前言
1 范围····················································································································································································································1
2 引用标准·········································································································································································································1
3 术语和符号····································································································································································································1
4 分类和基本规格··························································································································································································4
5 要求····················································································································································································································6
6 试验方法·······································································································································································································13
7 检验规则·······································································································································································································18
8 标志、包装和贮运··················································································································································································21
前 言
本标准是对 ZB K33 005—89《电子式时间继电器》的修订。
本标准与 ZB K33 005—89 的技术内容基本一致，主要差异是：
1. 标准的技术要求按 GB/T 14048.1—1993《低压开关设备和控制设备 总则》和 GB
14048.5—1993《低压开关设备和控制设备 控制电路电器和开关元件 第一部分：机电式
控制电路电器》进行修改，主要对非正常条件下的负载特性所要求的各项性能作了补充。
2. 对电子式时间继电器产品的延时功能的要求作了部分修改：放宽了对某些误差指标的容限；
取消了延时稳定性误差的要求；对于综合电压和温度两个影响量的综合误差，由原来的必
要项目改为有条件的选择项目。这些改动将有利于产品制造商在市场经济中根据用户的实
际需要和制造成本选定自己的产品性能。
本标准自实施之日起代替 ZB K33 005—89。
本标准由成都机床电器研究所提出并归口。
本标准起草单位：无锡市机床电器厂。
本标准主要起草人：薛政川。
本标准于 1989 年首次发布。
