DLT5442-2020输电线路杆塔制图和构造规定VIP免费

月IJ舀 根据《国家能源局关于印发 2017 年能源领域行业标准制(修)订计划及英文版翻译出版计划的通知)( 国能综通科技〔2017〕52号)的要求 ，标准编制组经广泛调查研究 ，认真总结近年来铁塔和钢管杆的设计 、制造、安装等方面的经验 ，并在广泛征求 意见 的基础上，对《输电线路铁塔制图和构造规定》DL/ T 54 2一2o10(以下简称“原标准”)进行 了修订。 本标准主要技术内容有 :总则 、术语和符号、一般规定 、图例及代号、图纸 内容 、杆塔分段和构件编号、杆塔构造等。 本次修订的主要技术 内容是 : 1. 对原标准中的铁塔构造 、组 合构件 、钢管结构等章节内容进行了整合 ; 2. 调整了螺栓无扣长度 ，增加 了单螺母带一垫 、一 薄螺母 的图例; 3. 补充 了构件流水号大于 9 的编号方案 ; 4. 补充 了大规格角钢的准线及螺栓布置要求 ; 5. 完善了钢管塔的相关规定。 目次1总则··· ············ ············ ························ ⋯⋯ ( 1 )2术语和符号························，·······················⋯⋯ ( 2 ) 2. 1术语 ······················································⋯ ⋯ ( 2 ) 2. 2符号 ······················································⋯ ⋯ ( 2 )3一般规定·················································⋯⋯，’ ( 4 ) 3. 1图纸幅面················································⋯ ⋯ ( 4 ) 3. 2图标 ······················································⋯ ⋯ ( 5 ) 3. 3比例 ······················································⋯ ⋯ ( 5 ) 3. 4 计量单位 ················································⋯⋯ ( 5 ) 3. 5线型 ··························...