1 Prezentul standard se refer? la contact oarele ?i ruptoarele ?n aer destinate s? ?nchid? ?i s? deschid? circuitele electrice ?i, dac? s?nt echipate cu relee termice, s? asigure protec?ia circuitelor contra suprasarcinilor susceptibile de a se produce ?n
STAS 4479-1982 history
1982STAS 4479-1982 LOW- VOLTA GE CONTACTOK S AND CONTACT BREAKKRS Special technical requircments for quality