GB/T 12706.2-2020 额定电压1kV（Um=1.2 kV）到35kV（Um=40.5kV）挤包绝缘电力电缆及附件第2部分∶额定电压6kV（Um=7.2 kV）到30kV（Um=36kV）
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文档分类 : 国家标准
更新时间 : 2023-12-20 10:56:39
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