ASTM-F2490 › Historical Revision Information
Standard Guide for Aircraft Electrical Load and Power Source Capacity Analysis
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Scope
1.1 This guide covers how to prepare an electrical load analysis (ELA) to meet Federal Aviation Administration (FAA) requirements.
1.2 The values given in SI units are to be regarded as the standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Significance and Use
4.3 The primary purpose of the electrical load analysis (ELA) is to determine electrical system capacity (including generating sources, converters, contactors, bus bars, and so forth) needed to supply the worst-case combinations of electrical loads. This is achieved by evaluating the average demand and maximum demands under all applicable flight conditions. A summary can then be used to relate the ELA to the system capacity and can establish the adequacy of the power sources under normal, abnormal, and emergency conditions.
4.4 The ELA that is produced for aircraft-type certification should be used as the baseline document for any subsequent changes. When possible, the basic format of the original ELA should be followed to ensure consistency in the methodology and approach.
4.5 The original ELA may be lacking in certain information, for instance, time available on emergency battery. It may be necessary to update the ELA using the guidance material contained in this guide.
Keywords
ELA; electrical load; electrical load analysis; FAA; Federal Aviation Administration; ICS Number Code 49.060 (Aerospace electric equipment and systems)
To find similar documents by ASTM Volume:
15.09 (Paper; Business Imaging Products)
To find similar documents by classification:
49.060 (Aerospace electric equipment and systems Including Avionics)
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Document Number
ASTM-F2490-05(2013)
Revision Level
2005 R13 EDITION
Status
Superseded
Modification Type
Reapproval
Publication Date
Sept. 1, 2013
Document Type
Guide
Page Count
8 pages
Committee Number
F39.01