直流电阻电压比率计箱

[中文适用范围]： 指定分类系统；给出每个精度等级的允许误差；包括确定错误的条件。适用于输入电压高达 1.5 kV 且等级指数为 0.1 或更高的固定比率的伏比箱。 [外文原描述]： Applicable to d.c. resistive volt ratio boxes with fixed ratios having a ratio input voltage up to 1.5 kV and a class index of 0.1 or better, as well as to all equipment which is built-in or supplied by the manufacturer (or responsible supplier) as an essential part of the volt ratio box. Classification system. Permissible errors for each accuracy class. Conditions for determination of errors. Markings. Information supplied by the manufacturer.