新手求助GR 487和ANSI/SCTE 60 2004是什么标准?
请问一下GR487和ANSI/SCTE602004具体是什么标准啊,知道的,请指教,谢谢~:handshake GR487后面有core么?我在百度上搜的是电器设备机柜通用要求,后者是界面湿度移动双端的试验方法GR 487
GR487好像是个预计的标准吧。有点像是bellcore之类的标准。回复 #2 angel8679 的帖子
非常感谢版主的回复!GR487后面是有core的,我具体想了解的是GR487:Sec3.28.2的内容,请问版主是否有相关资料,谢谢~~回复 #3 imm 的帖子
谢谢您的回复!:)GR 487: Sec 3.28.2
原帖由xiangxia023于2007-8-1111:47发表http://www.kekaoxing.com/club/images/common/back.gifGR487后面是有core的,我具体想了解的是GR487:Sec3.28.2的内容
我好像也有点映象在哪见过类似的GR类的标准。但是你这个手头上倒是没有,盼其它同仁分享一下。 http://www.bzjsw.com/bbs/viewthread.php?tid=16323
這個網址是該標準內容,請參考!
回复 #7 流浪168 的帖子
不是这个!是后面带有core!你给的这个我也找到了!
ANSI-SCTE 60 2004
AMERICANNATIONALSTANDARDANSI/SCTE602004(FormerlyIPSTP013)
TestMethodForInterfaceMoistureMigrationDoubleEnded
1.0SCOPE
1.1Thepurposeofthisprocedureistoprovideamethodfordetectingmoisturepenetrationintotheconnector/cableandortheconnect/portinterfacefordropandhardlinecable.
1.2Althoughtheartificialenvironmentcannotbedirectlycorrelatedtofieldservice,thetestsinvolveseveralenvironmentalmechanismsthatmayaffectaconnector’stendencytoleakinanoutdoorenvironment.
1.2.1Temperaturecyclingcreatesapumpingactionwithpressurevaryingaboveandbelowbarometricpressure.
1.2.2Temperaturecyclingwillacceleraterelaxationofthematerials.
1.2.3Internalcondensationmaybreakthesurfacetensiononaconnectorwithamarginalseal.
1.2.4Initialleakagewillincreasethepumpingactionduetotheintroductionofanon-idealgas(watervapor),whichwillhavealargerpressurechangethanair.
1.3Liquidpenetrantexaminationcanbeusedforinvestigationofthepresence,location,andtoanextent,thenatureandmagnitudeofthedetectedmoisturepaths.
1.4Thesemethodscanbeusedtodeterminetheliquidtightnessofintegralorexternalseals,encapsulantsorotherenvironmentalprotectiondevices.
1.5Anacceptableperformancelevelforagivencable/connectorcombinationpertestmethodisderivedfromthevisualappearanceandconditionoftheinterfaces.Theratioisdeterminedandexpressedasapercentpassedbasedonthetestdata.
2.0EQUIPMENT
2.1Visibleliquidpenetrant:PhenolReddye,SodiumHydroxide,deionizedordistilledwater.MixonegramofthePhenolRed(ASCreagent,CAS#143-74-8)dyeper3.785litersofwater.Addapproximately20dropsofSodiumHydroxide(CAS#1310-73-2)toturnthesolutionarosyredcolor.
2.2Separatecontainers
2.2.1Thesolutioncontainershallbeofadequatesizeandshapetoallowcom