, , . , , . , . -322-68 , . , , 400 , . , 20-25 "! ". , , 150 .
, , , , , .
, , , . 7.1.
7.1. | |
() | () |
1000 | 300 |
6000 | 400 |
8000 | 450 |
8000 | 500 |
, , . . , 15-20% .
, . | , . :
- ;
|
|
- , ;
- , , ;
- , , , , ;
- , ( );
- ;
- - ;
- 45.
:
- :
- , () .
:
)
= / ,
- ; - , ( ), (. . 7.1).
)
= / + / 1,
- , (
= mN,
m=0,2-0,15, N - ); 1 - , , . 7.1.
) ,
= / + / 1 + / 2 + ,
- ; 2 - () , 1260 . () 3-4 ; - (, , ); .
, :
- , 0,75 ;
- ;
- , 400 , , 400 , ;
|
|
- , 35 , 1200X2 600X2;
- , , 400 , 400 .
- , . , . . .
. 7.4. -51 |
.
1. 10 000 . -51 , , (. 7.4).
1. A1 -51-09, 51-10 5141. 500 . .
- =/=500/300 =1,6≈2 , =300, 1000 (. . 7.1). , A1 .
, 1200X2.
2. 2 1. 1500 , : 51-09 - 500X2, 51-10 - 500X2, 51-11-500X2, 1500X2. .
- =/=1500/400=3,75≈4 (=400, 1000 (. . 7.1)).
3. 2 51-01. 500X2: = 500/300= 1,6≈2 .
4. 3 2. 4+2=6 .
5. 4 3. 2500X2: = 2500/400=6,2≈7 .
6. 5 A4. 3000X2: =3000/400=7,5≈8 .
7. 6 5. 3600/400=9 .
8. -51 6. 4300X2: =4300/400=10,7, 11 .
.
, , . ( ) .
. 7.5. |
1:2000 - . (. 7.5) . - . 1:500.