BS IEC 60079-1997 易爆气体氛围用电器.第19部分:易爆氛围(矿井和爆炸的除外)用电器的维护和翻修

作者:标准资料网 时间:2024-05-29 14:58:50   浏览:8475   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Electricalapparatusforexplosivegasatmospheres.Repairandoverhaulforapparatususedinexplosiveatmospheres(otherthanminesorexplosives)
【原文标准名称】:易爆气体氛围用电器.第19部分:易爆氛围(矿井和爆炸的除外)用电器的维护和翻修
【标准号】:BSIEC60079-1997
【标准状态】:现行
【国别】:英国
【发布日期】:1997-10-15
【实施或试行日期】:1997-10-15
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:可燃性环境;电气外壳;电气安全;电气试验;回收;变更;旋转电机;翻新;爆炸性环境;文献;检修;维修;防护电气设备;认证(认可);电气设备;火灾危险
【英文主题词】:
【摘要】:ThispartofIEC79:-givesinstructions,principallyofatechnicalnature,ontherepair,overhaul,recla-mationandmodificationofacertifiedapparatusdesignedforuseinexplosiveatmospheres(otherthenminingapplicationsorexplosiveprocessingandmanufacture);-isnotapplicabletomaintenance,otherthanwhenrepairandoverhaulcannotbedisassociatedfrommaintenance,neitherdoesitgiveadviceoncableentrysystemswhichmayrequirerenewalwhentheapparatusisre-installed;-assumesthatgoodengineeringpracticesareadoptedthroughout.NOTE-Muchofthecontentofthisstandardisconcernedwiththerepairandoverhaulofelectricalrotatingmachines.Thisisnotbecausetheyarethemostimportantitemsofexplosion-protectedequipmentbutratherbecausetheyareoftenmajoritemsofrepairablecapitalequipmentinwhich,whatevertypeofprotectionisinvolved,sufficientcommonalityofconstructionexistsastomakepossiblemoredetailedinstructionsfortheirrepair,overhaul,reclamationormodification.
【中国标准分类号】:K35
【国际标准分类号】:29_260_20
【页数】:46P;A4
【正文语种】:英语


下载地址: 点击此处下载
【英文标准名称】:StandardGuideforMakingQualityNondestructiveAssayMeasurements
【原文标准名称】:无损检测的标准测量指南
【标准号】:ASTMC1592/C1592M-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C26.10
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:Neutronmoderators;Nondestructiveevaluation(NDE);Passiveneutroncoincidencecounting;Secularequillibrium;Totalmeasurementuncertainty(TMU)
【摘要】:NDAmeasurementpracticesaimedatachievingqualityresultsaredescribedinthisguide.Theapplicationofthematerialprovidedinthisguideshouldbedeterminedonacasebycasebasis.Notallelementsarerequiredforallapplications.NondestructiveassaymeasurementsaretypicallyperformedwhentheitemsmeasuredorgoalsofthemeasurementprogramfavorNDAoverdestructiveanalysis.NDAistypicallyfavoredwhencollectingarepresentativesampleoftheitemisdifficultorimpractical(forexample,scrapandwasteitems),personnelexposurewouldbesignificant,spreadofcontaminationfromsamplingwouldoccur,generationofsecondarywastemustbeminimized,theweightand/ortareweightoftheitemcannoteasilybedetermined(forexample,inplaceprocessequipment),rapidturnaroundofthemeasurementresultsisneeded,ortheNDAmeasurementissignificantlylessexpensivethantheequivalentdestructiveanalysis.Theprinciplesprovidedinthisguideshouldbeusedtodeterminewhichtypeofmeasurementisbestsuitedtothemeasurementapplication.Thisdeterminationinvolvesconsiderationofthecharacteristicsoftheitemstobemeasured,aswellasthegoalsofthemeasurementprogram.ThisguideappliestothesuiteofNDAinstrumentsandmeasurementmethods,manyofwhicharedescribedindetailinRefs(1)and(2).Apartiallistingofmeasurementmethodsandapplicableusereferencesisprovidedin5.6.1.ItisincumbentupontheusertoseekadditionalguidancewithinASTMmethod-specificstandards,asthisguidedoesnottakeprecedence.Additionalinformationonspecificmethodsisbestfoundintechnicalmeetingtransactions,journals,commercialapplicationnotes,andNRC/DOEpublications.Thisguidemaybeappliedtomanysituationsspanningtherangeofnuclearmaterialsfromproductthroughwaste.Typicalapplicationsinclude:themeasurementandcharacterizationoftransuranicwastes,low-levelwastes,andmixedwastes;thedeterminationofradioactivitybelowsomeregulatorythreshold,estimatedfornon-detectedradionuclides;themeasurementofsafeguardednuclearmaterials;shipperreceiverconfirmation;confirmationofnuclearmaterialinventory;supportofnuclearcriticalitysafetyevaluations;measurementofholdupofspecialnuclearmaterialinprocesssystems;supportofdecontaminationanddecommissioningactivities;andin-situanalysesoffacilities,glove-boxes,hotcells,andtheenvironmentpriortoandfollowingdemolition.Whenappliedtomeasurementofwaste,thisguideshouldbeusedinconjunctionwithawastemanagementplanthatsegregatesthecontentsofassayitemsintomaterialcategoriesaccordingtosomeorallofthefollowingcriteria:bulkdensityofthewaste,chemicalformsoftheradioactiveconstituentsandmatrix,(x03B1;,n)neutronintensity,hydrogen(moderator)andabsorbercontent,thicknessoffissilemass(es),andtheassayitemcontainersizeandcomposition.Eachmatrixmayrequireadifferentsetofcalibrationstandardsandmayhavedifferentmasscalibrationlimits.Theeffectonthequalityoftheassay(thatis,maximizingprecisionandminimizingbias)cansignificantlydependonthedegreeofadherencetothiswastemanagementplan.Thisguideaddresseselementsofqualitymeasurementpracticesuchas;nuclearmeasurementinstrumentationanditscare;commonhazards;facilityreadinessandrequirementstosupporttheNDAequipment;projectscoping,requirementsandobjectives;assemblyanddeploymentoftheinstrument;calibrationandtest;computationalmodelingtoaugmentphysicaltesting;measurementvalidation;preventivemaintenance;andthemeasurementcontrolprogram.1.1ThisguideisacompendiumofQualityMeasurementPracticesforperformingm......
【中国标准分类号】:A20
【国际标准分类号】:27_120_30
【页数】:11P.;A4
【正文语种】:英语


【英文标准名称】:Gashurningwaterheatersfordomesticuse
【原文标准名称】:家用燃气热水器
【标准号】:JISS2109-2010R
【标准状态】:现行
【国别】:日本
【发布日期】:2010
【实施或试行日期】:2010-11-22
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:27_060_20;91_140_65
【页数】:80P.;A4
【正文语种】:英语