IEEE NESCIR549-2008 标准详情
- 标准号:IEEE NESCIR549-2008
- 中文标题:第26节:强度要求
- 英文标题:national electrical safety code
- 标准类别:国际电工协会标准IEEE
- 发布日期:2008-03-19
The strength factor used for weathering steel poles subject to the extreme wind considerations has been0.80, as mentioned in Rule 260B2. However, since this is for materials not otherwise specified, and Rule261A1b addresses metal structures, this doe
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