:2010-11-16GB4793.1-2007邓振进(湖南省医疗器械与药用包装材料(容器)检测所,湖南长沙410001)〔〕TH77 〔〕A 〔〕1002-2376(2011)01-0009-04 〔 〕本文介绍了GB4793.1中电气间隙和爬电距离定义、影响因素以及测量方法。 〔〕电气间隙;爬电距离;瞬态过电压;绝缘类型;基本绝缘;辅助绝缘;加强绝缘;漏电起痕指数。 。,、,、,;、,/,,,。1 ,;,,。2 (、、),(1、2、3)、(CTI)、。、,,,“”。CTI(),:Ⅰ600≤CTI;Ⅱ400≤CTI600;Ⅲa175≤CTI400;Ⅲb100≤CTI175。CTIGB/T4207,,A(50)。、,。。,,,。,、、、。(1),、,,,,,DiscussionabouttheVerificationandEffectFactorofDeterminationofResistanceofProtectiveClothingMaterialstoPenetrationbyBloodBornePathogens———TestMethodUsingPhi-X174BacteriophagePanSichun,WangZhengqi,YueWeihua,LiuSimin(Beijinginstituteofmedicaldevicetesting,Beijing100120,China)Abstract:ThestandardofYY/T0689-2008determinationofresistanceofprotectiveclothingmaterialstopenetrationbyblood-bornepathogens———testmethodusingphi-X174bacteriophagisbasedontheISO16604:2004internationalstandard.Combinedwithsomeyears'practicalexperiencesofproducttestingwithprotectivematerial,wedidthefeasibilitystudyofthisstandard'sapplicability.Keywords:resistanceofpenetrationbyblood-bonepathogens;phi-X174bacteriophag(ATTC13706-B1);dedicatedcoli-bacillus(ATTC13706)920111。GB4793.1:1、2、3,、,,,,,2。(2)(),。2000m,1,,。(3),。。、,2。1 5000mm≤20001.002001~30001.143001~40001.294001~50001.48 (4)2。(5)2(),。3 3.1 (),、,,+,。、、,,、()、,,。:、、。,,(,,GB4793.1C1)“”“”,GB4793.1C211。111、X。2 -V(1)mm123CTI≥100mmCTI≥100mmCTI≥100mmICTI≥600mmIICTI≥400mmIIICTI≥100mmICTI≥600mmIICTI≥400mmIIICTI≥100mm50~≤1000.10.10.250.160.711.01.41.82.02.2100~≤1500.50.50.50.50.81.11.62.02.22.5150~≤3001.51.51.51.51.52.13.03.84.14.7300~≤6003.03.03.03.03.04.36.07.58.39.41::2:0.2mm;3:0.8mm。2:,。10MedicalEquipmentVol.24,No.11 C.1Xmm10.2521.031.5 3mm,X。111。,。:(1)X,(3)。(2)X,(4)。(3),。GB4793.1,,。:1:(1、,21mm)。,,dr,x1x2,x1“”,x2“”,x2drx1;dl,y1y2,y1“”,y2“”,y2dly1。1 1 ,X、。dr=AB+BC+CDdl=AB+BC+CD。2:(2,21mm)。(2),2,1mm,1mm,B,B1mm,B“”,ABAB1mm,1mm,BCCD,BC+CD+1AD;ACCD,AC+CDAD。22 ,。dr=AB+BC+CD(AB=1mm)dl=AC+CD。3:3。33 ,X、。“”,dl=AB+BE+EF。,dr=AB+BC+CD+DE+EF。4:4。41120111 4 XV。“”,dl=AB+BG+GH。,X“”,dr=AC+CD+DE+EF+FH(DE=1mm)。5:5。55 。,dl=AC+CD+DF。,dr=AB+BC+CD+DE+EF。6:6。66 ,X。“”,dl=dr=AB+BC+CD。7:7。77 ,X。“”,dl=AD+DE+EG。,dr=AC+CD+DE+EF+FG。8:8。88 ,X,X。(dr=AB+BC+CD+DE)(dl=AC+CD+DE)8。9:9。9 9 ,dr=AC+CF+EF+FG+GH。,dl=AB+BD+DH。10:10。1010 ,,dl=AC+CD。X,,dr=AB+BC+CD。11:11。1111 C。d+D。——————----3.2 (),。3.3 (、、),,,。12MedicalEquipmentVol.24,No.1