①由于铜包钢和铜包铝的包装有牢靠的转动轴承 ，陪同PE燃气管道敷设施工时 ，相关于铜芯电线较量简朴省力。
① Due to the fixed rolling bearings in the packaging of copper clad steel and copper clad aluminum, the installation of PE gas pipelines is relatively simple and labor-saving compared to copper core wires.
②施工单位在对铜芯电线示踪线举行毗连时 ，使用一样平常电工胶布纠葛毗连 ，有些甚接纳透明胶带举行纠葛毗连 ，经现场实践磨练 ，此种毗连处理方法毗连不牢靠 ，强度不高 ，且无法起到有用的防水绝缘作用 ，经由一段时间地下水渗入会造成此处信号损失 ，影响日后PE燃气管道管位检测及管网运行治理事情。
② The construction unit uses general electrical tape to wrap and connect copper core wire tracing wires, and some even use transparent tape to wrap and connect. After on-site practice, it has been verified that this connection method is not firm, has low strength, and cannot effectively prevent water insulation. After a period of time, groundwater infiltration can cause signal loss here, This will affect the detection of PE gas pipeline location and the management of pipeline operation in the future.
铜包钢有专用讨论器 ，例如旋紧讨论器、三通讨论器 ，且毗连强度高 ，只要施工职员将讨论随处理及格 ，就有很好的防水绝缘效果 ，有利于延伸示踪线的使用寿命。只管铜包铝也有专用讨论器 ，可是由于铜与铝的化学活性差别较大 ，一旦讨论防腐处理欠好 ，被土壤中的液体侵湿 ，会形成原电池 ，进而加速铜包铝示踪线爆发电化学侵蚀 ，一样平常1～2a内就会完全侵蚀断掉 ，从而失去示踪作用。
Copper clad steel has special connectors, such as screw connectors and tee connectors, and the connection strength is high. As long as the construction personnel handle the joints properly, it has good waterproof and insulation effects, which is conducive to extending the service life of the tracer wire. Although copper coated aluminum also has specialized connectors, due to the significant difference in chemical activity between copper and aluminum, once the anti-corrosion treatment of the connector is not good and it is wetted by liquid in the soil, it will form a primary battery, which will accelerate the electrochemical corrosion of the copper coated aluminum tracer line. Generally, it will completely corrode and break off within 1-2 years, thus losing its tracing effect.
③铜芯电线的防腐�；げ阄狿VC质料 ，其防水、防腐功效较好 ，但PVC材质容易老化 ，使示踪线使用寿命缩短；铜包钢与铜包铝的外防腐层为聚乙烯材质 ，即与PE管为统一材质 ，在具备了较好的防水性、防腐性的条件下 ，包管了与一起敷设的PE管道具有相同的使用寿命。
③ The anti-corrosion protection layer of copper core wires is made of PVC material, which has good waterproof and anti-corrosion functions. However, the PVC material is prone to aging, which shortens the service life of the tracer wire; The outer anti-corrosion layer of copper clad steel and copper clad aluminum is made of polyethylene material, which is the same material as PE pipes. With good waterproof and anti-corrosion properties, it ensures the same service life as PE pipes laid together.
④理论上示踪线只要能够连通导电即可 ，但现实的燃气工程施工中 ，选择示踪线要思量到需要有一定的抗拉强度 ，若是示踪线强度不敷 ，往往会在管道回填土或地面有下沉时被拉断而失去作用。在施工的历程中 ，难免会泛起示踪线被拉断的征象 ，因此 ，选择示踪线时不但应思量探测信号的强弱 ，也要思量示踪线自身段质的强度 ，以镌汰施工中泛起拉断问题。
④ In theory, as long as the tracer line can be connected and conductive, but in actual gas engineering construction, the selection of the tracer line should consider the need for a certain tensile strength. If the strength of the tracer line is not enough, it will often be pulled off and lose its function when the pipeline is backfilled or the ground sinks. During the construction process, it is inevitable that the tracer line will be pulled off. Therefore, when selecting the tracer line, not only should the strength of the detection signal be considered, but also the strength of the material of the tracer line itself should be considered to reduce the problem of pulling off during construction.
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