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February 2014

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Subject:
From:
Wayne Thayer <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Wayne Thayer <[log in to unmask]>
Date:
Thu, 27 Feb 2014 20:12:57 +0000
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I tried it and had to abandon it.  Lots of test equipment and soldering equipment has capacitors to earth ground in the power supply filter.  If you get several of these in parallel, then you can "fool" the GFI into tripping.  Big problem in hospitals, where GFI is mandatory just about everywhere--equipment either needs to be modified or built to special specs.

On the other hand, it keeps the electricians honest because they can't cheat on the neutral.  So you can have them installed, then pull them out.

If you're doing something where you need protection (like building/testing AC power supplies), use and isolation transformer.

Wayne

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Rivera, Raye
Sent: Thursday, February 27, 2014 3:01 PM
To: [log in to unmask]
Subject: [TN] GFI at Test and Troubleshoot Station

I have been tasked with ensuring that our functional test and troubleshooting workstations are set up safely. We are having some debate as to whether GFI protection is a good idea at these workstations. My question for the group is:

Have you ever had a GFI cause problems at a workstation?

I read a good thread on the technet archives about GFI at Hipot test, but I'm hoping for information at test stations in general.


Best regards,
Raye Rivera

QA Manager * Canoga Perkins



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