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。
At both ends of conduit in non-explosion proof area, the bridging lines should welded or the earth wires should be connected with clamp.
接地极连接，用不锈钢带和穿线管，引入检查井的方位，由施工单位，视现场实际情况确定。
Grounding electrodes connection, with stainless steel belt and threading pipe, the introduction of inspection Wells, the construction unit of the azimuth, depending on the actual conditions.
YHX系列穿线盒是电缆穿管敷设时在套管连接处、电缆接头处、分支处必须采用的连接件。
YHX series threading box the necessary connecting piece at the junction of the casing, cable connector and branch when laying the cable.
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