There are a lot of exemptions later in 6.4.4, the most significant
perhaps being:
/These requirements do not apply to: – parts with a size of less than 1
750 mm3;
/
But you really need to study the standard yourself, to see the other
exemptions.
On 2020-02-04 13:55, McBurney, Ian wrote:
Dear colleagues.
I have a question regarding the flammability rating of components
located within a fire enclosure.
We have been told by a safety approval engineer that under clause
6.4.6 of 62368-1:2014 that all combustible material within a fire
enclosure and not part of a PS2 or PS3 circuit must have be V-2 or
better flammability rating. For example, internal harnesses &
connectors which carry low level signals between PCBs and do not carry
supply voltages must have a rating of V-2 or better.
Does this mean that any component within a fire enclosure regardless
of location must have a minimum flammability rating of V-2 or pass the
convoluted Annex S.1 test?
Many thanks in advance;
Ian McBurney
Lead Compliance Engineer
Allen & Heath Ltd.
Kernick Industrial estate,
Penryn,
Cornwall. TR10 9LU. UK.
Tel: 01326 372070
Email: [email protected]
Allen & Heath Ltd is a registered business in England and Wales,
Company number: 4163451. Any views expressed in this email are those
of the individual and not necessarily those of the company. -
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