去年我院引进了八台大型医疗仪器，加上老机房调整装修，重新制作了几根地线，并借此做些探索，取得了一些有益规律，达到满意效果，现介绍如下：一、接地方法1．接地电极：选长度L＝1．5m的50×50mm镀锌角钢或DN50的镀锌水管数根。2．埋地电极：在土质优良的地方抛开地面0．5m Last year, our hospital introduced eight large-scale medical instruments, coupled with the adjustment and decoration of the old machine room, and re-created a few ground lines, and to do some exploration and achieved some beneficial laws to achieve satisfactory results, are introduced as follows: First, grounded method 1. Grounding electrode: Select a 50×50mm galvanized angle steel with a length of L=1.5m or several galvanized water pipes with DN50. 2. Buried electrode: Put aside ground 0.5m in good place