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电缆警示带的性能、敷设和探测

泉源:/ 宣布时间:日期:2022-08-08 0
电缆警示带的结构是由底膜与面膜、底膜与铝箔团结牢靠,并整体滚花成型 。电缆警示带印有醒目、性的警示语,不掉色、不褪色 。下面就来熟悉熟悉电缆警示带的性能、敷设和探测相关内容吧 。
The structure of the cable warning tape is composed of the bottom film and facial mask, the bottom film and aluminum foil, which are firmly combined and integrally knurled. The cable warning tape shall be printed with eye-catching and permanent warning words, which shall not fade. Let's learn about the performance, laying and detection of cable warning tape.
电缆警示带的物理性能
Physical performance of cable warning tape
(1)电缆警示带每卷内无讨论 。
(1) There is no joint in each roll of cable warning tape.
(2)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 peel strength of two layers of plastic film of cable warning tape shall be greater than 0.10n/mm (tensile speed: 25mm / min).
(3)每卷电缆警示带应通电导通,电阻小于20Ω/100m(用欧姆表检测) 。
(3) Each reel of cable warning tape shall be electrically conductive with a resistance less than 20 Ω / 100m (detected with an ohmmeter).
(4)电缆警示带的延伸率≥25% 。
(4) The elongation of cable warning tape shall be ≥ 25%.
电缆警示带的敷设
Laying of cable warning tape
(1)电缆警示带敷设在管顶上方300-500mm处(以包管施工挖出带时,危险不到管线),但不得敷设于路基或路面里 。
(1) The cable warning tape shall be laid at 300-500mm above the pipe top (to ensure that the pipeline will not be damaged during the construction of the excavated tape), but shall not be laid in the subgrade or pavement.
(2)直径不大于400mm的管道,可在上方敷设一条电缆警示带 ;大于400mm的管道,应在管道正上方平行敷设两条水平净距100-200mm的电缆警示带 。
(2) A cable warning tape can be laid above the pipe with a diameter of no more than 400mm; For pipes larger than 400mm, two cable warning tapes with a horizontal clear distance of 100-200mm shall be laid in parallel above the pipes.
电缆警示带
(3)敷设历程中,两条电缆警示带毗连处应搭接1米左右,搭接处将铝箔一侧的PE膜剥开,露出铝箔,使两条带的铝箔充分接触,并用塑料胶带将搭接部分整体包裹严实,包管粘接牢靠,通电后能导通
(3) During the laying process, the connection of two cable warning tapes shall be overlapped for about 1m. The PE film on one side of the aluminum foil shall be peeled off at the overlapped place to expose the aluminum foil, so that the aluminum foil of the two tapes can be fully contacted. The overlapped part shall be tightly wrapped with plastic tape to ensure that the bonding is firm and can be conducted after power on
(4)在PE管管端,若带没有引出地面,则应将带剥开50厘米长,让铝箔与大地充分接触,铝箔与大地形成回路,镌汰接触电阻,可以提高探测质量 。
(4) At the end of the PE pipe, if the tape is not led out to the ground, the tape shall be peeled 50 cm long to allow the aluminum foil to fully contact the ground. The aluminum foil and the ground form a loop to reduce the contact resistance and improve the detection quality.
(5)敷设历程中可设置信号源井,将带引出,留在井内1米,便于探测时用 。等等 。
(5) During the laying process, a signal source well can be set up to lead out the belt and leave it in the well for 1m for easy detection. wait.
电缆警示带的探测
Detection of cable warning tape
电缆警示带的探测常用的要领是电磁法 。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,以确定电缆警示带的位置 。
Electromagnetic method is commonly used to detect cable warning tape. The induced current of the metal foil contained in the cable warning tape under the action of the electromagnetic field will generate a secondary field. It can be detected on the ground with a detection instrument to determine the position of the cable warning tape.
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(被查电缆警示带需有露出点) 。
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 warning tape of the inspected cable needs to have an exposure point).
使用时发射机一端接被查带,另一端接地或接带另一端 。探测仪通过探测带爆发的磁感应强度的转变,确定带的空间位置 。
When in use, one end of the transmitter is connected to the checked tape, and the other end is grounded or connected to the other end of the tape. The detector determines the spatial position of the belt by detecting the change of the magnetic induction intensity generated by the belt.
电缆警示带的性能、敷设和探测相关内容我们就解说到这里了,若是您对此有什么问题要咨询,或者要采购警示带的话,就来我们网站多相识吧 。
This is all about the performance, laying and detection of cable warning tape. If you have any questions about this or want to purchase warning tape, please come to our website Learn more.

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