The value of the capacity of capacitors given in table 5, can deviate from nominal at ±10 %. By inductance there is own inductance of the capacitor. The tangent of a corner of dielectric losses at f = 50 Hz is equal 0,002÷0,003. The design life is specified for a case of discharge of capacitors on loading with application of voltage in reverse polarity no more than 10 % and +20 0C. At a deviation of conditions of operation from given in the table the design life can be approximately calculated by the formula: N =N_{0}*K_{1}*K_{2}*K_{3}*K_{4},
where N_{0} - nominal resource; K_{1}, K_{2},
K_{3}, K_{4} - a longevity coefficients, which
determine with the aid of curves, are shown in the Fig. (
3 ), (
4 ), (
5 ), (
6 ).
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