YDT 5162-2017 通信管道横断面图集

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1 总则 ·······························································⋯⋯ 1 2 术语 ·······························································⋯⋯ 2 3 管道规格 ·················································........⋯⋯ 3 4 管道组群与组合方式 ··········································⋯⋯ 5 5 管道横断面图 ·············································.·····⋯⋯ 6 5.1 单孔塑料管组群 ·············，····························⋯⋯ 6 5.2 钢管组群 ···············································....⋯⋯ 1 7 5.3 多孔管组合 ·····················，··························⋯⋯ 2 5 5.4 水泥管组群与组合