This part of IEC 61753 contains the minimum tests, test severities and measurement requirements which a sealed fibre optic closure need to meet in order to be categorised as meeting the IEC standard for category S - Subterannean, as defined in Table A.15 of IEC 61753-1:2018.
EN IEC 61753-111-09:2021由欧洲电工标准化委员会 IX-CENELEC 发布于 2021-10-22,并于 2022-01-19 (7) 实施,于 2024-10-19 (7) 废止。
EN IEC 61753-111-09:2021在国际标准分类中归属于: 33.180.20 纤维光学和光学互连器件。
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