, - 2,5 . 800-1000, -, , . ( 40 ) - , , f=780 720.
2.1 - , , -. :
- 1 , - l=40 ;
- 2 ( , ) , 1 ;
- 3 , -.
. 2.1 -
1, 2, 3 (L1,L2 L3 ) , 2.1. (6, 9 12 ). - , (), , 1.5 ;
:
- (f) f , ; ( , f: 580, 720, 780, 580 ..);
- (f) , , f f. , , : 580/8; 480/12; 780/8; 420/12; 720/8; , 580/12; 480/8; 780/12; 420/8; 720/12 ;
- -, , , . 5-6 . ;
|
|
2.1
L () | f=580 | f=720 | f=780 | f=420 480 | f=580, 720 780 | |||
L1 () | L2 () | L1() | L2() | L1() | L2() | L3 () | L3 () | |
6,0 | ||||||||
6,0-9,0 | ||||||||
9,0-12,0 | - | - |
- -, , , , , 1. 1, 2.1, 1,5 .
5 2 800 3 1.
2.2 - L≤12 . 3 6 L1 2.1, 4 5 L2, 1, 2 7 - L3.
. 2.2
12