AIR64B Electrical and Electronic Equipment Cooling in Commercial Transports

Reaffirmed

01/20/2010

Features
Issuing Committee
Scope
Content
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, denoting 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 within acceptable environmental limits, in order to maintain 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.
Meta TagsDetails
DOI
https://doi.org/10.4271/AIR64B
Pages
32
Citation
SAE International Information Report, Electrical and Electronic Equipment Cooling in Commercial Transports, SAE Standard AIR64B, Reaffirmed January 2010, Revised September 1992, Issued December 1956, https://doi.org/10.4271/AIR64B.
Additional Details
Publisher
Published
Jan 20, 2010
Product Code
AIR64B
Content Type
Information Report
Status
Reaffirmed
Language
English

Revisions