The Control of Excess Humidity in Avionics Cooling

Standard:
Reaffirmed:
  • 2003-10-31
 
  • HISTORICAL Access the latest revision: ARP987B
Publisher:
  • SAE International
Pages:
19
Scope:

The purpose of this document is threefold: (1) to review the problem of moisture in avionics equipment, (2) to outline methods for correcting conditions of excess moisture in existing avionics installations, and (3) to recommend design practices for new avionics cooling system installations which will minimize the adverse effects of moisture.

The problem of moisture in avionics has been brought into focus by the widespread use of air cycle refrigeration in forced-cooled "black-boxes," and by the lack of recognition of the moisture sensitivity of most avionic circuitry.

This document does not relieve the avionics designer of his obligation to meet any other humidity requirements which may be applicable to the avionics. Because the air conditioning system is inoperative when the aircraft is parked or stored, the aircraft and its equipment must withstand the effects of the outdoor environment (e.g., humidity, fog, rain, and surface condensation).

History:
Standard Published Revision Status
ARP987B 2015-10-16 Latest Reaffirmed
2003-10-31 Historical Reaffirmed
1970-03-01 Historical Issued
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$76.00
Add
Mail
$76.00
Members save up to 18% off list price.
Grade
If you are currently using this technical report:
Share
HTML for Linking to Page
Page URL

Related Items

Training / Education
2013-02-20
Training / Education
2017-11-01
Training / Education
2017-10-27
Technical Paper / Journal Article
2011-04-12