Ref. 220.127.116.11.2: Do components that fill an opening in a fire enclosure have to be V-1 , regardless of their proximity to a PIS?
A component that meets the applicable IEC component requirements e.g. appliance inlet that complies with IEC 60320-1 may meet the flammability requirement for that specific component.
If the applicable component is not assessed to a component requirement, please remember components safeguards need to meet the applicable component requirements and includes plastic parts then thermoplastic parts that make up part of a fire enclosure need a minimum flammability rating of V-1 (or tested in accordance with S.1.) If the enclosure is in close proximity to a PIS, £13 mm for arcing; £5 mm for resistive, it then needs a minimum flammability rating of V-0 (or tested per S.2.)
Please consider acquiring the technical report IEC TR 62368-2, Explanatory information related to IEC 62368-1:2018. This document provides additional background on the development of the Standard and the hazard based engineering used to formalize the requirements.