ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Canada for the win
by gfretwell - 12/06/22 08:28 PM
Tiny Homes and the NEC
by gfretwell - 12/06/22 01:43 AM
EMC Glands on Motors
by Trumpy - 12/01/22 06:12 AM
Ground Rods: Installation and Hook-Up
by Trumpy - 12/01/22 05:54 AM
Happy Thanksgiving all!
by gfretwell - 11/30/22 05:55 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
2 members (gfretwell, Scott35), 27 guests, and 12 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#221819 08/07/22 11:05 AM
Joined: Mar 2004
Posts: 795
B
BigB Offline OP
Member
Some of the advice being passed around on some of the RV forums is pretty bad, some of the "advisors" claim to have electrical or engineering backgrounds. A guy just started a topic, he has a barn fed with a neutral bonded 3 wire service, he had electricians hook up a 4 wire 50 amp RV service and now his coach batteries overcharged and got ruined, he is asking if the electrician is to blame. Everything he describes points to a proper installation and a coincidental converter/charger failure in the RV, yet the speculation continues about the electrician/electrical being to blame. (The electricians came back and checked everything and found nothing wrong)
Here's the latest response this morning regarding the neutral bonded service in the barn.

Attached Images
reply.jpg
Last edited by BigB; 08/07/22 11:08 AM.
BigB #221820 08/07/22 11:59 AM
Joined: Jul 2004
Posts: 9,772
Likes: 14
G
Member
It sounds like they just have a loose neutral somewhere between the circuit the charger is on and the transformer if the readings are really 140/100. All the rods in the world won't help that. If it is bad in the wire coming out of the meter pan to the service disconnect enclosure bus bar, call the utility. The problem is on their side. Otherwise it is on the customer side somewhere.


Greg Fretwell
gfretwell #221824 08/07/22 12:47 PM
Joined: Mar 2004
Posts: 795
B
BigB Offline OP
Member
There are no readings of 140/100, that guy was just offering a possible scenario. The only problem is the batteries overcharged and the owner is looking to blame the electric hookup, and others are now chiming in blaming the neutral/ground bond on the 3 wire service to the barn.

BigB #221825 08/07/22 06:01 PM
Joined: Jul 2004
Posts: 9,772
Likes: 14
G
Member
OK. I see the point tho. Most problems like this end up being a bad neutral. A meter will find that right away as soon as you start moving loads around. If the voltage is right, the guy just might have a bad charger.


Greg Fretwell

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
togol
togol
NW In. USA
Posts: 421
Joined: September 2005
Top Posters(30 Days)
Trumpy 6
NORCAL 3
Popular Topics(Views)
300,610 Are you busy
230,296 Re: Forum
215,075 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5