ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Violation?
by renosteinke - 01/27/23 09:52 PM
Does NEC 551.71 (F) apply to dwellings?
by BigB - 01/20/23 10:46 AM
Power submeter connections
by HotLine1 - 01/19/23 09:09 AM
AFDD's coming to the UK
by Texas_Ranger - 01/17/23 07:22 PM
New in the Gallery:
Burger King crown sillyness
Burger King crown sillyness
by wa2ise, December 11
240/208 to a house
240/208 to a house
by wa2ise, October 9
Who's Online Now
0 members (), 22 guests, and 10 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 2 1 2
#112621 07/30/01 09:45 PM
Joined: Oct 2000
Posts: 3,672
Likes: 2
Admin Offline OP
Administrator
Member
[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).]

#112622 07/31/01 05:40 PM
Joined: Jan 2001
Posts: 1,044
Tom Offline
Member
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.
#112623 07/31/01 05:45 PM
A
Anonymous
Unregistered
>the White Conductor (Hot) and Red Conductor (Neutral)
I'm not coming to help you after all.

#112624 07/31/01 10:38 PM
Joined: Nov 2000
Posts: 2,236
Likes: 1
Member
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
#112625 08/01/01 06:46 AM
Joined: Dec 2000
Posts: 4,291
Member
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.

#112626 08/01/01 07:45 AM
Joined: Nov 2000
Posts: 2,236
Likes: 1
Member
SOW 2000V written right on the jacket...

Mining Cable = SOW


-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI
#112627 08/01/01 02:29 PM
Joined: Jun 2001
Posts: 642
N
Member
thank god we don't see mining cable here
does AHJ or OSHA do any thing there?


ed
#112628 08/01/01 04:45 PM
Joined: Jan 2001
Posts: 1,044
Tom Offline
Member
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.
#112629 08/01/01 06:47 PM
Joined: Dec 2000
Posts: 4,291
Member
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

#112630 08/01/01 11:42 PM
Joined: Nov 2000
Posts: 2,236
Likes: 1
Member
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

Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *
2023 National Electrical Code (NEC)
2023 NEC Now Available!
 
* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Samurai
Samurai
Fl.
Posts: 46
Joined: May 2007
Top Posters(30 Days)
BigB 8
triple 3
Popular Topics(Views)
302,642 Are you busy
231,940 Re: Forum
216,591 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5