1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS C IEC 60079 31 31： “t” KS C IEC 60079 31:2012 2012 12 11 http:/www.kats.go.krKS C IEC 60079 31:2012 : ( ) ( ) ( ) : (http:/www.standard.go.kr) ： ：2012 12 11 2012-0690 ： ： ( 02-509-7294) (http:/www.kats.go.kr). 10 5 , . KS C IEC 60079 31:2012 i ii . iii 1
2、1 2 1 3 .2 4 .2 4.1 .2 4.2 “ta” .2 5 3 5.1 .3 5.2 4 6 .5 6.1 5 6.2 6 7 6 7 KS C IEC 60079 31:2012 8 KS C IEC 60079 31:2012 ii . , , . , , . KS C IEC 60079 31:2012 iii 2008 1 IEC 60079 31, Explosive atmospheres Part 31： Equipment dust ignition protection by enclosure “t” , . KS C IEC 60079 31:2012 31
3、： “t” Explosive atmospheres Part 31： Equipment dust ignition protection by enclosure “t” 1 KS C IEC 60079 . , . KS C IEC 60079 0 . KS C IEC 60079 0 . , . / . . 1 . 2 , , . . 2 . . ( ) . KS C IEC 60034 1, 1： KS C IEC 60079 0, 0： KS C IEC 60079 7, 7： “e” KS C IEC 60127(all parts), KS C IEC 60691, ISO
4、965 1:1998, ISO general purpose metric screw threads Tolerances Part 1： Principles and basic data ISO 965 3:1980, ISO general purpose metric screw threads Tolerances Part 3： Deviations for KS C IEC 60079 31:2012 2 constructional screw threads 3 KS C IEC 60079 0 . IEC 60050 42611) . 3.1 “t” , . 3.2 2
5、 . 3.3 . 4 “t” 3 , “ta”, “tb” “tc” . (EPL) . 4.1 “t” . ta(EPL “Da”) tb(EPL “Db”) tc(EPL “Dc”) “t” . 4.2 “ta” “ta” KS C IEC 60079 31 . “ta” 10 kA . 4.2.1 4.2.1.1 . 1) . KS C IEC 60079 31:2012 3 . , . . 4.2.1.2 . KS C IEC 60127 KS C IEC 60691 , . . KS C IEC 60127 170 % . . KS C IEC 60079 0 “X” (Specif
6、ic Conditions of Use) . 4.2.1.3 6.1.2 . 5 5.1 5.1.1 . 6.1.1 . . (seal) ISO 965 1 ISO 965 3 , 5 . (seal) . , . , . 5.1.2 (seal) . (seal) , . KS C IEC 60079 31:2012 4 1 (seal) (seal) . 2 , . . (seal), , . 5.1.3 . . . 3 mm . 5.1.4 , , . 5.1.5 5.1.5.1 . 5.1.5.2 . . 5.2 5.2.1 KS C IEC 60079 0 5.1 . “ta”
7、6.1.1 . . ： Ex . KS C IEC 60079 31:2012 5 Ex . 5.2.2 “ta”, “tb” “tc” . ISO 956 1 IESO 965 3 5 . 6 6.1 6.1.1 KS C IEC 60079 0 , . 6.1.3 , 1 . 1 a IIIC IIIB IIIA “ta” IP6X IP6X IP6X “tb” IP6X IP6X IP5X “tc” IP6X IP5X IP5X a KS C IEC 60079 0 (IP) “tb” “tc” . “ta” 8 4 KPa . IP . 6.1.2 2 KS C IEC 60079 0
8、 . “ta” 4.2 , 500 mm . KS C IEC 60079 31:2012 6 2 ( ) Un 10 % Un 10 % Un 10 % a Un10 % b Un10 %c Un 10 % Un 10 % Un Un10 % Un . a . b“ ” . KS C IEC 60079 7 . c A (KS C IEC 60034 1 ). KS C IEC 60079 0 “X” A(KS C IEC 60034 1), 5 % . 6.1.3 4kPa( “ta” ), 2kPa( “tb” “tc” ) 60 . . . IP . Ex . 6.2 “ta”, “t
9、b”, “tc” . 7 KS C IEC 60079 0 , “ta”, “tb” “tc” . “ta”, “tb”, “tc” . “ta” . KS C IEC 60079 31:2012 7 1 IEC 60050 426, International Electrotechnical Vocabulary(IEV) Part 426： Equipment for explosive atmospheres (IEV) 426： KS C IEC 60079 31:2012 8 KS C IEC 60079 31:2012 . 1 2008 1 IEC 60079 31, Explo
10、sive atmospheres Part 31: Equipment dust ignition protection by enclosure “t” , . 2 , , . KS C IEC 60079 0 KS C IEC 60079 0 . , . . . , . , . 3 KS A 0001:2008, . 31：“t” 153787 1 92 3(16) (02)26240114 (02)262401489 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS C IEC 60079 31:2012 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Explosive atmospheres Part 31：Equipment dust ignition protection by enclosure “t” ICS 29.260.20
