ISO 3-1973 优先数优先数系

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【英文标准名称】:Preferrednumbers;Seriesofpreferrednumbers
【原文标准名称】:优先数优先数系
【标准号】:ISO3-1973
【标准状态】:现行
【国别】:国际
【发布日期】:1973-04
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC19
【标准类型】:()
【标准水平】:()
【中文主题词】:优先数
【英文主题词】:Basicseries;Grading;Preferrednumbers
【摘要】:Preferrednumbersaretheconventionallyroundedoftermvaluesofgeometricalseries,includingtheintegralpowersof10andhavingasratiosspecialfactorsinaccordancewiththespecifiedtables.Basic,expectional,R80andderivedseriesaredesignated.
【中国标准分类号】:A20
【国际标准分类号】:17_020
【页数】:4P.;A4
【正文语种】:英语


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MIL-E-917E, MILITARY SPECIFICATION: ELECTRIC POWER EQUIPMENT BASIC REQUIREMENTS (06 AUG 1993)., This specification covers the basic requirements applicable to the design, materials, and construction of Naval shipboard electric power equipment (exclusive of communication equipment, fire control equipment, and electronic equipment, other than that used in electric power applications). Only one classification of equipment is covered by this specification.【英文标准名称】:High-voltageswitchgearandcontrolgear-Gas-insulatedmetal-enclosedswitchgearforratedvoltagesabove52kV
【原文标准名称】:高压开关设备和控制设备.额定电压高于52KV的气体绝缘金属封闭式开关设备
【标准号】:BSEN62271-203-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-05-12
【实施或试行日期】:2004-05-12
【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】:
【英文主题词】:ACswitchgearandcontrolgear;Definition;Definitions;Dimensioning;Electricalengineering;EMC;Energydistribution;Gasinsulation;Gases;Gas-insulated;Highvoltage;High-voltageequipment;High-voltageswitchgear;High-voltageswitchgears;Insulatinggases;Insulations;Metalenclosures;Operatingconditions;Properties;Qualificationtests;Ratedvoltage;Ratedvoltages;Routinechecktests;Specification(approval);Switchgear;Switchgears;Testing
【摘要】:Thisstandardspecifiesrequirementsforgas-insulated,metal-enclosedswitchgearinwhichtheinsulationisobtained,atleastpartly,byaninsulatinggasotherthanairatatmosphericpressure,foralternatingcurrentofratedvoltagesabove52kV,forindoorandoutdoorinstallation,andforservicefrequenciesuptoandincluding60Hz.Forthepurposeofthisstandard,theterms"GIS"and"switchgear"areusedfor"gas-insulatedmetal-enclosedswitchgear".Thegas-insulatedmetal-enclosedswitchgearcoveredbythisstandardconsistsofindividualcomponentsintendedtobedirectlyconnectedtogetherandabletooperateonlyinthismanner.Thisstandardcompletesandamends,ifnecessary,thevariousrelevantstandardsapplyingtotheindividualcomponentsconstitutingGIS.
【中国标准分类号】:K43
【国际标准分类号】:29_130_10
【页数】:79P.;A4
【正文语种】:英语