YVF/Y2VF?б??綯????о?????綯???Y/Y2?????????????г?????????Χ5~~100Hz 3~~100Hz
??е綯ü???????г???????????? YVF?УIP54??綯???繤??IEC721????Y/Y2????????
YVF/Y2VF?б???????Ч???Ч????Χ?????????ν???????????????????30~60%,?????Ч档