| 摘要 |
<p>The present invention relates to a method and a device for driving down an earth wire into the ground with an earthing bar (1), where the earth wire (2) is attached to the front end of the bar. The characteristic is that the bar is arranged in a supporting unit (4) consisting of several assembled movable telescopic cylinders (7-10), such that the supporting unit rests in vertical position with an upper end closure (12) against the upper end of the bar and with one of the end cylinders (7) of the supporting unit turned downwards against a base plate (5), which is contacted with the ground, by which the bar is guided within the supporting unit so that its front end with the attached earth wire will project below said lowest cylinder (7) of the supporting unit and below the base plate (5), and that the supporting unit is pressed together towards the base plate from above so that the earthing bar is driven through an opening (11) in the base plate down into the ground under the influence of a vertical force exerted on the mentioned end closure of the upper end of the bar, by which the bar draws the earth wire (2) with it below, through or beside the base plate.</p> |
