QGDW 12562-2024 超特高压盘形悬式瓷绝缘子用瓷件原材料、工艺和检验规则

ICS 29.080.10 CCS K 40/49 备案号：68965-2019 国家电网有限公司企业标准 Q/GDW 12562—2024 超特高压盘形悬式瓷绝缘子用瓷件 原材料、工艺和检验规则 Technical specification of porcelain for UHV cap-and-pin insulator 2024-12-31发布 2024-12-31实施 国家电网有限公司 发 布 Q/GDW 12562—2024 目 次 前言 ····························································································································· Ⅲ 1 范围 ························································································································· 1 2 规范性引用文件 ·········································································································· 1 3 术语和定义 ················································································································ 1 4 瓷件技术要求 ············································································································· 1 4.1 一般要求 ············································································································ 1 4.2 参数指标和性能要求 ····························································································· 2 5 原材料技术要求 ·········································································································· 3 5.1 一般要求 ············································································································ 3 5.2 主要原材料要求 ··································································································· 3 5.3 其他坯料和釉料用原料的检验 ················································································· 4 5.4 坯料性能的抽查 ··································································································· 5 5.5 釉料性能的抽查 ··································································································· 6 5.6 瓷砂性能要求 ······································································································ 7 6 生产工艺控制 ············································································································· 7 7 瓷质性能检测 ············································································································· 7 7.1 基本要求 ············································································································ 7 7.2 检测项目及方法 ··································································································· 7 7.3 结果判定 ············································································································ 8 8 试验方法 ··················································································································· 8 8.1 取样方法 ············································································································ 8 8.2 外观检查 ············································································································ 8 8.3 尺寸偏差及形位公差检查 ······················································································· 8 8.4 内水压剔除处理 ··································································································· 8 8.5 压缩试验 ············································································································ 8 8.6 打击试验 ············································································································ 9 8.7 孔隙性试验 ········································································································· 9 附录 A（资料性） 瓷件生产过程中的工艺控制 ······························································ ······· 10 附录 B（资料性） 瓷绝缘子生产线瓷件取样原则及试样制作 ··················································· 14 附录 C（资料性） 瓷件化学成分测试方法 ······························································ ············· 16 附录 D（资料性） 瓷件体积密度检测方法 ······························································ ············· 17 附录 E（资料性） 瓷件真气孔率检测方法 ······························································ ·············· 18 附录 F（资料性） 瓷件微观形貌检测方法 ······························································ ·············· 19 附录 G（资料性） 瓷件弯曲强度及 A 值检测方法 ······························································ ···· 21 附录 H（资料性） 加强金具的瓷件强度试验方法 ······························································ ···· 23 附录 I（资料性） 瓷件电气性能试验方法 ······························································ ·············· 26 I