 2003
Show All Member Profiles 
Top Posters(30 Days)
Admin 13
Trumpy 11
sparky 9
Popular Topics(Views)
249,304 Are you busy
187,237 Re: Forum
176,605 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.025s Queries: 15 (0.005s) Memory: 1.0246 MB (Peak: 1.2008 MB) Zlib enabled. Server Time: 2018-09-20 10:54:11 UTC