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电缆警示带的物理性能与探测

泉源:/ 宣布时间:日期:2023-02-25 0
电缆警示带的是由底膜与面膜、底膜与铝箔团结牢靠 ,并整体滚花成型。踪迹电缆警示带印有醒目的警示语 ,不掉色、不褪色。下面来相识下电缆警示带的物理性能与探测事项。
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.
电缆警示带的物理性能
Physical properties of cable warning tape
(1)踪迹电缆警示带每卷内无讨论。
(1) There is no joint in each roll of the cable warning tape.
(2)踪迹电缆警示带两层塑料薄膜的剥离强度应大于0.10N/mm(拉伸速率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)每卷踪迹电缆警示带应通电导通 ,电阻小于20Ω/100m(用欧姆表检测)。
(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)踪迹电缆警示带的延伸率≥25%。
(4) The elongation of the cable warning tape is ≥ 25%.
电缆警示带
电缆警示带的探测
Detection of cable warning tape
踪迹电缆警示带的探测常用的要领是电磁法。踪迹电缆警示带内夹带的金属箔 ,在电磁场作用下的感应电流会爆发二次场?稍诘孛嫔嫌锰讲庖瞧魈讲獾 ,以确定踪迹电缆警示带的位置。例如电磁法自动源法 ,信号强 ,定位、定深的精度高 ,不受邻近其他管道滋扰(被查踪迹电缆警示带需有露出点)。
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).
使用时发射机一端接被查踪迹带 ,另一端接地或接踪迹带另一端。探测仪通过探测踪迹带爆发的磁感应强度的转变 ,确定踪迹带的空间位置。
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.
别的埋设燃气管道的沿线应一连铺设警示带 ,警示带铺设前应将铺设面压实 ,并平整的铺设在管道的正上方 ,距管定的距离宜为0.3~0.5m ,但不得铺设于路基和路面内。更多使用的注重事项就来我们网站咨询吧!
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 Ask!

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