带电作业.电压检测器.第3部分:两极低压型

[中文适用范围]： 本部分 IEC 61243 适用于手持式双极电压探测器及其配件（鳄鱼夹和可拆卸导线），用于与电气系统的部件接触： - 用于交流电压不超过 1000 V，标称频率在 16 2/3 Hz 至 500 Hz 之间； - 和/或 - 用于直流电压不超过 1500 V。 注：本标准中定义的交流电压是指相电压或相地电压。 接触电极延伸部分不在此标准范围内。 本标准涵盖的电压探测器旨在干燥和潮湿条件下使用，包括室内和室外。不适用于雨天条件。 本标准涵盖的电压探测器不旨在连续运行。 本标准涵盖的电压探测器旨在海拔 2000 m 以下使用。 本标准还包括以下辅助功能（如有）的规定（见附录 B）： - 相指示； - 旋转磁场指示； - 连续性检查。 其他辅助功能不在此标准范围内。 本标准涵盖的电压探测器不被视为测量设备。测量设备的相关安全要求包含在 IEC 61010 系列中。 [外文原描述]： IEC 61243-3:2014 is applicable to hand-held two-pole voltage detectors with their accessories (crocodile clips and detachable leads) to be used in contact with parts of electrical systems for a.c. voltages not exceeding 1 000 V at nominal frequencies between 16 2/3 Hz and up to 500 Hz, and/or for d.c. voltages not exceeding 1 500 V. Contact electrode extensions are not covered by this standard. Voltage detectors covered by this standard are intended to be used under dry and humid conditions, both indoor and outdoor. They are not intended to be used under rain conditions. Voltage detectors covered by this standard are not intended to be used for continuous operation. Voltage detectors covered by this standard are intended to be used up to 2 000 m above sea level. This standard also includes provisions for the following supplementary functions when available: - phase indication; - rotating field indication; - and continuity check. Other supplementary functions are not covered by this standard. Voltage detectors covered by this standard are not considered as measuring devices. Relevant safety requirements for measuring devices are included in IEC 61010 series. This third edition cancels and replaces the second edition published in 2009. It is a technical revision which includes the following significant technical changes with respect to the previous edition: - requirement and test to manage interference voltages at power frequencies; - and informative annex on voltage detectors and the presence of interference voltages. The contents of the corrigendum of January 2015 and May 2015 have been included in this copy.