電纜警示帶的是由底膜與面膜、底膜與鋁箔結(jié)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(yǔ)，不掉色、不褪色。下面來(lái)了解下電纜警示帶的物理性能與探測(cè)事項(xiàng)。

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(nèi)無(wú)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(qiáng)度應(yīng)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(yīng)通電導(dǎo)通，電阻小于20Ω/100m（用歐姆表檢測(cè)）。

(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(cè)

Detection of cable warning tape

蹤跡電纜警示帶的探測(cè)常用的方法是電磁法。蹤跡電纜警示帶內(nèi)夾帶的金屬箔，在電磁場(chǎng)作用下的感應(yīng)電流會(huì)產(chǎn)生二次場(chǎng)?？稍诘孛嫔嫌锰綔y(cè)儀器探測(cè)到，以確定蹤跡電纜警示帶的位置。例如電磁法主動(dòng)源法，信號(hào)強(qiáng)，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(diǎn)）。

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(shí)發(fā)射機(jī)一端接被查蹤跡帶，另一端接地或接蹤跡帶另一端。探測(cè)儀通過(guò)探測(cè)蹤跡帶產(chǎn)生的磁感應(yīng)強(qiáng)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(shè)燃?xì)夤艿赖难鼐€應(yīng)連續(xù)鋪設(shè)警示帶，警示帶鋪設(shè)前應(yīng)將鋪設(shè)面壓實(shí)，并平整的鋪設(shè)在管道的正上方，距管定的距離宜為0.3~0.5m，但不得鋪設(shè)于路基和路面內(nèi)。更多使用的注意事項(xiàng)就來(lái)我們網(wǎng)站http://tianyals.cn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://tianyals.cn Ask!