1、 2003 4 30 KS C IEC 617791 KS C IEC 617791 :20 03 C IEC 617791:2003 ( ) ( ) ( ) ( ) () : :2003 4 30 03429 : : ( ) ( 025097345) . 7 5 , . ICS 17.060 KS C IEC 1: 617791 :2003Electrical apparatus for the detection and measurement of flammable gasesPart 1:General requirements and test methods 1998 4 1 I
2、EC 617791 Electrical apparatus for the detection and measurement of flammable gasesPart 1:General requirements and test methods , . 1. 1.1 1.1.1 , , . . a) KS C IEC 617792 5 % b) KS C IEC 617793 100 % c) KS C IEC 617794 100 % d) KS C IEC 617795 100 % 1. KS C IEC 617791 . ( ) . , , . / , . 2. 100 % 1
3、00 % . 3. “ (lower flammable limit, LFL)” “ (lower explosive limit, LEL)” , “ (upper flammable limit, UFL)” “ (upper explosive limit, UEL)” . LFL UFL . . 1.1.2 C IEC 617791:2003 2 . , . . 1.1.3 , , . 1.1.4 . 1.1.5 , , . 1.2. . . a) IEC 60050(351):1983 (IEV)351: b) KS C IEC 600790:2001 c) KS C IEC 60
4、0791:2001 1: (d) d) KS C IEC 600792:2001 2: (p) e) KS C IEC 600795:2001 5: (q) f) KS C IEC 600796:1995 6: (o) g) KS C IEC 600797:1990 7: (e) h) IEC 6007910:1996 10: i) KS C IEC 6007911:2001 11: (i) j) IEC 6007913 13: k) IEC 6007914:1996 14: ( ) l) KS C IEC 6007915:2002 15: (n) m) KS C IEC 6007918:20
5、02 18: (m) n) IEC 6007919:1993 19: ( ) o) IEC 6007920:1996 20: p) IEC 61000041:1992 (EMC)4: 1: EMC q) IEC 6100043:1995 (EMC)4: 3:, RF, r) IEC 6100044:1995 (EMC)4: 4: / EMC s) ISO 2738:1987 , t) ISO 4003:1977 u) ISO 6142:1981 v) ISO 61451:1986 1: w) ISO 61453:1986 3:(流) x) ISO 61456:1986 6: C IEC 617
6、791:2003 3 y) ISO 6147:1979 2. . KS C IEC 600790 . 2.1 a) (ambient air) b) (clean air) , c) (explosive gas atmosphere) . 1. , . 2 . 2.1 i) , . 3 . 101.3 kPa 20 . d) (firedamp) , e) (flammable gas) f) lower flammable limit(LFL) g) () poisons(of sensors) h) (potentially explosive atmosphere) ( .) i) u
7、pper flammable limit(UFL) 2.1 c) 2. j) volume ratio(v/v) k) (zero gas) / 2.2 a) (alarm only apparatus) 1.1.1 b) (aspirated apparatus) c) (continuous duty apparatus) d) (diffusion apparatus) e) (fixed apparatus) f) (group apparatus) g) (gorup apparatus) C IEC 617791:2003 4 h) (portable apparatus) , .
8、 , . 1) 1kg , , . 2) ( .) . 3) , i) (spotreading apparatus) j) (transportable apparatus) 2.3 a) (remote sensor) b) ()(sensor) 2.4 a) (sample line) b) (sampling probe) . 1m , . 2.5 a) (alarm set point) , b) (fault signal) , c) (latching alarm) 2.6 a) (drift) b) (final indication) c) ( )minimum time of operation(spotreading apparatus) d) (measuring span) IEV 3510539 e) (stabilization) 2 1 % f) t (x)time of response t (x) (warmup) . . g) (warmup time) ( 1 2 ) . .
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