ASTM D 924-1992 电绝缘液体的损耗因数(或功率因数)和介电常数(电容率)的测试方法
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来源:标准资料网
【英文标准名称】:TestMethodforDissipationFactor(orPowerFactor)andRelativePermittivity(DielectricConstant)ofElectricalInsulatingLiquids
【原文标准名称】:电绝缘液体的损耗因数(或功率因数)和介电常数(电容率)的测试方法
【标准号】:ASTMD924-1992
【标准状态】:作废
【国别】:美国
【发布日期】:1992
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;电绝缘;电绝缘材料;渗透率;损耗因数;电容率;绝缘;电气工程;绝缘液体
【英文主题词】:dissipationfactor;electricalinsulation;insulatingliquids;electricalengineering;electricalinsulatingmaterials;testing;permability;permittivity;insulations
【摘要】:
【中国标准分类号】:K15
【国际标准分类号】:29_040_20
【页数】:7P;A4
【正文语种】:英语
Product Code:SAE AMS5575
Title:Steel, Corrosion and Heat-Resistant, Welded Tubing 18Cr - 10.5Ni - 0.70Cb(Nb) (SAE 30347) Solution Heat Treated
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers a corrosion and heat-resistant steel in the form of welded tubing.Product Code:SAE AIR64
Title:Electrical and Electronic Equipment Cooling in Commercial Transports
Issuing Committee:Ac-9 Aircraft Environmental Systems Committee
Scope:This document considers the cooling of equipment installed in equipment centers, which usually consist of rack-mounted equipment and panel mounted equipment in the flight deck. In instances where these two locations result in different requirements, these are identified. For purposes of this document, the cooled equipment is referred to generally as E/E equipment, deonting that both electrical and electronic equipment is considered, or as an E/E equipment line-replaceable-unit (LRU). The majority of cooled equipment takes the form of LRUs. This document primarily relates to E/E equipment which is designed to use forced air cooling in order to maintain the equipment operating performance (within acceptable tolerances), and to maintain reliability. Cooling may be applied internally or externally to the case of the item of E/E equipment. There are also E/E equipment items which are cooled by natural convection, conduction, and radiation to the surrounding environment.Specification requirements, system design considerations, component design, and system testing are described. Also described are the analysis and test considerations for the thermal design of the avionic equipment. The discussion of supplementary cooling systems includes consideration of a refrigeration system. requirements, system design considerations, component design, and system testing are described. Also described are the analysis and test considerations for the thermal design of the avionic equipment. The discussion of supplementary cooling systems includes consideration of a refrigeration system.
