保护金具主要用于架空电力线路的导线、避雷线的振动幅度。以及330KV以上线路和变电所绝缘子串的均压屏蔽等，如防振锤、间隔棒、均压屏蔽环......
产品型号字母的意义为：
M-母线 R-软导线 F-防护、封头 Y-预绞丝 D-导线
J-间隔、均压 Z-终端、阻尼 Q-球绞 G-钢绞线
防振锤、间隔棒线夹与导线连接时，应根据使用情况可在导线外缠铝包带。
Protective fitting are used to restrain vibrantion of conductor and ground wire fovehead transmission lines. or to grade nd t shield the insulator string of 330KV and above transmission lines and substation.For example.dampers.spaceers grading and hielding rings......
M-Bus-bar R- cable F-Protection,end cap Y-preformed armor rod D-conductor J-space,voltage Z-Damper terminal
Q-ball joints G-steel wireium tapes as installing dampers and spacers on to it.
The conductor may be wounld by aluminum tapes as intalling dampers and spacers on it.
