電(dian)線電(dian)纜曲(qu)(qu)撓試(shi)驗機取試(shi)件(jian)(jian)約5M長,中(zhong)段撓于規定直徑(jing)之(zhi)兩個(ge)圓輪上,試(shi)件(jian)(jian)兩端施加(jia)荷重,并接通電(dian)流,然后以0.33m/sec之(zhi)速度,1M之(zhi)行程,移動圓輪,使試(shi)件(jian)(jian)往復(fu)彎曲(qu)(qu)拉伸。