Buried trace line currently occupies a major position in domestic PE pipe engineering, and its stability is the highlight of the trace line. The following section will talk about the form and performance of the trace line.

1. Steel wire plastic film tracer wire is a kind of steel wire or other metal wire pressed with PE plastic film, which is often used in combination with warning tape. The diameter of steel wire is 0.5 mm? about.

Performance: The steel wire is the conductor, which is difficult to connect due to its small cross-sectional area. The resistance is large, and the detection distance is limited to only tens to tens of meters. It is easy to break in actual construction, and the effective electrical connectivity is easy to be damaged, which is difficult to meet the actual needs.

2. The copper or aluminum wire and cable are used as the trace wire of the electric wire, and the sectional area is usually 2.5-4 mm?.

Performance: Due to the use of wires or cables, the detection distance is far and the effect is good, but the cost is relatively expensive. The insulation layer on the outer surface of the wire is PVC, which is easy to age after being made of McGrady. Compared with the PE material, it is insufficient. The metal core of the wire is mostly made of copper or aluminum, and its tensile strength is limited. When it is used for conventional laying and trenchless laying, the fracture probability is high.

3. The special tracer wire is composed of special metal wire core (copper clad steel) and PE outer protective layer, with the sectional area of 205-7 mm?.

Performance: The tracer wire uses PE as the external protective layer, which is insulated, anti-corrosion, waterproof and anti-aging. The copper layer in the core layer properly enhances the conductivity and improves the electrical signal. The communication department effectively increases the strength of the line body. The conductivity is slightly poor, but the strength and mechanical properties are very good. The trace line has been applied in European and American countries for more than 20 years and has good economic effect. At present, the tracer wire is mostly used as the tracer wire of PE pipe in China.

Attention should be paid to the quality of the trace line when purchasing. At present, there is no clear standard, which requires attention when purchasing. Secondly, the feasibility of the trace line shall be tested in advance during the project construction, and it shall be tested again after the landfill to avoid rework.

The trace line is easy to be affected by the surrounding environment. Try to avoid being too close to the grounding body in the strong and weak current pipelines to prevent inaccurate testing. In order to ensure the construction quality, double track road can be used to ensure its safety and stability. Follow us http://webtest2.daoshangbao.cn Take you to know more and more details!