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在电网纵横交错的地区,由于钻机的井架高于高压电线,在野外施工中稍不注意就有触电的危险。有时在高压输电线附近钻井、放炮,泥浆冲到高压线上也容易出事故。为了防止触电,我们制成了高压电报警器。该仪器安装在钻机车上,操作简便,并利用汽车电瓶做仪器的电源。因此,工作比较可靠。当钻机距高压输电线20余米时,报警器就能自动地发出警报。现将该仪器的性能、工作原理简要介绍如下。
In criss-cross regions of the power grid, as the derrick of the rig is higher than the high-voltage power lines, there is a danger of electric shock when the field construction is slightly neglected. Sometimes near the high-voltage transmission line drilling, blasting, mud rushed to the high-voltage line is also easy to accident. In order to prevent electric shock, we made a high-voltage electric alarm. The instrument is installed in the drilling machine, easy to operate, and the use of car battery power supply equipment. Therefore, the work is more reliable. When the drilling rig is more than 20 meters away from the high-voltage transmission line, the alarm can automatically give an alarm. Now the instrument performance, working principle briefly described below.