The utility model relates to a tester which can correctly measure the anti-pulling of cable, line elongation and cable clamping holding force.
本实用新型是一种可以对电缆抗拉、线伸长率和电缆卡握裹力都正确测量的测试仪。
2
Finally, a practical calculation example of clamping the voltage of low voltage power line under the surge and effusion surge current by metal oxide varistor is given.