带电作业.伸缩式带电作业杆和可伸缩测量尺

[中文适用范围]： 涵盖用于在交流或直流电气装置上进行带电作业的伸缩杆和伸缩测量杆，交流电压为 1 000 V 及以上，直流电压为 1 500 V 及以上。伸缩杆设计用于接受符合以下要求的附件： [外文原描述]： Covers telescopic sticks and telescopic measuring sticks to be used for live working on a.c. or d.c. electrical installations at 1 000 V and above for a.c. and 1 500 V and above for d.c. The telescopic sticks are designed to accept attachments that meet appropriate live working standards and, together with these attachments, may be used to perform mechanical work on live parts at a distance. Telescopic sticks are also designed to accept diagnostic devices that meet appropriate live working standards and are used to make the diagnostic devices reach parts of an installation to be tested. Telescopic measuring sticks, or tele-scopic sticks equipped with graduations, are used to measure distances to or between live parts. The tools (telescopic sticks and telescopic measuring sticks) covered by this standard are for use under dry conditions but could also be used under very humid conditions, using appropriate working procedures.