NB／T 31040-2021 具有短路保护功能的电涌保护器

ICS 29.240.10 CCS K 30 NB 中华人民共和国能源行业标准 NB/T 31040—2021 代替 NB/T 31040—2012 具有短路保护功能的电涌保护器 Surge protective devices with integral short circuit protection function 2021-04-26 发布 2021-07-26 实施 国家能源局 发布 NB/T 31040—2021 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 使用条件································································································································2 5 分类········································································································································2 6 SPD 优选值····························································································································2 7 技术要求································································································································3 8 型式试验································································································································7 9 常规试验和验收试验··············································································································33 参考文献··································································································································34 Ⅰ NB/T 31040-2021 前 言 本文件按照GB/T 1.1—2020《标准化工作导则 第1部分：标准化文件的结构和起草规则》的规定起草。 本文件代替NB/T 31040—2012《具有短路保护功能的电涌保护器》。 本文件与NB/T 31040—2012的主要差异如下： ——分类中增加开关型和密封式的分类，开关式适用于基于火花间隙技术的产品，密封式适用于基于石墨间隙技术的产品（见5.1.3）； ——特殊型式试验列表，将试验分为密封式产品适用的试验和密封式产品适用的试验（见8.1）； ——根据IEC 61643-11:2011更新相关的试验，包括电压保护水平（见8.4.3）、动作负载（见8.4.4）、环境试验材料试验（见8.6）、特殊SPD设计的附加试验（见8.7）和制造厂商的特殊的附加试验（见8.8）等； ——补充密封式产品适用的短路试验（见8.4.5）。 请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。 本文件由中国电器工业协会提出。 本文件由能源行业风电标准化技术委员会（NEA/TC 1）归口。 本文件起草单位：上海电器科学研究院、疆德电气（上海）有限公司、浙江正泰电器股份有限公司、上海良信电器股份有限公司、力藏电气有限公司、上海诺雅克电气有限公司。 本文件主要起草人：李人杰、李红雷、许年生、彭静、杨健、白建社、杨帆、王宇轩。 本文件所代替标准的历次版本发布情况为： ——NB/T 31040—2012。 II