sageduse väärtus, mille suhtes on fikseeritud arvesti olulised omadused, value of the frequency in according with which the relevant performance of the meter is fixed, sageduse väärtus, mille kohaselt arvesti asjakohane toimivus on kindlaks määratud, value of the frequency in accordance with which the relevant performance of a meter is fixed, value of the frequency of the supply voltage in according with which the relevant performance of the tariff and load controll equipment is fixed