A test instrument for pull-back force of power cable is designed

aiming at test of the pull-back force of cable laying when power pipeline is finished

and it is composed of mechanical structure

data processing circuit and upper PC software. The instrument is dragged with the cable from the pipe head to end to collect pull-back force during the whole construction process and then the collected data is storage. After the completion of the construction

upper PC software read out the stored data of the instrument for further analysis

processing and display. After the instrument is completed

a large number of indoor and outdoor experiments are done and the experimental results show that the instrument can meet the demands of actual construction testing.