And if these connectors, such as a power socket, meet the component requirements they are acceptable – whether or not the material is V-1.
This would be a case where the component requirements override the product standard requirements. (I wonder if the TC108 folks realize how often that can happen? And whether or not they would see it as a problem.) :>) br, Pete Peter E Perkins, PE Principal Product Safety & Regulatory Affairs Consultant PO Box 1067 Albany, Ore 97321-0413 503/452-1201 IEEE Life Fellow <mailto:p.perk...@ieee.org> p.perk...@ieee.org Entropy ain’t what it used to be From: Nyffenegger, Dave <dave.nyffeneg...@bhemail.com> Sent: Friday, May 17, 2019 11:33 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] 62368-1 Openings in a fire enclosure Bulkhead connectors protrude through fire enclosure openings both sides all the time. From: John Woodgate [mailto:j...@woodjohn.uk] Sent: Friday, May 17, 2019 2:24 PM To: EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] 62368-1 Openings in a fire enclosure I would agree with you if it said 'Material that fills an opening...', but it says 'Material for components that fill an opening...', which is just differently bad. It appears to apply only if there are more than one component in the opening, but all consist of only one material. In that case, one can distinguish between the opening and the items that enter/exit through it. But why would anyone put a component half-inside and half outside a fire enclosure? Best wishes John Woodgate OOO-Own Opinions Only J M Woodgate and Associates www.woodjohn.uk <http://www.woodjohn.uk> Rayleigh, Essex UK The UK is a sovereign state, not a Zollverein state On 2019-05-17 18:58, Richard Nute wrote: Hmm. Interesting English usage statement. If something fills an opening, the opening no longer exists. So, how do you know how to apply the requirement? Rich From: Payne, Glyn <mailto:00000d283c0acebb-dmarc-requ...@ieee.org> <00000d283c0acebb-dmarc-requ...@ieee.org> Sent: Friday, May 17, 2019 6:40 AM To: EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: [PSES] 62368-1 Openings in a fire enclosure Hi Experts, I have a EN 62368-1 question regarding openings in a fire enclosure… 6.4.8.2.2 Requirements for a fire enclosure Material for components that fill an opening in a fire enclosure or that is intended to be mounted in such opening shall: * comply with the flammability requirements of the relevant IEC component standard; or * be made of V-1 class material; or * with Clause S.1. For PS2 and PS3 circuits I have been told by a test house that connectors in fire enclosure openings only have to be V-1 class material if they are close to a potential ignition source (PIS). My interpretation is that a fire enclosure is a fire enclosure, regardless of where, within a fire enclosure a fire may start and so anything filling an opening must be V-1. I am interested to know how do other engineers interpret this clause. Many thanks, Glyn Payne Compliance and Design Support Engineer Solid State Logic UK Limited Registered as a limited company in England and Wales (Company No:5362730) Registered Office: 25 Spring Hill Road, Begbroke, Oxford OX5 1RU, United Kingdom - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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