earth clamp

基本解释

When used, the mop clamp does not damage the furniture or scratch the earth surface.
各部件均不露出布条束之外，使用时不碰伤家具或划伤地面。
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At both ends of conduit in non-explosion proof area, the bridging lines should welded or the earth wires should be connected with clamp.
非防爆区域内穿线管连接处两端，应焊接跨接线，或用接地线通过接地卡连接。
In case the welding machine cannot be placed close to the welding area, enough cable length for both, the welding cable as well as the earth clamp has to be provided.
如果焊机不能置于靠近焊接区，必须提供足够长度的焊接线以及接地夹。