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现场暂设施工照明常常是一把闸刀控制十多盏灯,而且大都使用螺丝灯口。这种灯口的舌簧容易触碰螺口圈,造成短路,烧断保险丝,而且短路点不容易查找。所以,越是现场等着用灯,电工越是难于一下子修理好。这时可以采用下面的方法,能比较快地找到短路点,排除故障,见图1。具体做法是,将保险丝两端(图1中 A、B)串接入—个灯泡 G(最好在200瓦以上,以便电流表指示),合闸,灯泡 G 亮,这时把钳
On-site temporary facilities lighting is often a knife to control more than a dozen lights, and most of them use screw lights. This kind of lamp’s tongue easily touches the screw ring, causing a short circuit, blowing the fuse, and the short circuit point is not easy to find. Therefore, the more you wait for the lights on the spot, the more difficult it is for an electrician to repair it. At this time, the following method can be used, the short-circuit point can be found relatively quickly, troubleshooting, see Figure 1. Specifically, connect the two ends of the fuse (A, B in Figure 1) to a bulb G (preferably over 200 watts for the indication of the ammeter), switch on, and the bulb G is on.