.
;
. 45KW - 23.
. .
(8.2) = F*a[2.5(Pn+70)].
2, . .
' 2 .
(>50KW) .
45 KW
= 1,1*1,2[2,5(45+70)]= 379,5 cm^2

759cm^2.
.
.