DIN EN 61047-2005 钨丝灯用直流或交流供电电子降压转换器.性能要求
作者:标准资料网 时间:2024-05-23 21:07:56 浏览:8982
来源:标准资料网
【英文标准名称】:DCorACsuppliedelectronicstep-downconvertorsforfilamentlamps-Performancerequirements(IEC61047:2004);GermanversionEN61047:2004
【原文标准名称】:钨丝灯用直流或交流供电电子降压转换器.性能要求
【标准号】:DINEN61047-2005
【标准状态】:现行
【国别】:德国
【发布日期】:2005-02
【实施或试行日期】:2005-02-01
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:附件;试验;镇流器;电子装置;规范(验收);效率;白炽灯;定义;电子设备及元件;操作;电气工程;直流电流;试验要求;照明工程;变压器;转炉(金属);照明系统;交流电流;灯;电灯;电子工程;卤素灯;卤钨灯
【英文主题词】:
【摘要】:
【中国标准分类号】:K41
【国际标准分类号】:29_140_99
【页数】:20P;A4
【正文语种】:德语
Product Code:SAE AIR1387
Title:Designing With Elastomers for Use At Low Temperatures, Near Or Below Glass Transition
Issuing Committee:Ams Ce Elastomers Committee
Scope:To ensure success in design of elastomeric parts for use at low temperature, the design engineer must understand the peculiar properties of rubber materials at these temperatures.There are no static applications of rubber. The Gaussian theory of rubber elasticity demonstrates that the elastic characteristic of rubber is due to approximately 15% internal energy and the balance, 85%, is entropy change. In other words, when an elastomer is deformed, the elastomer chain network is forced to rearrange its configuration thereby storing energy through entropy change. Thermodynamically, this means that rubber elasticity is time and temperature dependent (Reference 25).The purpose of this report is to provide guidance on low temperature properties of rubber with the terminology, test methods, and mathematical models applicable to rubber, and to present some practical experience. In this way, it is hoped that mistakes can be avoided, particularly in selection of rubber materials, enabling the design engineer to weigh low-temperature material properties together with the many other factors involved in the design process.【英文标准名称】:Acoustics-Noisefromshootingranges-Part4:Predictionofprojectilesound(ISO17201-4:2006);EnglishversionofDINENISO17201-4:2006-07
【原文标准名称】:声学.射程内噪声.第4部分:发射噪音预报(ISO17201-4:2006)
【标准号】:ENISO17201-4-2006
【标准状态】:现行
【国别】:
【发布日期】:2006-07
【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】:声震动;声学;评定;定义;数学计算;测量;测量技术;噪声辐射;噪声级;手枪;计划;来复枪射程;步枪;射击;射程;射击场地;轻武器;声能;声压级;声音传播;超声波速度;磨损量
【英文主题词】:Acousticshocks;Acoustics;Assessment;Definition;Definitions;Mathematicalcalculations;Measurement;Measuringtechniques;Noiseemissions;Noiselevel;Pistols;Planning;Rifleranges;Rifles;Shooting;Shootingranges;Shooting-grounds;Smallarms;Soundenergy;Soundpressurelevel;Soundpropagation;Supersonicvelocity;Wear-quantity
【摘要】:
【中国标准分类号】:Z32;Y55
【国际标准分类号】:17_140_20;95_020;97_220_10
【页数】:25P.;A4
【正文语种】:英语
