NF C32-213/A11-2003 便携式接地和短路设备用电缆
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来源:标准资料网
【英文标准名称】:Cablesforportableearthingandshort-circuitingequipment.
【原文标准名称】:便携式接地和短路设备用电缆
【标准号】:NFC32-213/A11-2003
【标准状态】:现行
【国别】:法国
【发布日期】:2003-06-01
【实施或试行日期】:2003-06-05
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:接地端子;绝缘覆层;短路装置;易动的;柔性;接地线;接地装置;电缆;规范(验收);绝缘线;电气工程
【英文主题词】:Cables;Definition;Definitions;Devicesforearthing;Earthing;Earthingdevices;Earthingterminals;Earthingwires;Electriccables;Electricalcords;Electricalengineering;Electricalequipment;Ethylene-propylenerubber;Flexible;Instructionsforuse;Insulatedcables;Insulatedcords;Insulatingcoverings;Lowvoltage;Low-voltageinstallations;Marking;Mobile;Polyvinylchloride;Portable;Short-circuitingdevices;Specification(approval);Testing
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:29_060_20;29_240_01
【页数】:6P.;A4
【正文语种】:其他
基本信息
| 标准名称： | 钢管涂塑质量要求 |
| 中标分类： |
|
| 替代情况： | 被CB/T 3366-1998代替 |
| 发布日期： | 1994-04-11 |
| 实施日期： | 1994-10-01 |
| 首发日期： | |
| 作废日期： | 1998-08-01 |
| 起草单位： | 中国船舶工业总公司603所 |
| 出版日期： | |
| 页数： | 7页 |
适用范围
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前言
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目录
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引用标准
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所属分类：
【英文标准名称】:StandardPracticeforDeterminingResistanceofSyntheticPolymericMaterialstoFungi
【原文标准名称】:合成聚合材料防霉性的测定
【标准号】:ASTMG21-1996(2002)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:G03.04
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:电阻器;塑料;持久性;非金属;霉菌;材料;高聚物;耐力;测定
【英文主题词】:fungalbiosusceptability;fungaldecay;microbiologicalassay;microbiologicalsusceptability
【摘要】:Thesyntheticpolymerportionofthesematerialsisusuallyfungus-resistantinthatitdoesnotserveasacarbonsourceforthegrowthoffungi.Itisgenerallytheothercomponents,suchasplasticizers,cellulosics,lubricants,stabilizers,andcolorants,thatareresponsibleforfungusattackonplasticmaterials.Itisimportanttoestablishtheresistancetomicrobialattackunderconditionsfavorableforsuchattack,namely,atemperatureof2to38x00B0;C(35to100x00B0;F)andarelativehumidityof60to100%.Theeffectstobeexpectedareasfollows:4.2.1Surfaceattack,discoloration,lossoftransmission(optical),and4.2.2Removalofsusceptibleplasticizers,modifiers,andlubricants,resultinginincreasedmodulus(stiffness),changesinweight,dimensions,andotherphysicalproperties,anddeteriorationofelectricalpropertiessuchasinsulationresistance,dielectricconstant,powerfactor,anddielectricstrength.OftenthechangesinelectricalpropertiesaredueprincipallytosurfacegrowthanditsassociatedmoistureandtopHchangescausedbyexcretedmetabolicproducts.Othereffectsincludepreferentialgrowthscausedbynonuniformdispersionofplasticizers,lubricants,andotherprocessingadditives.Attackonthesematerialsoftenleavesionizedconductingpaths.Pronouncedphysicalchangesareobservedonproductsinfilmformorascoatings,wheretheratioofsurfacetovolumeishigh,andwherenutrientmaterialssuchasplasticizersandlubricantscontinuetodiffusetothesurfaceastheyareutilizedbytheorganisms.Sinceattackbyorganismsinvolvesalargeelementofchanceduetolocalaccelerationsandinhibitions,theorderofreproducibilitymayberatherlow.Toensurethatestimatesofbehaviorarenottoooptimistic,thegreatestobserveddegreeofdeteriorationshouldbereported.Conditioningofthespecimens,suchasexposuretoleaching,weathering,heattreatment,etc.,mayhavesignificanteffectsontheresistancetofungi.Determinationoftheseeffectsisnotcoveredinthispractice.1.1Thispracticecoversdeterminationoftheeffectoffungionthepropertiesofsyntheticpolymericmaterialsintheformofmoldedandfabricatedarticles,tubes,rods,sheets,andfilmmaterials.Changesinoptical,mechanical,andelectricalpropertiesmaybedeterminedbytheapplicableASTMmethods.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundunitsgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:83_080_01
【页数】:5P.;A4
【正文语种】:
