KS C IEC 62397-2012 Nuclear power plants－Instrumentation and control important to safety－Resistance temperature detectors《核电站 安全测量控制 电阻温度检出器》.pdf

1、 KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS KS C IEC 62397 KS C IEC 62397:2012 2012 12 12 http:/www.kats.go.krKS C IEC 62397:2012 : ( ) ( ) () ( ) : () () ( ) () () () ( ) () () : (http:/www.standard.go.kr) ： ：2012 12 12 2012-0698 ： ：() ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS C IEC 62397:2

2、012 i ii . iii 1 1 2 1 3 .1 4 3 4.1 .3 4.2 .3 4.3 .3 4.4 .4 4.5 7 4.6 ( ) .7 4.7 RTD .8 4.8 .11 4.9 11 5 .12 5.1 .12 5.2 .12 5.3 .12 5.4 12 5.5 14 6 15 16 1 RTD .5 2 RTD( I) .5 3 RTD( II) 5 4 RTD( II) .6 KS C IEC 62397:2012 ii . . , , . , , . KS C IEC 62397:2012 iii 2007 1 IEC 62397, Nuclear power p

3、lants Instrumentation and control important to safety Resistance temperature detectors . KS C IEC 62397:2012 Nuclear power plants Instrumentation and control important to safety Resistance temperature detectors 1 (RTD) . RTD , , , , , . “ (direct-immersion)” “ (thermowell-mounted)” RTD . RTD . RTD ,

4、 . RTD , , RTD 1). RTD MI(mineral-insulated) , . RTD MI . RTD , , , . 2 . . ( ) . KS C IEC 60780, KS C IEC 60980, KS C IEC 61224, 3 . 1) RTD . RTD . KS C IEC 62397:2012 2 3.1 (accuracy of measurement) IEV 394 40 35 3.2 (calibration) , , IEV 394 40 43 3.3 (drift) , KS C IEC 62385, 3.7 3.4 (performanc

5、e monitoring) , KS C IEC 62385, 3.13 3.5 (Resistance Temperature Detector, RTD) , . . (thermowell) . 1 . , , . RTD , . 2 “ ” , RTD . . . 3.6 (response time) ( 90 %) 3.7 (self-heating error) . KS C IEC 62397:2012 3 3.8 (thermowell) RTD, . . KS C IEC 62385, 3.19 3.9 (time constant) (first order) , 63.

6、2 % “ ” . (higher order) “ ” . 4 4.1 RTD . , . 4.2 RTD . 510 3 . RTD . , RTD . 4.3 RTD , , . , . , . 4.3.1 , 900 kGy(90 Mrad) . . . 4.3.2 KS C IEC 62397:2012 4 . , , . . 1 000 . , . - . . - . , , . . . 4.3.3 RTD . RTD . , RTD . . . - - , 10 8cm3/s . , . , . , . 4.4 4.4.1 RTD . . 1 RTD . 2 RTD I( ) .

7、 3 4 RTD , II . RTD . I( )： ( ) , . , RTD . . 2). II( )： . , 4.7.6 . 2) RTD . RTD . KS C IEC 62397:2012 5 0.25 . . . 1 RTD 2 RTD( I) 3 RTD( II) ( ) RTD 6 S.S. KS C IEC 62397:2012 6 4 RTD( II) 150 . , RTD . . (Electrical continuity) . (Contact resistance) 0.25 . (Lead wires) 3 4 . 4 , RTD 3 . RTD RTD

8、 . . RTD RTD 2, 3 4 . RTD . I RTD . , RTD . 4.4.2 1 RTD , , . . 1 100 kN/m2 RTD . KS C IEC 62397:2012 7 . . , , , . , . X X . , , . . . . . (： , ) . 4.5 . RTD . 4.6 ( ) RTD “ ” “ ” . a) 330 b) 40 c) ( ) 3 Gy/h(300 rad/h) ( ) 100 kGy/h(10 Mrad/h) 2 000 kGy(200 Mrad), 40 d) / 0 330 100 %( ) 50 ppm “ ”

9、 RTD . KS C IEC 62397:2012 8 (LOCA), (HELB) RTD . . , KS C IEC 60780 . RTD I&C . RTD - . RTD 5.4 . RTD . RTD , , 4.7 RTD , , - . KS C IEC 60980 . 4.7 RTD RTD . 4.7.1 (RTD ) 0.25 (0 100 ) 0.25 %( 100 ) . 0.2 % . - , , , , . 4.7.2 . . Rt R0(1 AT BT2) Rt： T . R0： 0 . A, B ： . A B A (1 /100), B /104) .

10、( ) ： 0.003 85 / . ( ) ： 1.5 . ( .) RTD 0.003 850 / . 0 RTD 100 . 0 RTD 200 . 9 330 1 - . ( ) 0 150 0.75 150 0.50 % KS C IEC 62397:2012 9 . . (5.4.1 ). . 4.7.3 . . . 0.2 10 mW . 4.7.4 (step) 63.2 % . . RTD, RTD RTD . . RTD KS C IEC 61224 . 20 (10.15) m/s (752.5) . 1 m/s . , 63.2 % RTD 20 , RTD 3.0 .

11、 LCSR(Loop Current Step Response) (in situ) . LCSR 1, 2 40 mA 80 mA . 50 LCSR . 4.7.5 ( 4.7.2 ). 4.7.6 RTD . , 100 V d.c. 100 M, 200 , 100 V d.c. 10 M . 5.4 (33010) . . KS C IEC 62397:2012 10 4.7.7 ( ) RTD ( ) . 0 , 330 0 25 . 5 , 60 . , 1 . 0 100 . 100 M , 0 0.1 , 150 0.15 . . 4.7.8 RTD ( ) . ( , ,

12、 , , ) . . ( ) (33010) . . . 10 5 000 Hz 1 10 5 000 10 Hz , 1 (logarithmic) 0.762 mm , - , 5 g 2 RTD . . a) b) 0.1 . c) 100 0.15 . d) (4.7.6 ). RTD , . KS C IEC 60980 . 4.7.9 RTD . I II (5.4 ). I II 4.4.1 . RTD , 2 (1012.0) kPa . . KS C IEC 62397:2012 11 100 M . 0 5.4.1 . 4.7.10 RTD , RTD . RTD 10 M , 1/10 . 4.7.11 (In situ) (in situ) . LCSR RTD (in situ) . (Wheatstone) RTD 40 mA 80 mA d.c. . RTD . RTD RTD . LCSR RTD