1、 KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS KS C IEC 600792 2： “p” KS C IEC 600792 ：2012 2012 12 11 http:/www.kats.go.krKS C IEC 600792:2012 : ( ) ( ) ( ) : (http:/www.standard.go.kr) ： ：2001 10 8 ：2012 12 11 2012-0689 ： ： ( 02-509-7294) (http:/www.kats.go.kr). 10 5 , . KS C IEC 600792:2012 i . iv v
2、1 1 2 1 3 .2 4 4 5 6 5.1 .6 5.2 .6 5.3 6 5.4 7 5.5 , , .7 5.6 8 5.7 .8 5.8 8 6 .9 6.1 .9 6.2 px py .9 6.3 pz 9 7 ( ).10 7.1 .10 7.2 .10 7.3 .10 7.4 px 10 7.5 .10 7.6 px 11 7.7 11 7.8 .11 7.9 11 7.10 12 7.11 .13 7.12 .13 7.13 .13 7.14 py 13 8 13 8.1 .13 8.2 13 8.3 14 8.4 14 8.5 14 KS C IEC 600792:201
3、2 ii 8.6 .14 8.7 .14 9 14 9.1 14 9.2 .14 10 15 11 .15 11.1 15 11.2 15 11.3 15 12 .15 12.1 .15 12.2 .16 12.3 .16 13 .17 13.1 17 13.2 .17 13.3 18 14 18 15 19 16 19 16.1 .19 16.2 19 16.3 ( ) .20 16.4 .20 16.5 .22 16.6 23 16.7 .23 16.8 .23 17 .24 17.1 24 17.2 24 17.3 24 17.4 .24 18 24 18.1 .24 18.2 .24
4、18.3 24 18.4 25 18.5 25 18.6 25 18.7 25 KS C IEC 600792:2012 iii 18.8 25 18.9 26 19 26 A() 27 B() 28 C() .30 D() .35 E() 37 F() .38 G() 40 H() “ (EPL)” 41 46 KS C IEC 600792:2012 47 KS C IEC 600792:2012 iv . , , . , , . KS C IEC 600792:2012 v 2007 5 IEC 600792, Explosive atmospheresPart 2 ： Equipmen
5、t protection by pressurized enclosure “p” , . KS C IEC 600792:2012 2： “p” Explosive atmospheres Part 2：Equipment protection by pressurized enclosure “p” 1 “p” ( “ ” .) . . KS C IEC 600790 . KS C IEC 600790 . . a) , b) 21 % IEC 6007913 IEC 6007916 1 , , . 2 , . 3 “px” “py” Mb Gb . “pz” Gc . H . 2 , .
6、 . KS C IEC 600345, 5： (IP) KS C IEC 60050151, 151： KS C IEC 600790, KS C IEC 600792:2012 2 KS C IEC 60112, KS C IEC 60529, (IP) KS C IEC 606641, 1：, , IEC 60050(426), International Electrotechnical VocabularyChapter 426 ：Electrical apparatus for explosive atmospheres 3 KS C IEC 60050151, IEC 60050(
7、426) KS C IEC 600790 . “ (voltage)” “ (current)” , (r.m.s.) . 3.1 (alarm) 3.2 (containment system) 3.3 (dilution) “ (outside the dilution area)” . . (Upper Explosive Limit, UEL) . 3.4 (dilution area) 3.5 (enclosure volume) . , 3.6 (flammable substance) , , 3.7 (hermetically sealed device) , , KS C I
8、EC 600792:2012 3 3.8 (ignition-capable apparatus, ICA) . 7.13 . 3.9 (indicator) , 3.10 (internal source of release) , 3.11 (leakage compensation) . 3.12 (overpressure) () 3.13 (pressurization) 3.14 (pressurization system) 3.15 (pressurized enclosure) 3.16 (protective gas) ( , ) , 4()：1() , , . 3.17
9、(protective supply) . () . . KS C IEC 600792:2012 4 3.18 (purging) 3.19 (routine test) () IEV 151-04-16, 3.20 (static pressurization) . 3.21 px (type px) Gb Mb 3.22 py (type py) Gb Gc 3.23 pz (type pz) Gc 3.24 (type test) 3.25 (safety device) 4 (Mb, Gb Gc), , px, py, pz ( 1 ). ( 2 ). KS C IEC 600792
10、:2012 5 1 . . .G b Mb px apy .Gc pz . / Gb Mb px apy / Gc px( .) py b Gb px a () cpy Gc pz() c . d . apx I . b E c “()” (13. ). d . 2 px py pz pz KS C IEC 60529 KS C IEC 600345 IP4X IP4X IP4X IP3X KS C IEC 600790, 8 KS C IEC 600790, 8 KS C IEC 600790, 8 KS C IEC 600790, 8 1/2 , EPL Gb Mb , (5.8 ) .
11、( 1) , (5.8 ) , (5.8 ) EPL Gc . ( 2) . ( 2) . ( 2) . ( 2) EPL Gb Mb (5.8 ) (5.8 ) (5.8 ) (5.8 )KS C IEC 600792:2012 6 px py pz pz EPL Gc , (5.8 ) . ( 1) , (5.8 ) , (5.8 ) / 5.3 6.2 b) ii) 5.3.6 1 5.3.6 3 5.3.6 3 / 7.12 ( .) 5.3.6 1 5.3.6 3 5.3.6 3 6.2 b) ii) . ( 1) 5.3.6 5.3.6 1 6.2 b) ii) py . . 2
12、. 3 pz . , . 5 5.1 2 . IP44 . 5.2 , . 5.3 5.3.1 I . KS C IEC 600790 , , 7.13 , . 7.6 . 5.3.2 I KS C IEC 600792:2012 7 KS C IEC 600790 . 5.3.3 II KS C IEC 600790 . px , , 7.13 . . . a) . b) . c) 2.5 kPa . 5.3.4 II . 5.3.5 px . 5.3.6 I II . . 5.4 , 1.5( 200 Pa) . , . KS C IEC 600790 29.2 i) “X” , . 5.
13、5 , , 5.5.1 . 1 . KS C IEC 600792:2012 8 2 , , . 3 , , . 4 . 5 (： ) . . 6 . 5.5.2 . 1 000 cm 3 1 cm 2 , 6.3 mm (vent) . 5.5.3 (CRT) . 5.5.4 20 cm 3 1 % . 1 1 % (LEL) 25 % (A.2 ). 2 , , . 5.5.5 , . , . 5.6 I , 16 A . KS C IEC 60112 CTI 400 M ( .) KS C IEC 606641 4 3 III 5.7 IP , . 5.8 ( ) . KS C IEC
14、600792:2012 9 (make/break) 10 A 275 V 60 V . 1 , Gb Mb . 2 , Gc . , KS C IEC 600790 29.2 i) “X” , . 5.9 . pz KS C IEC 600790 KS C IEC 6007915 . 6 6.1 KS C IEC 600790 , 6.2 6.3 . 6.2 px py . a) b) . i) KS C IEC 600790 ii) px KS C IEC 600790 , ( .) , , . py . 6.3 pz . , . KS C IEC 600792:2012 10 7 ( ) 7.1 (7.13 ) . 7.2 ( 3 ) . . px py pz 3 px py pz 7.9 7.9 7.9 d) , , 7.6 7.7 c) 7.7 c) 6.2 b) . ( ) . 7.12 ( ) . ( ) . (15. )
