dlt 720-2000 电力系统继电保护柜、屏通用技术条件

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1、DL/T720-2000、‘前曰本标准是根据原电力工业部“综科教「1998]28号”文件下达的电力行业标准制定计划编制的。电力系统继电保护柜、屏是由继电保护装置、配套设备和辅助元器件组合而成的柜、屏，其技术性能和产品质量直接影响继电保护的运行效果。为了提高电力系统继电保护柜、屏的技术性能和产品质量，对电力系统继电保护柜、屏的技术要求、试验方法和检验规则制定一个行业标准是非常必要的。本标准中基本性能要求符合IEC60255系列标准及国内相关标准规定，单项技术指标根据国内实际使用要求而制定。本标准由全国电力行业继电保护标准化技术委员会提出并归口。本标准的起草单位:国家电力公司南京电力自动化设

2、备总厂、国家电力公司电力自动化研究院、国电南京自动化股份有限公司。本标准主要起草人:钟泽章、陈鼎坤、张钮、温刃钢、倪丹科、黄国祥。本标准由电力行业继电保护标准化技术委员会负责解释。DL/T720-2000目次前言1范围··················································································································⋯⋯12引用标准··································································

3、··········································⋯⋯13技术要求··············································，··················································，··········⋯⋯24试验方法············································································································⋯⋯85检验规则···············

4、····················，··············································，·························⋯⋯116标志、包装、运输、贮存···················································，···············，···················⋯⋯137其他···································································。··············，···········

5、······················一13中华人民共和国电力行业标准电力系统继电保护柜、屏通用技术条件GeneralspecificationsforprotectioncabinetsandDL/T720-2000panelsofelectricpowersystems1范围本标准规定了电力系统继电保护柜、屏(以下简称柜、屏)的技术要求、试验方法、检验规则、标志、包装、运输及贮存。本标准适用于电力系统中户内使用的柜、屏。作为柜、屏产品设计、生产和质量检验的依据。安装在柜、屏上的成套继电保护装置除了满足本标准规定外，还应满足有关国家标准和行业标准的要求。2引用标准下列标准所包含的

6、条文，通过在本标准中引用而构成为本标准的条文。本标准出版时，所示版本均为有效。所有标准都会被修订，使用本标准的各方应探讨使用下列标准最新版本的可能性。GB/T1184-19%形状和位置公差未注公差值GB/T1720-1979漆膜附着力测定法GB/T1804-1992一般公差线性尺寸的未注公差GB/T2423.1-1989电工电子产品基本环境试验规程试验A:低温试验方法GB/T2423.2-1989电工电子产品基本环境试验规程试验B:高温试验方法GB/T2423.9-1989电工电子产品基本环境试验规程试验Cb:设备用恒定湿热试验方法G13/T2682-1981电工成套装置中的指示灯和按钮

7、的颜色GB/T2887-1989计算站场地技术要求GB/T3047.2-1992高度进制为44.45二的面板、机架和机柜的基本尺寸系列GB/T3047.4-1986高度进制为44.45mm插箱、插件的基本尺寸系列GB4208-1993外壳防护等级(IP代码)GB/T4798.2-19%电工电子产品应用环境条件运输GI34884-1985绝缘导线的标记GB/T7261-1987继电器及继电保护装置的基本试验方法GB/T7267-198