GBT 47799-2026 城镇民用建筑电气火灾风险评价导则

ICS 13.220.01 CCS C 81 中华人民共和国国家标准 GB/T 47799 —2026 城镇民用建筑电气火灾风险评价导则 Guidelines for risk assessment of electrical fires in civil buildings 2026 ⁃07⁃02 发布 2027 ⁃02⁃01 实施 国家市场监督管理总局 发 布 国家标准化管理委员会 GB/T 47799—2026 目 次 前言··························································································································Ⅲ 引言··························································································································Ⅳ 1 范围·······················································································································1 2 规范性引用文件 ········································································································1 3 术语和定义··············································································································1 4 评价内容·················································································································1 4.1 基本要素···········································································································1 4.2 安全用电管理单元 ·······························································································1 4.3 电气系统单元·····································································································2 5 评价步骤及流程 ········································································································3 5.1 通则·················································································································3 5.2 工作流程···········································································································3 6 前期准备·················································································································4 6.1 前期准备工作要素 ·······························································································4 6.2 资料收集···········································································································4 6.3 建筑用电基本情况核查 ·························································································4 6.4 现场检查范围的确定 ····························································································5 7 现场检查·················································································································5 7.1 安全用电管理单元现场检查的内容及方法 ·································································5 7.2 电气系统单元现场检查的要求和方法 ·······································································8 7.3 特殊场所电气系统单元现场检查的附加要求和方法 ····················································30 8 评价结论···············································································································35 8.1 安全用电管理单元电气火灾风险等级判定 ································································35 8.2 电气系统单元电气火灾风险等级判定 ······································································35 8.3 民用建筑电气火灾风险等级评价 ············································································36 9 评价报告···············································································································37 附录 A （规范性） 安全用电管理单元现场调查问卷大纲 ·······················································38 附录 B （规范性） 电气系统单元现场检查的测量参数 ··························································39 附录 C （资料性） 电气系统运行参数现场检测方法 ·····························································41 C.1 红外测温法······································································································41 C.2 比较判断法······································································································42 C.3 热像图判断法···································································································42 C.4 火花和电弧放电检测法 （超声波探测法 ）··································································42 Ⅰ