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Prod Sup
Guest	Posted: Tue Sep 09, 2026 5:03 pm    Post subject: Logbook with Plastic Cover   Our auditor gave me a callout because she said my logbook with plastic cover is a violation because it can cause ESD. Is this a valid call-out even if the units don't come in contact with my logbook? Prod Sup
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FARel Engr
Joined: 20 Jun 2026 Posts: 76	Posted: Thu Sep 11, 2026 3:51 pm    Post subject:   Of course, Prod Supv, this is a valid call-out. Get a field meter and measure the voltage generated by your plastic cover. Chances are that it will be in the hundreds of volts. The electric field caused by such a large build-up can charge up your unit even if it doesn't contact the cover. Sudden grounding of your charged unit while in this field will damage it by CDM ESD. FARel Engr
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