ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
GFCI's pops in large numbers
by dsk - 10/21/21 02:03 AM
Need some info on Japanese outlets, 200V 15A
by andey - 10/20/21 08:05 AM
Wire sizing
by watersparkfalls - 10/19/21 07:27 AM
nec 110.3 (B)
by watersparkfalls - 10/19/21 07:09 AM
A 5-20(20a) receptacle is legal on a 15a circuit?
by libellis - 10/10/21 12:46 PM
New in the Gallery:
240/208 to a house
240/208 to a house
by wa2ise, October 9
Now you know.
Now you know.
by Tom_Horne, September 7
Who's Online Now
0 members (), 22 guests, and 20 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#36509 04/08/04 03:23 PM
Joined: Mar 2004
Posts: 10
C
Member
A customer of mine Mon morning had a pole out front hit which ripped the 3Phase 240v Delta service off. Had a couple of burnt breakers and water heater.
Have two 200a panels one of which is fed from a 100a 3p breaker out of the first panel. The three pole 100 was burnt badly as well as one of the buss bars feeding it.
In the panel, which is fed by the 100a, had three burn t 2p one 3p breaker. What do think caused the burning?

#36510 04/08/04 03:35 PM
Joined: Feb 2002
Posts: 183
N
Member
Was there any higher votage on the pole that might have contacted the feeder on the way down?

#36511 04/08/04 03:52 PM
Joined: Mar 2004
Posts: 10
C
Member
There is, which makes me think of something. Another one of my customers which is in an industrial park farther west,
lost a primary leg to the xfmr. The Power co was troubleshooting it. During the day while I was waiting for them to fix the hit pole, I hunted down the trouble man who I met with, and he said a cut out down the line was open. Maybe what happened was when the low voltage line pulled off it snapped into the primary, which opened the cutout and also fried my breakers inside this other building... Interesting, I didnt put the two together


Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *

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

 

Member Spotlight
timmp
timmp
Leo, IN, USA
Posts: 28
Joined: June 2004
Top Posters(30 Days)
dsk 6
Popular Topics(Views)
284,721 Are you busy
217,347 Re: Forum
203,699 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5