I agree with Ron . . . When I was the BABT ALE (Aproval Liaison Engineer) with my last company, the same issue arose during my intitial BABT audit with verifying the Hi-Pot tester's proper operation. I too fashioned a device (used a plastic box with terminals and internal resistors) to test the Hi-Pot tester prior to it's being put into service on a daily basis.
That is the way to go . . . inexpensive & easy. John Juhasz Fiber Options Bohemia, NY -----Original Message----- From: Ron Pickard [mailto:[email protected]] Sent: Tuesday, September 26, 2000 2:12 PM To: [email protected] Cc: [email protected] Subject: Re: Verifying functionality of the equipment for Production Safety Testing Hi Paul, First, I would caution you from holding the hipot test lead while the tester is in operation. It could certainly be hazardous to your health, and all that. I wonder if this is one of those "don't try this at home" cases. Anyway, in another life while undergoing an initial BABT 340 quality system audit, the auditor asked us "How do we know that the tester is working properly, and how do you know the tester will give a failure indication when expected?" Well, these were questions we had not anticipated and were unprepared with a quick answer. To meet the auditor's challenge, however, we fashioned a setup that verified the complete tester, including cables. This verification setup included 2 resistors (one for hipot and the other for ground continuity). The values for each resistor were selected so that the testers would indicate a failure at just over the current trip point of each tester. To verify the setup each day, the testers were tested using these resistors (a failure indication was a pass and a pass indication was a failure). The resistors and the test equipment were all placed on a routine calibration cycle. This satisfied BABT and other safety agencies that performed the facility/product audits. I hope this helps. Best regards, Ron Pickard [email protected] ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: [email protected] Michael Garretson: [email protected] For policy questions, send mail to: Richard Nute: [email protected]
