You'll find the foil used in IEC 950 clause 5.2.3 for hipot testing insulating coatings. It would be reasonable for use foil as a test electrode for many insulation systems such as enclosures, should the insulation be in question. I would consider it unusual to test most product surfaces this way unless there were some reason to suspect insulation. However, any breakdown would certainly be proof of insufficient insulation. You will also find the use of foil in IEC 950 clause 5.2.2.The test is for Class II (ungrounded) equipment. The 10 x 20 cm foil size represents the hand and is used measure leakage to the surface of the product.
Bob Johnson Gary McInturff wrote: > Posting this for a friend who's as confused as I am. > They bought a company a few years ago that had products which had > Factory Mutual, ETL, CSA, UL marks. Some products had one mark and the > others something else. At any rate after a few years he was visited by, I > believe Factory Mutual. Hidden in their documents was a requirement for > doing a factory dielectric withstand test with the equipment wrapped in > foil. I vaguely remember seeing these requirements but neither of us can > remember when or where. Maybe UL 478 or UL 114? > Do any of you have a better recollection? He is trying to find the > set up diagrams. > Thanks > Gary > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to [email protected] > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to [email protected], > [email protected], [email protected], or > [email protected] (the list administrators). --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
