電纜警示帶的是由底膜與面膜、底膜與鋁箔結合牢固，并整體滾花成型。蹤跡電纜警示帶印有醒目的警示語，不掉色、不褪色。下面來了解下電纜警示帶的物理性能與探測事項。

The cable warning tape is firmly combined by the bottom film and facial mask, and the bottom film and aluminum foil, and is knurled as a whole. The track cable warning tape is printed with striking warning words, which will not fade or fade. Now let's understand the physical properties and detection items of the cable warning tape.

電纜警示帶的物理性能

Physical properties of cable warning tape

（1）蹤跡電纜警示帶每卷內無接頭。

(1) There is no joint in each roll of the cable warning tape.

（2）蹤跡電纜警示帶兩層塑料薄膜的剝離強度應大于0.10N/mm（拉伸速度25mm/min）。

(2) The peeling strength of the two layers of plastic film of the track cable warning tape shall be greater than 0.10N/mm (tensile speed 25mm/min).

（3）每卷蹤跡電纜警示帶應通電導通，電阻小于20Ω/100m（用歐姆表檢測）。

(3) Each roll of track cable warning tape shall be powered on and the resistance shall be less than 20 Ω/100m (detected by ohmmeter).

（4）蹤跡電纜警示帶的延伸率≥25％。

(4) The elongation of the cable warning tape is ≥ 25%.

電纜警示帶的探測

Detection of cable warning tape

蹤跡電纜警示帶的探測常用的方法是電磁法。蹤跡電纜警示帶內夾帶的金屬箔，在電磁場作用下的感應電流會產生二次場。可在地面上用探測儀器探測到，以確定蹤跡電纜警示帶的位置。例如電磁法主動源法，信號強，定位、定深的精度高，不受臨近其他管道干擾（被查蹤跡電纜警示帶需有露出點）。

The common method for detecting the cable warning tape is electromagnetic method. The induced current of the metal foil carried in the warning belt of the trace cable under the action of the electromagnetic field will produce a secondary field. It can be detected on the ground with a detection instrument to determine the location of the cable warning tape. For example, the active source method of electromagnetic method has strong signal, high accuracy of positioning and depth determination, and is not interfered by other nearby pipelines (the detected cable warning tape needs to be exposed).

使用時發射機一端接被查蹤跡帶，另一端接地或接蹤跡帶另一端。探測儀通過探測蹤跡帶產生的磁感應強度的變化，確定蹤跡帶的空間位置。

When in use, one end of the transmitter is connected to the detected track band, and the other end is grounded or connected to the other end of the track band. The detector determines the spatial position of the track belt by detecting the change of magnetic induction intensity generated by the track belt.

此外埋設燃氣管道的沿線應連續鋪設警示帶，警示帶鋪設前應將鋪設面壓實，并平整的鋪設在管道的正上方，距管定的距離宜為0.3~0.5m，但不得鋪設于路基和路面內。更多使用的注意事項就來我們網站http://www.scnu-graduate.com咨詢吧！

In addition, warning tapes shall be laid continuously along the buried gas pipeline. Before laying the warning tapes, the laying surface shall be compacted and laid flat above the pipeline. The distance from the pipe location should be 0.3~0.5m, but it shall not be laid in the subgrade and pavement. Please visit our website for more precautions http://www.scnu-graduate.com Ask!