基本信息
| 标准名称： | 电子级水中细菌总数的滤膜培养测试方法 |
| 中标分类： |
电子元器件与信息技术 >>
电子设备专用材料、零件、结构件 >>
电子技术专用材料 |
| 替代情况： | 被GB/T 11446.10-1997代替 |
| 发布日期： | |
| 实施日期： | 1990-03-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 3页 |
适用范围
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前言
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引用标准
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所属分类： 电子元器件与信息技术 电子设备专用材料 零件 结构件 电子技术专用材料
【英文标准名称】:Electriccables-Thermosettinginsulated,armoured,fire-resistantcablesofratedvoltage600/1000V,havinglowemissionofsmokeandcorrosivegaseswhenaffectedbyfire-Specification
【原文标准名称】:电缆.受火影响时排放少量烟和腐蚀气体的600/1000V热固绝缘铠装耐火电缆.规范
【标准号】:BS7846-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-09-30
【实施或试行日期】:2009-09-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:铠装电缆;分类系统;电缆线;电绝缘;排放;耐火性;防火安全性;建筑物防火;燃烧试验;耐火材料;气体;等级(质量);绝缘电缆;机械测试;多芯电缆;性能测试;额定电压;烟;热固性聚合物
【英文主题词】:Armouredcables;Classificationsystems;Electriccables;Electricalinsulation;Emission;Fireresistance;Firesafety;Firesafetyinbuildings;Firetests;Fire-resistantmaterials;Gases;Grades(quality);Insulatedcables;Mechanicaltesting;Multicorecables;Performancetesting;Ratedvoltage;Smoke;Thermosettingpolymers
【摘要】:ThisBritishStandardspecifiesrequirementsforconstructionandperformance,anddescribesmethodsoftest,forarmoured,fire?resistantcableswiththermosettinginsulationandofratedvoltage600/1000Vandlowemissionofsmokeandcorrosivegaseswhenaffectedbyfire.Thecircuitintegrityperformanceunderfireconditionsisassessedonthebasisofvarioustestswhicheitherseparatelymeasureresistancetofire,resistancetofirewithwaterspray,andresistancetofirewithmechanicalshock(CategoryF2)orincombinationmeasureresistancetofirewithdirectmechanicalimpactandwaterjet(CategoriesF30,F60andF120).Cablesspecifiedinthisstandardareintendedforuseinfixedinstallationsinindustrialareas,buildingsandsimilarapplications,wheremaintenanceofpowersupplyduringafireisrequiredforadefinedperiodoftime.NOTE1Attentionisdrawntothefactthattheabilityofagivencabletomeetaparticularcategoryinthisstandardrefersonlytothetestconditionsstated,andthelevelofperformanceachievedinaparticularinstallationcanbeinfluencedbyactualinstallationconditions.CablescoveredbythisstandardhavelimitedevolutionofsmokeandcorrosivegaseswhenassessedunderthefireconditionsasspecifiedinBSEN61034-2andBSEN50267-2-1.Inthisstandard,thelevelofcorrosive(andacid)gasesisdeterminedbymeasurementofhydrochloricacid(HCl)inaccordancewithBSEN50267-2-1.Theinsulationandothercomponentsaresuitabletopermitoperationofthecablesatamaximumsustainedconductortemperatureof90°Candforamaximumshort-circuitconductortemperatureof250°C.NOTE2Limitationonthetemperatureofthecablesmaybeimposedinsituationswheretheymaybetouched.NOTE3Duetotherelativelyhighconductortemperature,thereisariskofdryingoutthesurroundingsoilcausinganincreaseinthermalresistivitywhichinturnwouldleadtothecabletemperaturerisingtoahighervaluethananticipated.Forcablelaiddirectlyintheground,asuitablede-ratingfactorshouldbeappliedoralowermaximumsustainedconductoroperatingtemperatureshouldbeassumedtotakeintoaccountthepossibleeffectsofsoildryingout.NOTE4Ininstallationswhichincludecablejointsandterminations,theperformanceoftheseaccessoriesshouldbetakenintoaccountindecidingthemaximumoperatingtemperatureofthecable.Thecablesspecifiedinthestandardareeithersteelwirearmouredorinterlockedsteeltapearmouredandsheathed,asfollows:a)two-,three-,four-andfive-corestrandedcopperconductor;b)multicoreauxiliarystrandedcopperconductor.AnnexAgivesrecommendationsfortheselectionandoperationofcableswhilerecommendationsfortheinstallationofcablesaregiveninAnnexB.AnnexCliststheinformationthatshouldbegivenwithanenquiryororder.
【中国标准分类号】:K13
【国际标准分类号】:29_060_20
【页数】:56P.;A4
【正文语种】:英语