Zvidziviriro zveYuanky low voltage surge zvinodzivirira mitsetse yepamusoro yemagetsi mashoma, zvinhu zvinoshandiswa nevatengi, matransformer ekuparadzira uye mamwe masisitimu. Varistor yesimbi isina gap-oxide iri mu surge arrester inoisa miganhu yakaderera pa surges inokonzerwa ne airspace overvoltages uye switching transients, nokudaro ichidzivirira insulation yema network nemidziyo yevatengi. Varistor ine nguva pfupi yekupindura (kazhinji<100 ns) uye inogona kubata zvakachengeteka ma "high-current impulses" anosvika 100 kA, 4/10 μs. "Nominal discharge current" ye "arrester" i10 kA. "Metal-oxide varistor" yakavharirwa mu "polymer housing" yakasimba, inodzivirira mamiriro ekunze. Miedzo yakawanda yakasimbisa kugara kwenguva refu kwe "housing", kunyangwe kana paine kuchinja kwakanyanya kwekushisa uye kusvibiswa. "LV surge arresters" inoenderana nezvinodiwa zveClass II sezvakatsanangurwa neIEC 61643-1.