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梯子 第4部分:铰链梯 Ladders—Part 4: Hinged ladders ICS 13.110 CCS J 09 中华人民共和国国家标准 GB/T 17889.4—2024 代替 GB/T 17889.4-2012 2024-08-2 3发布 2024-08-2 3实施 国家市场监督管理总局 国家标准化管理委员会 发 布 目 次 前言 ····································································································· Ⅲ 引言 ····································································································· Ⅴ 1 范围 ·································································································· 1 2 规范性引用文件 ······················································································ 1 3 术语和定义 ··························································································· 1 4 功能尺寸 ······························································································ 4 4.1 一般要求 ························································································· 4 4.2 铰链梯用作倚靠式梯子或自立式梯子 ··························································· 5 4.3 多铰链梯用作平台 ··············································································· 5 4.4 多铰链梯用作支座 ··············································································· 6 5 要求 ·································································································· 7 5.1 一般要求 ························································································· 7 5.2 台板件 ··························································································· 7 6 试验方法 ······························································································ 7 6.1 一般要求 ························································································· 7 6.2 铰链梯强度试验 ················································································· 7 6.3 多铰链梯的附加强度试验 ········································································ 8 6.4 铰链循环试验 ···················································································· 9 6.5 铰链梯用作平台时的试验 ········································································ 9 7 使用信息 ···························································································· 11 7.1 一般要求 ························································································ 11 7.2 标志 ····························································································· 11 7.3 使用说明书 ····················································································· 11 附录A (规范性) 铰链梯试验顺序 ·································································· 13 参考文献 ································································································ 15 GB/T 17889.4—2024 Ⅰ
GB-T 17889.4-2024 梯子 第4部分 铰链梯
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