) .
i =S/(h*(A+B))
S , ;
, ;
h , .
i = 45/(2,5*(10+2,7)) = 1,24
i =1,24 0,5; 0,3; 0,1 46% 0,46.
, 75
= ,
- , , ;
;
S , ;
η ( );
z .
= 1,5, z 1,15 .
= (100*1,5*45*1,1)/0,46 = 16141
2 ,
= /n
= 16141/16 = 1009
, 500, 220 8100. .
= (*)/
= (100*1520)/1009 = 150
) .
. |
. |
. 270116. 00. 00. |
:
45*13,4 = 603
603/8 = 75
8*80= 640 .
= (*)/
= (100*640)/603 = 106 .
. |
. |
. 270116. 00. 00. |
, , , 2 .
.
. 1/3 . , 10, , l, 1/3l
|
|
L+1/3L+1/3L = 10, 5L/3 = 10
L = (4*3)/11 = 1,09
, 1,09, 1,09/3 = 0,36.
2.
7 - .
. |
. |
. 270116. 00. 00. |
* = 10*4,5
75*75 L=3.
r = 0,3*p*..;
r = 0,3*300*1,7 = 153 .
R2 = 30 .
-
N I.. = r / R2;
N I. = 153/ 30 = 5,1 N I.. = 6
-
N . = N I. / ;
N. = 6 / 0,62 = 9,7 N. = 10
( 8), .
1 , :
L = (+2)*2 + (+2)*2;
L = (10+2)*2 + (4,5+2)*2 = 36
. , .
N. = 10,
= I / -1;
= 6,5 / 2 = 3,25
= A I / n-1;
= 12 / 3 = 4,
- , ;
- , ;
- ;
- .
8
. |
. |
. 270116. 00. 00. |
(/L) = 0,5*((3,25+4)/3) = 1,2
= 0,55, = 0,34
R = (0,4/(L*))**..*lg((2*L 2)/(*t));
R = (0,4/(42*0,34))*300*1,7*lg((2*42 2)/(40*10 -3*0,7)) =72,88
R = r / (N*n);
R = 153/(10*0,55) = 28 .
:
R.. = (R * R) / (R + R);
R.. = (28*72,88)/(28+72,88) = 20,24 ;
R..(20,24) < R(30), .