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　　鎂合金犧牲陽極具有高驅動(dong)電(dian)(dian)壓、低電(dian)(dian)流效(xiao)(xiao)率(lv)、造(zao)價(jia)高。根據形(xing)狀以及電(dian)(dian)極(ji)電(dian)(dian)位(wei)(wei)(wei)（開(kai)路電(dian)(dian)位(wei)(wei)(wei)）的不同，鎂(mei)陽極(ji)可用于(yu)電(dian)(dian)阻(zu)率(lv)在15歐姆(mu)·米(mi)到(dao)(dao)150歐姆(mu)·米(mi)的土(tu)壤或淡水環(huan)境。一般不應(ying)用于(yu)土(tu)壤電(dian)(dian)阻(zu)率(lv)小于(yu)10歐姆(mu)·米(mi)環(huan)境。高電(dian)(dian)位(wei)(wei)(wei)鎂(mei)陽極(ji)的電(dian)(dian)位(wei)(wei)(wei)為(wei)-1.75VCSE，驅動(dong)電(dian)(dian)壓0.85V；低電(dian)(dian)位(wei)(wei)(wei)鎂(mei)陽極(ji)的電(dian)(dian)位(wei)(wei)(wei)為(wei)-1.55VCSE，驅動(dong)電(dian)(dian)壓0.7V。使用溫度可以達到(dao)(dao)100℃。當(dang)犧(xi)牲陽極(ji)剩余量為(wei)重(zhong)量的15%，即認為(wei)陽極(ji)失效(xiao)(xiao)，所以，陽極(ji)的使用率(lv)一般取85%。