MIL-D-81950

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MIL-D-81950, MILITARY SPECIFICATION DESIGN AND EVALUATION OF SIGNAL TRANSMISSION SUBSYSTEMS, GENERAL SPECIFICATION FOR (24 SEP 1974)., This specification covers the general requirements for design and establishes uniform methods for testing signal transmission subsystems. For purposes of this specification, a signal transmission subsystem (STS) includes the energy source(s) and output control function devices, and is composed of the following components: cartridges, electric initiators, cartridge actuated devices (CAD's), transmission lines, and other associated equipment (see 6.3.2). The transmission lines (hose/tubing, detonating cord, electrical,deflagrating cord, optical, etc.) provide the means for routing a signal(s) between STS components.
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【英文标准名称】:StandardSpecificationforConcentric-Lay-StrandedCopperConductors,Hard,Medium-Hard,orSoft
【原文标准名称】:硬的,中等硬的或软的同心绞捻铜导线标准规格
【标准号】:ASTMB8-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【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】:B01.04
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:concentric-lay-strandedcopperconductors;concentric-lay-strandedhard;copperconductors;copperconductorsforelectricalpurposes;medium-hard;orsoftcopperconductors;Concentric-lay-strandedcopperelectricalconductors;Leadalloy-coatedcopper
【摘要】:1.1Thisspecificationcoversbareconcentric-lay-strandedconductorsmadefromroundcopperwires,eitheruncoatedorcoatedwithtin,lead,orleadalloyforgeneraluseforelectricalpurposes.Theseconductorsshallbeconstructedwithacentralcoresurroundedbyoneormorelayersofhelicallylaidwires.Note18212;Thisspecificationalsopermitsconductorsforuseascoveredorinsulatedelectricalconductors.Note28212;Sealedconductors,thatareintendedtopreventlongitudinalwaterpropagationandarefurthercovered/insulated,arealsopermittedwithintheguidelinesofthisspecification.1.2Forthepurposesofthisspecification,conductorsareclassifiedasfollows(ExplanatoryNote1andNote2):1.2.1ClassAA8212;Forbareconductorsusuallyusedinoverheadlines.1.2.2ClassA8212;Forconductorstobecoveredwithweather-resistant(weather-proof),slow-burningmaterials,andforbareconductorswheregreaterflexibilitythanisaffordedbyClassAAisrequired.1.2.3ClassB8212;Forconductorstobeinsulatedwithvariousmaterialssuchasrubber,paper,varnishedcloth,andsoforth,andfortheconductorsindicatedunderClassAwheregreaterflexibilityisrequired.1.2.4ClassCandClassD8212;ForconductorswheregreaterflexibilityisrequiredthanisprovidedbyClassBconductors.1.3TheSIvaluesfordensityareregardedasthestandard.Forallotherproperties,theinch-poundvaluesaretoberegardedasstandardandtheSIunitsmaybeapproximate.
【中国标准分类号】:
【国际标准分类号】:29_060_20
【页数】:7P.;A4
【正文语种】:


【英文标准名称】:Productsandsystemsfortheprotectionandrepairofconcretestructures-Testmethod;Determinationofthermalcompatibility-Part4:Drythermalcycling;GermanVersionEN13687-4:2002
【原文标准名称】:混凝土结构防护和维修用产品和设备.试验方法.热适应性测定.第4部分:干热循环试验
【标准号】:EN13687-4-2002
【标准状态】:现行
【国别】:
【发布日期】:2002-05
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:温度变化;试验;混凝土构件;混凝土;测定;测量;结构;钢筋;保护(装置);混凝土结构;检修;防护设备;表面防护;干热试验;保护系统;热应力;温度承受能力;温度冲击;热试验;分析;保护剂;温度特性
【英文主题词】:Analysis;Changesoftemperature;Concretecomponents;Concretestructures;Concretes;Determination;Dry-heattests;Measurement;Protectingagents;Protection;Protectionsystems;Protectiveequipment;Reinforcingsteels;Repair;Structures;Surfaceprotection;Temperaturebehaviour;Temperatureloadability;Temperatureshock;Testing;Thermalstress;Thermaltest
【摘要】:
【中国标准分类号】:P25
【国际标准分类号】:91_080_40
【页数】:9P.;A4
【正文语种】:英语