Due to the non conductivity and non magnetism of the PE pipe, it is impossible to track the PE pipe, which brings inconvenience to future pipeline maintenance. Therefore, tracer wire also appear. The commonly used tracer wire in the current market include copper clad steel tracer wire, thin film steel wire pressed tracer wire, and wire tracer wire.

1, The role of tracer wire

The "tracer wire" is laid together with the PE pipe; Generally, metal wire cores are used to apply signals to the "metal wire" through detection equipment, and the detection receiver receives the signal to find the accurate position of the tracer wire, that is, to synchronously track the specific position of the PE gas pipeline; To facilitate the renovation and maintenance of PE pipelines.

2, Development of Tracer wire

The development of tracer wire has undergone four improvements:

1. Tracer wire: It is composed of a matrix of aluminum foil and plastic film, with aluminum foil mainly used for signal transmission and the matrix being fixed aluminum foil. The disadvantage of this tracer wire is that the strength of aluminum foil is very low, and even during production and transportation, it is easy to break, and the auxiliary equipment is easily damaged. At the same time, the resistance of aluminum foil is very high, and the effective detection distance and depth are limited.

2. The second generation tracer wire is made by pressing steel wire and plastic film. The tracer wire is made of steel wire as the conductor, with high resistance and limited detection distance, making it difficult to meet practical needs.

3. The third generation tracer wire is composed of a copper clad steel metal wire core and a PE outer protective layer, with a linear appearance. The tracer wire has high resistance and poor elongation, making it difficult to meet the national standard requirements for buried cables. The detection distance is only 500 meters.

4. The fourth generation PE composite copper clad aluminum alloy wire is a national patented new type of wire developed from copper core wire and copper clad steel wire. It is composed of copper clad aluminum alloy and PE outer protective layer, with a linear appearance, retaining both the low resistance of the copper core wire and the longevity of the PE100. The detection distance is 750 meters in one direction! 1500 meters in both directions! Taking the Hx14-2 of Zhongshan Haixun as an example!