1、 60793-1-46 2014 1-4 6 . IEC 60793-1-46:2001 Optical fibres Part 1-46: Measurement methods and test procedures Monitoring of changes in optical transmittance (IDT) 2015 60793-1-46 2014 II 1 - -, - - ( ) - , 4 2 46 3 - 18 2014 . 1119- 4 60793-1-46 (2001) . 1-46. . - (IEC 60793-1-46:2001 Optical fibre
2、s Part 1-46: Measurement methods and test procedures Monitoring of changes in optical transmittance). - , - A 5 6 , 4, - . () - 1.02012 ( 8). ( 1 ) , -. () - . , (gost.ru) , 2015 -, - 60793-1-462014 III 1 . 1 2 . 1 3 1 4 2 5 . 2 6 . 2 7 . 2 8 . 2 9 3 () , . 4 () , 7 () 8 60793-1-462014 1 1-46 . Opti
3、cal fibres. Part 1-46. Measurement methods and test procedures. Monitoring of changes in optical transmittance 2016 01 01 1 (), . - , - , . - , -, : - : ; - : - . : - : ; - : . 1 8, , - . 2 ( -, ): 60793-1-40 . 1-40. . (IEC 60793-1-40, Optical fibres Part 1-40: Measurement methods and test procedure
4、s Attenuation) 3 . 60793-1-46 2014 2 4 - , . 5 5.1 , - . 5.2 , . 5.3 , - . 5.4 , , , , , .1 (. ). . . 6 . 7 . 8 8.1 , : - ; - ; - ; - ; - ; - D; = 1,2,3 ., , -, . 8.2 , : - ; - ( ); - ; - ; - ; - . 60793-1-46 2014 3 9 : - , ; - ; - , ; - . 60793-1-46 2014 4 () , .1 A.1.1 - , - . .1 - . , - , , . . A
5、.1 .2 - , , , , . , -, ( 60793-1-40). 60793-1-46 2014 5 A.2 A.1.2 , , - . - . A.1.3 , . , - . , . A.1.4 - - . . - . , , .1, , . .1.5 - 60793-1-40, . , . .2 P0t - , , .1, - P0r . , , - , Pnt (n=1,2,3,) , , .1, Pnr . - , . , .1, - . - ( ) . 60793-1-46 2014 6 .3 , - 1, 0010 lg r ntn t nrPPD , (.1) , 2 010lg ntn tPD P, (.2) Dn , ; P0t , ; P0r , ; Pnt , ; Pnr , . 60793-1-46 2014 7 () , .1 . 60793-1-40, . .2 .2.1 . .2.2 , , - . .2.3 , -. .2.4 . .2.5 : - PA0 PB0 A B; - PAn PBn A B. B.2.6 , . .3 - Dn= (PA0 PB0) (PAn PBn). (B.1) .
