KS C IEC 60079-29-1-2012 Explosive atmospheres－Part 29-1：Gas detectors－Performance requirements of detectors for flammable gases《爆炸性环境 第29-1部分 气体探测器 可燃气体探测器的性能要求》.pdf

1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS C IEC 60079 29-1 29-1： KS C IEC 60079 29-1:2012 2012 12 11 http:/www.kats.go.krKS C IEC 60079 29-1:2012 : ( ) ( ) ( ) : (http:/www.standard.go.kr) ： ：2012 12 11 2012-0690 ： ： ( 02-509-7294) (http:/www.kats.go.kr). 10 5 , . KS C IEC 60079 29-1:2012 i ii .

2、iii 1 1 2 2 3 .2 3.1 (Gas properties)2 3.2 (Types of instruments)4 3.3 (Sensors) .5 3.4 (Supply of gas to instrument) .5 3.5 (Signals and alarms) .5 3.6 (Times).6 3.7 (Miscellaneous) .6 4 .7 4.1 .7 4.2 .8 4.3 .12 4.4 12 5 14 5.1 .14 5.2 14 5.3 16 5.4 .18 A( ) .28 B( ) .32 38 KS C IEC 60079 29-1:2012

3、 39 KS C IEC 60079 29-1:2012 ii . , , . , , . KS C IEC 60079 29-1:2012 iii 2007 1 IEC 60079 29-1, Explosive atmospheres Part 29-1： Gas detectors Performance requirements of detectors for flammable gases , . , , KS C IEC 60079 29-2, , . KS C IEC 60079 29-1:2012 29-1： Explosive atmospheres Part 29-1：

4、Gas detectors Performance requirements of detectors for flammable gases 1 KS C IEC 60079 29 , , . (3.1.8 ) . . . ( ) (： 0 60, 0 40 10 % 40 60 15 % ( ). . , . (integral sampling system) . , , . ( ) . . KS C IEC 60079 0 . KS C IEC 60079 0 KS C IEC 60079 29 1 . 1 KS C IEC 60079 29 1 . ( ) . I ( , ) . /

5、 KS C IEC 60079 29-1:2012 2 . 2 . 3 “ (LFL, lower flammable limit)” “ (LEL, lower explosive limit)” “ (UFL, upper flammable limit)” “ (UEL, upper explosive limit)” . LFL UFL . . 4 “ X % ” X % . 2 . . ( ) . KS C IEC 60079 0, 0： IEC/TR 60079 20:1996, Electrical apparatus for explosive gas atmospheres

6、Part 20： Data for flammable gases and vapours, relating to the use of electrical apparatus KS C IEC 60079 29-2, 29-2： , , KS C IEC 61000 4-1, (EMC) 4-1： KS C IEC 61000 4 KS C IEC 61000 4-3, (EMC) 4-3： KS C IEC 61000 4-4, (EMC) 4-4： 3 KS C IEC 60079 0 . (IEV, International Electrotechnical Vocabulary

7、) IEC 60050 (426) 426 . 3.1 (Gas properties) 3.1.1 (Ambient air) 3.1.2 (Clean air) , 3.1.3 (Explosive gas atmosphere) KS C IEC 60079 29-1:2012 3 1 . (mist) . 2 (3.1.9 ) . 3 101.3 kPa 20 . 3.1.4 (Firedamp) 3.1.5 (Flammable gas) “ ” . 3.1.6 (Lower Flammable Limit), LFL (IEC 60079 20 ) (LEL, lower expl

8、osive limit) . 3.1.7 (Poison) ( ) 3.1.8 (Potentially explosive atmosphere) ( ) UFL . 3.1.9 (Upper Flammable Limit), UFL (IEC 60079 20 ) (UEL, upper explosive limit) . 3.1.10 (Volume fraction) , . KS C IEC 60079 29-1:2012 4 . . 3.1.11 (Zero gas) / . 3.2 (Types of instruments) 3.2.1 (Alarm-only appara

9、tus) 3.2.2 (Aspirated apparatus) ; 3.2.3 (Continuous duty apparatus) 3.2.4 (Diffusion apparatus) , 3.2.5 (Fixed apparatus) 3.2.6 I (Group I apparatus) 3.2.7 II (Group II apparatus) 3.2.8 (Portable apparatus) . . a) 1 kg b) , ( ) c) , . KS C IEC 60079 29-1:2012 5 3.2.9 (Spot-reading apparatus) , ( 5

10、) 3.2.10 (Transportable apparatus) 3.2.11 (Stand-alone gas detection apparatus) (： 4 20 mA 3 15 psi) 3.2.12 (Stand-alone control unit) , , 3.3 (Sensors) 3.3.1 (Remote sensor) 3.3.2 (Sensors) 3.4 (Supply of gas to instrument) 3.4.1 (Sample line) (： , ) 3.4.2 (Sampling probe) . (： 1 m) ( .) . 3.5 (Sig

11、nals and alarms) 3.5.1 (Alarm set point) , 3.5.2 (Fault signal) KS C IEC 60079 29-1:2012 6 , 3.5.3 (Latching alarm) 3.5.4 (Special state) , 3.6 (Times) 3.6.1 (Drift) ( ) 3.6.2 (Final indication) 3.6.3 (Minimum time of operation)( ) 3.6.4 (Stabilization) 2 3 1 % 3.6.5 (Time of response) t(x)( ) (x) 3

12、.6.6 (Warm-up time) ( ) ( 1 2 ) 3.7 (Miscellaneous) 3.7.1 (Nominal supply voltage) 3.7.2 (Special tool) , KS C IEC 60079 29-1:2012 7 3.7.3 (Type of protection) (4.1.2 ) 1 ( ) 2 ( ) 4 4.1 4.1.1 A . . (3.6.6 ) (3.6.6 ) KS C IEC 60079 29-1:2012 8 4.1.2 4.2 5. . KS C IEC 60079 . KS C IEC 60079 . . . 4.1

13、.3 I , (“ia”) . 4.1.2 . 4.2 4.2.1 (： ) (： ) . . . 30 cm . , . 4.2.2 4.2.2.1 . . 4.2.2.2 . . 4.2.2.3 . 4.2.2.4 KS C IEC 60079 29-1:2012 9 . 4.2.2.5 , . (a) . a) . b) . c) . 4.2.2.6 , . 4.2.3 4.2.3.1 . 4.2.3.2 , , . . . . . , . . 15 . 4.2.3.3 5 % v/v I 3 % v/v . . 4.2.3.4 100 % LFL II 60 % LFL . . II

14、60 % LFL . KS C IEC 60079 29-1:2012 10 4.2.4 . . . a) b) 4.2.5 . , . . . . 4.2.6 4.4 j) . 4.2.7 ( ) . . 0, 10 %, 25 %, 50 %, 75 %, 100 % . (： , ) . . 4.2.8 ( ) . . 0, 10 %, 25 %, 50 %, 75 %, 100 % . 100 % (： , ) . . KS C IEC 60079 29-1:2012 11 4.2.9 . 4.2.9.1 . . . - , , . . 4.2.9.2 . . 4.2.9.3 . a) ( ) . b) . c) . . , . . . d) . . e) . 1) 2) 3) 4)