ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
Questioning the electrical norms
by LongRunner - 09/23/20 06:38 AM
Smoke & mirrors?
by HotLine1 - 09/21/20 03:42 PM
Pool Lights?
by Papa - 09/18/20 05:26 PM
Ever been afflicted by Gout?
by mbhydro - 09/15/20 05:50 PM
120/208 gives 240? please clarify
by NORCAL - 09/13/20 01:08 AM
New in the Gallery:
Facebook follies, bad wiring
FPE in Germany pt.2
Who's Online Now
0 registered members (), 15 guests, and 15 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
RV Park Electrical #12188 08/02/02 11:57 PM
Joined: Aug 2002
Posts: 1
I
Inspector 102 Offline OP
Junior Member
In an RV PArk, I have voltage variations even though conductor sizes have been increase to compensate. I have a camper that is using a voltage converter to maintain voltage. Could this cause a back feed through the system and give me false readings. I am also getting a false ground reading on my voltage detector even though I feel the wiring is correct. Any thoughts?

Work Gear for Electricians and the Trades
Re: RV Park Electrical #12189 08/03/02 12:23 AM
Joined: Oct 2000
Posts: 3,960
Bill Addiss Offline
Member
Inspector 102,

Welcome aboard!
I sure that some of our more technical-oriented members can give you a better answer than I, But I just wanted to mention an experience I had once.

I was trying to figure out which breaker was for the sales counter at a store once. I could see the cable for it's entire length back to the panel and individual breaker. There were maybe 4 receptacles on the circuit and the only items plugged in were 1 computer through a small UPS and a Calculator. The computer was off, the calculator was on and I could see it from the panel location. I could not get that calculator to turn off even after removing the wire from the breaker. With the circuit off (and wire disconnected) the calculator was still on and I was reading about 115V to N/Gr on the wire.

What seemed to be happening was that the UPS was feeding back into it's supply circuit somehow and into the calculator across the room (same circuit). I could see nothing wrong with the wiring or any signs of tampering with the UPS either. I took the UPS out and everything was normal again.

Bill


Bill
Re: RV Park Electrical #12190 08/03/02 12:48 PM
Joined: Aug 2001
Posts: 7,520
P
pauluk Offline
Member
Welcome!

Do you know what sort of "voltage converter" is in use? Is it just a simple buck-boost transformer, or a more complex electronic unit?

If the latter, then it's possible that harmonics or other spurious signals from the converter are giving you misleading voltage readings.


Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

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

 

Member Spotlight
noderaser
noderaser
Portland, Oregon, United States
Posts: 404
Joined: March 2007
Show All Member Profiles 
Top Posters(30 Days)
Trumpy 8
NORCAL 3
Popular Topics(Views)
270,009 Are you busy
204,412 Re: Forum
192,623 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3