Due to its special material, non-conductive, non magnetic and low density, PE tubes cannot be tracked by common metal detectors. How to accurately locate the underground direction of PE pipe? The use of buried trace line is a good choice!

The principle of the trace line system is mainly to locate the position of the trace line and speculate the position of the PE pipe by relying on the metal line laid in parallel pipes and the magnetic field change caused by the current passing through the metal line. The advantages of this system are: the product is relatively mature, there is a lot of experience in domestic use, the construction method is simple, the workers are easy to operate, the detection gap with the original copper steel pipe system tracing method is small, and it is easy to integrate with the existing system.

Form and performance of 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 excellent. 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.

At present, the tracer wire occupies a major position in domestic PE pipe projects. Its stability is the highlight of the tracer wire. You should pay attention to many matters in the use of the tracer wire. Please visit our website http://webtest2.daoshangbao.cn Consult!