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现行 IEEE C57.12.21-2000
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American National Standard Requirements for Pad-Mounted, Compartmental-Type, Self-Cooled, Single-Phase Distribution Transformers With High-Voltage Bushings: High Voltage (34 500 GrdY/19 920 V and Below) and Low Voltage (240/120 V, 167 kVA and Smaller) 美国国家标准对带高压套管的垫装、隔室式自冷单相配电变压器的要求:高压(34 500 GrdY/19 920 V及以下)和低压(240/120 V、167 kVA及以下)
发布日期: 1992-12-31
本标准旨在作为确定所涵盖设备的性能、互换性和安全性的基础,并帮助正确选择此类设备。
This standard is intended for use as a basis for determining performance, interchangeability, and safety of the equipment covered, and to assist in the proper selection of such equipment.
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