ICS 27.100 CCS F 29 备案号： 53939-2016 准 T/CEC 704—2022 电力用直流守护电源系统 DC guard power supply system for power projects 2022-10-26 发布 2023-02-01 实施 中国电力企业联合会 发 布 《电子编加稿件》 XM95207 责 编 ：李耀阳 成品： 210*297 责校：李 楠 版心： 166*238 字数： 45字*43行 天35 地 24 订 24 切 20 描图： 2 全国团体标准信息平台 中国电力企业联合会标准 电力用直流守护电源系统 T/CEC 704—2022 * 中国电力出版社出版、印刷、发行 （北京市东城区北京站西街 19号 100005 http://www.cepp.sgcc.com.cn ） * 2023年2月第一版 2023年2月北京第一次印刷 880毫米× 1230毫米 16开本 2印张 59千字 * 统一书号 155198·4612 定价42.00元 版 权 专 有 侵 权 必 究 本书如有印装质量问题，我社营销中心负责退换 T/CEC 704—2022 全国团体标准信息平台 T/CEC 704—2022 I 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 型号和基本参数 ······························································································································· ··········· 2 4.1 型 号 ······························································································································· ························ 2 4.2 基本参数 ······························································································································· ················ 2 5 技术要求 ······························································································································· ······················· 3 5.1 正常使用的环境条件 ···························································································································· 3 5.2 正常使用的电气条件 ···························································································································· 3 5.3 一般要求 ······························································································································· ················ 4 5.4 电气间隙和爬电距离 ···························································································································· 5 5.5 电气绝缘性能 ······························································································································· ········ 5 5.6 防护等级 ······························································································································· ················ 6 5.7 噪 声 ······························································································································· ························ 6 5.8 温 升 ······························································································································· ························ 6 5.9 蓄电池组容量 ······························································································································· ········ 6 5.10 事故放电能力 ······························································································································· ······ 6 5.11 负荷能力 ······························································································································· ·············· 6 5.12 连续供电能力 ······························································································································· ······ 7 5.13 控制母线的电压调整功能 ·················································································································· 7 5.14 电压和电流调节范围 ·······