弹簧垫圈安装在螺母下面，与其配合，用专用板手将螺母旋紧到规定的标准力矩后，螺母可起到防松作用。目前，各地都在紧张加快电网建设和改造，在瓷瓶等部件安装时，务必安装弹簧垫圈，以确保电网建设和改造的质量，工程质量的优劣，直接影响着线路的安全运行。不装弹簧垫... Spring washer installed under the nut, with its cooperation, with a special wrench to tighten the nut to the required standard torque, the nut can play a role in anti-loose. At present, all localities are tightening up the power grid construction and transformation. When installing porcelain vases and other components, spring washers must be installed to ensure the quality of power grid construction and renovation as well as the quality of the project, which directly affects the safe operation of the line. Not installed spring pad ...