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The difference between tracer wire and ordinary wire is that the color of tracer wire is generally eye-catching, while ordinary wire is lead aluminum color. Pipeline tracer is a product specially designed for finding and locating underground non pipeline lines. It effectively solves the problem that the pipeline detector cannot detect non pipeline pipelines, and can be widely used for the search and positioning of underground non pipeline pipelines such as pipelines, water supply pipelines, drainage pipelines, etc.
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After the laying of the tracer line detection pipeline, the pipeline detector shall be used to carry out the detectability test on the laid detectable tracer line to ensure the correct connection of the pipeline conductor, and the test results shall be recorded. Connect the pipeline of the tracer line to the transmitter input end of the pipe locator, and the grounding end of the transmitter should be as far away from the transmitter as possible. Use the grounding pile or grounding electrode for grounding to reduce the grounding resistance. Use the receiver to detect the received transmission signal. The displacement and buried depth of the pipeline can be calculated.
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In addition, the buried plastic pipe has the characteristics of non-conductive, non-magnetic and basic insulation when there is no pipe or liquid in the pipe. Pipeline detection and other methods are difficult to identify, and detection is a worldwide problem.
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In practical application, if the pipeline needs to be replaced, repaired or reconstructed, and if the pipeline cannot be detected and positioned (for example, buried PE gas pipe without pipeline tracking system, buried PE water supply and drainage pipe, etc.), the following methods can also be used to locate the buried plastic pipe: the construction drawings of the corresponding project should be checked to roughly determine the location, direction and depth of the buried pipe. Then use ultrasound to determine the position of the pipe. If the construction drawing is missing or the construction drawing standard is not clear, the acoustic positioning method can be directly used to determine the pipeline position.
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This method uses acoustic positioning equipment, based on the principle of acoustic detection, and consists of transmitting and receiving parts. The audio driver is connected with the exposed pipe fittings and pipes in the pipeline system detection well through the adapter, and applies the acoustic signal of specific combined frequency to them. Then, the hand-held receiving device receives the corresponding acoustic signal along the road, and combined with the comprehensive judgment of the acoustic signal strength fed back by the headset and the size of the digital display acoustic wave, the buried plastic pipe can be quickly located; Efficiency and accuracy are both good.
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For buried plastic pipelines without pipelines and liquid in the pipelines, the simple and convenient tracing method is still to install pipeline tracing lines when laying. Acoustic positioning increases the cost of labor and equipment, which is not conducive to maintenance and replacement. Therefore, buried PE gas pipe and buried PE water supply and drainage pipe of pipeline tracing system are still common methods.
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