When installation, unlade the join copper bus bar, through the preformed long-square hole, fixing it on the main grounding bus bar.

安装时将互连铜排卸下，穿越柜间预留的长方孔，固定在相邻两柜的主接地铜排上。

Clean bus bar with cleansing and dry soft bibric, check insulation damage or no. According to 7.2 section state, clean lipa and feculence adhere to.

用清洁、干燥的软布擦拭母线，检查绝缘是否有损伤。按7.2节所述，清除油脂和粘附的污物。