ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 11
Admin 4
Recent Posts
1913 American Electrician's Handbook
by annemarie1. 07/27/17 03:10 PM
600 KW 120/208 3 Phase Y protection
by Yooperup. 07/24/17 12:20 PM
Green House wiring
by ghost307. 07/20/17 09:10 AM
Permit Snafus...AHJs and Contractors Jump in
by HotLine1. 07/18/17 08:06 PM
New in the Gallery:
Housebilding DIY wiring
Popular Topics(Views)
239,368 Are you busy
174,823 Re: Forum
167,215 Need opinion
Who's Online Now
0 registered members (), 53 guests, and 5 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#184794 - 02/21/09 10:55 PM Voltage Leakage Testing  
Ek64911  Offline
New Member
Joined: Sep 2005
Posts: 5
CT
Hi,
I was wondering if anyone here does voltage leakage testing. I have a customer that has asked my company to perform these tasks. I know little on this topic and I was wondering if someone could tell me what tools are required and where I could take training?

Thanks,

Craig


CT El.Unlimited Contractor
MA Master Electrician
RI El.Contractor

Work Gear for Electricians and the Trades

#184949 - 02/26/09 01:15 PM Re: Voltage Leakage Testing [Re: Ek64911]  
Zapped  Offline
Member
Joined: Oct 2002
Posts: 482
Huntington Beach, CA, USA
Do you mean voltage drop or current leak? A combination of the two would then be power loss, which is what I imagine they are attempting to find due to suspicion that they are paying for more power than they are actually using.

I'm sure there are some testing devices for more specific, but using an ammeter and a voltage meter you can probably narrow down a potential problem.

Current:

- With an active device, such as a motor/fridge/etc., you could take a an ammeter reading near the device and then back at the panel to see if there is a noteworthy difference, indicating a "leak", or draw, somewhere on the circuit.

- You could take an ammeter reading with the device on the circuit inactive to see if there is a current draw when there shouldn't be (again, take readings near the device and then back at the panel).

- You could simply shut off the main disco and see if the meter is still spinning

Voltage:

- Test voltage on a particular circuit at the panel and then at the end of the circuit run to find a difference

- You again try this with the circuit load activated to see if the voltage comes down under load.

Remember your Ohms law - voltage drop increases wattage at a particular amperage. A voltage drop can increase power consumption.

Good Luck!



Member Spotlight
Vlado
Vlado
Croatia
Posts: 28
Joined: February 2011
Show All Member Profiles 
Featured:

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

 

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.010s Queries: 15 (0.002s) Memory: 0.7443 MB (Peak: 0.8621 MB) Zlib enabled. Server Time: 2017-07-28 06:43:41 UTC