Hi Gary, I would be very cautious here. Magnetic attraction can degrade over time due to a variety of factors (thermal cycling, plating migration, corrosion, magnetic field cycling, among others). While the appliance is stationary, what about damage due to shock or vibration during shipping? I think in general, 63268-1 addresses this in clause 4.1.5:
4.1.5 Constructions and components not specifically covered Where the equipment involves technologies, components and materials or methods of construction not specifically covered in this standard, the equipment shall provide safeguards not less than that generally afforded by this standard and the principles of safety contained herein. The need for additional detailed requirements to cope with a new situation should be brought promptly to the attention of the appropriate committee. This seems novel enough to me that it would need to be brought before the committee. Best regards, Mark Stultz From: Gary Tornquist <05big...@gmail.com> Sent: Tuesday, 8 February, 2022 9:52 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Magnets as reliable fasteners You don't often get email from 05big...@gmail.com<mailto:05big...@gmail.com>. Learn why this is important<http://aka.ms/LearnAboutSenderIdentification> CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Hello experts, Can magnets be used to fasten line voltage assemblies to the inside of an electrical panel? To restate my concerns, if strong enough could they be considered to reliably maintain creepage and clearance distances, as well as not overstressing wires terminating at the assembly? And how strong is strong enough? Test T2 calls for pushing on parts in the most unfavorable direction with 10 newtons of force for 5 seconds - is this an appropriate test? The application is in stationary equipment that does not include motors, so vibration should not be a concern. I welcome advice - this is the first time I've seen such proposed construction and I don't know a standard such as 62368 to mention it. Cheers, Gary Tornquist Product Safety Consultants Opinions expressed are my own, not of my employer or client - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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