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NEMA US 80021-2022

M00000827

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NEMA US 80021-2022 Design Considerations for MV Switching Equipment in Underground Applications

standard by National Electrical Manufacturers Association, 03/01/2023

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Sub-surface mounted or padmounted switchgear (when connected to underground cables); devices covered by IEEE C37.20.2 or C37.20.3 are outside the scope of this paper.