由于pe管不导电，不导磁，无法对pe管举行追踪，给日后的管道维修带来未便，因此示踪线也随之泛起 。现在市场上常用的示踪线有：铜包钢材质示踪线，薄膜钢丝压制示踪线，电线示踪线 。
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 lines also appear. The commonly used tracing wires in the current market include copper clad steel tracing wires, thin film steel wire pressed tracing wires, and wire tracing wires.
一、示踪线的作用
1、 The role of tracer lines
“示踪线”同pe管一起铺设；一样平常会接纳金属线芯，通过探测装备给“金属线”施加信号，由探测吸收机吸收信号，从而找到示踪线的准确位置，即同步追踪到pe燃气管道的详细位置；以便于对pe管道举行刷新及维修 。
The "tracer line" 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 line, that is, to synchronously track the specific position of the PE gas pipeline; To facilitate the renovation and maintenance of PE pipelines.
二、示踪线的生长
2、 Development of Tracer Lines
示踪线的生长经由四次改良：
The development of tracer lines has undergone four improvements:
1、代示踪线：是由铝箔和塑料薄膜的母体组成，铝箔主要是传输信号，母体是牢靠铝箔 。这种示踪线弱点：铝箔强度很是低，纵然在生产，运输历程中也很容易断裂，辅设易损伤，同时铝箔的电阻很是大，有用探测距离和深度有限 。
1. Tracer line: 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 line 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、第二代示踪线：是由钢丝和塑料薄膜压制而成，该示踪线由钢丝为导体，电阻大，探测距离有限，难以知足现实需要 。
2. The second generation tracer line is made by pressing steel wire and plastic film. The tracer line is made of steel wire as the conductor, with high resistance and limited detection distance, making it difficult to meet practical needs.
3、第三代示踪线：是由铜包钢金属线芯和pe外�；げ阕槌�，外观成线状 。该示踪线电阻高，伸长率差，难以知足《埋地电缆》规范要求，探测距离仅为500米 。
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 line 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、第四代pe复合铜包铝合金线，是由铜芯线和铜包钢线生长而来的新型线材，由铜包铝合金和pe外�；げ阕槌�，外观成线状，既保存了铜芯线的低电阻，又保存了pe100的长寿性，可探测距离为单向750米！双向1500米！以中山海讯的hx14-2为例！
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!
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