, . . ( ), (. 6.10,). VDE0433, 60-2 , 30 90% 1,67:
(6.1)
' 6.10,, , << - .
. 6.10 , :
) (VDE 0433 60-2);
) ( 469-1)
:
1,2/50: =1,2 30%; =50 20%.;
( ) 10/700: =10 30%; =700 20%.
-1516.2 :
25050 ;
2500500 . .
6.10 . ( ) (.).
, 1,2/50 10/700, 60-2. 469-1. - , , , .
, . 6.10,, (. 6.11).
. 6.11
( , , . .) - R
>>
= 2,2R. (6.2)
~R(+ C0).
. ( , , ) , , . , , . , , (, ) = 8/20 (. 6.12) (. VDE 0846, . 11 [.]).
|
|
, 8/20 , 30% [.].
. 6.12 :
) (VDE 0432, . 3 60-2);
( 469-1);
) 8/20 (VDE 0843, . 5 (1993)]
, , 1,25:
(6.3)
(8.1) (, , 10% 30%).
' 1,25, . .
(6.4)
: 20% 20% ( 60-2),
20% 20% ( 469-1).
. 6.13 ( )
. 6.13. , R - , L/R-.
, (6.5)
, (6.6)
,
, (6.7)
(6.8)
(6.7) (6.8) - (, ), , , . [.].
(. 6.2).
6.2 801-5 ()
, ±10% | |
X | 0,5 |
, , , .