ICS 29.080.10 CCS K 48 备案号： 68965-2019 中华人民共和国电力行业标准 DL/T 2387—2021 10 kV ～35 kV 线路柱式复合绝缘子 技术规范 Technical specification for comp osite line post insulators of 10 kV～35 kV transmission lines 2021-12-22 发布 2022-03-22 实施 国家能源局 发 布 DL/T 2387—2021 I 目 次 前言 ······························································································································· ···································· II 1 范 围 ······························································································································· ······························· 1 2 规范性引用文件 ······························································································································· ··········· 1 3 术语和定义 ······························································································································· ··················· 1 4 型 号 ······························································································································· ······························· 2 5 标 志 ······························································································································· ······························· 2 6 使用条件 ······························································································································· ······················· 3 7 技术要求 ······························································································································· ······················· 3 7.1 外 观 ······························································································································· ························ 3 7.2 尺寸特性 ······························································································································· ················ 3 7.3 端头附件 ······························································································································· ················ 4 7.4 伞 套 ······························································································································· ························ 4 7.5 芯 棒 ······························································································································· ························ 4 8 检验规则 ······························································································································· ······················· 4 8.1 试验分类 ······························································································································· ················ 4 8.2 设计试验 ······························································································································· ················ 5 8.3 型式试验 ······························································································································· ················ 5 8.4 抽样试验 ······························································································································· ················ 5 8.5 逐个试验 ······························································································································· ················ 6 8.6 定型试验 ······························································································································· ················ 6 9 试验方法 ······························································································································· ······················· 7 9.1 硬度变化试验 ······························································································································· ········ 7 9.2 干工频耐受电压试验 ···························································································································· 8 9.3