Ghost voltages


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Old 06-10-18, 05:09 AM
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Ghost voltages

Hi All, there are several links out there on Ghost or Phantom voltages when measuring with digital meters.
Here is one. http://support.fluke.com/find-sales/...105317_A_w.pdf
Geo
 
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Old 06-10-18, 05:15 AM
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Thank you for posting that.
 
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Old 06-10-18, 07:23 AM
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Ya,all these years and never really gave much thought as to what was causing them,I guess I just accepted it.
 
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Old 06-10-18, 01:27 PM
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As an electrician...... I rarely, if ever, use a digital voltmeter when checking for circuit voltages in AC wiring. The early voltage testers called wiggys had an electromagnetic coil in them which negated open circuit (ghost voltages). Square-D-WIGGY-VOLTAGE-TESTER

That's why we recommend using analog meters as they are low impedance and are not subjest to induced voltages.

Fluke sells a whole aramada of proper voltage checkers starting from around $30.
I use specifically a Fluke T+ tester which I consider to be the best tester for the money.
Here's an awesome deal at $95. Fluke-t-pro-1ac-kit
 
 

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