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IEEE Std P848/D2a, Jun 2026 · Versioni

IEEE Std P848/D2a, Jun 2026 是电气电子工程师学会的草案，题为“IEEE Approved Draft Standard for Procedure for the Determination of the Ampacity Derating Factor for Fire-Protected Cable Systems”；公开目录标为现行（Active），著录年份为 2026 年。