HI Lori,
Your interpretation is the same as mine, though I haven’t found an IEC
component standard that specifies the flammability rating of optical bulkhead
connectors. There may not actually be one given that they carry no electrical
power.
The one I currently use is HB rated but I do think it should be V-1 regardless
of it’s proximity to a PIS.
Best regards,
Glyn
From: Lori Young <lyo...@productsafetyinc.com>
Date: Friday, 17 May 2019 at 14:51
To: "Payne, Glyn" <gl...@solidstatelogic.com>, "EMC-PSTC@LISTSERV.IEEE.ORG"
<EMC-PSTC@LISTSERV.IEEE.ORG>
Subject: RE: 62368-1 Openings in a fire enclosure
Hi Glyn,
If I am understanding the sited clause correctly, the V-1 class material is
needed for any material/component that fills an opening in the enclosure.
Which means it is acting as part of the enclosure and therefor is required to
meet the V-1 material OR the other requirements listed.
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.
Best Regards,
Lori
Lori A.Young | Senior Compliance Consultant | Product Safety Consulting, Inc.
www.productsafetyinc.com
Your Outsourced Compliance Department
Product Safety Consulting, Inc.
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Bensenville, IL 60106
Cell: 224-388-2050
Tel: 630-238-0188
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lyo...@productsafetyinc.com
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From: Payne, Glyn <00000d283c0acebb-dmarc-requ...@ieee.org>
Sent: Friday, May 17, 2019 8:40 AM
To: 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
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