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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.

标准名称：	玉米收获机械 技术条件
中标分类：	农业、林业 >> 农、林机械与设备 >> 农机具
替代情况：	NJ 173-79;标准内容已被GB/T 21962-2008 涵盖。
发布部门：	中华人民共和国机械工业部
发布日期：	1993-06-04
实施日期：	1994-01-01
首发日期：	1900-01-01
作废日期：	2010-01-20
提出单位：	机械工业部中国农业机械化科学研究院
归口单位：	机械工业部中国农业机械化科学研究院
起草单位：	中国农业机械化科学研究院、黑龙江省农业机械试验鉴定站
起草人：	曹洪国、耿洪、李绍增、王立成
出版社：	机械工业出版社
出版日期：	1994-01-01
页数：	8页
批文号：	机械科[1993]240号

本标准规定了玉米收获机和玉米联合收获机的主要性能指标、技术要求、出厂试验与检验规则以及标志、包装、运输与贮存。本标准适用于悬挂式、牵引式和自走式玉米收获机。

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