Temperature Variation

RTCA DO-160 – Section 5.0 – Temperature Variation

 

This test determines performance characteristics of the equipment during temperature variations between high and low operating temperature extremes.

 

Note: The test is not intended to verify the behavior of the equipment in wet or icing conditions. In conducting this test, the test chamber may incorporate the capability of controlling or altering humidity to the extent that condensation is minimized or does not occur.

 

The rates applicable to the temperature variation procedures defined in Subsection 5.3 are
as follows:
Category A – For equipment external to the aircraft or internal to the aircraft: 10 degrees Celsius minimum per minute.
Category B – For equipment in a non-temperature-controlled or partially temperature
controlled internal section of the aircraft: 5 degrees Celsius minimum per minute.
Category C – For equipment in a temperature-controlled internal section of the aircraft: 2 degrees Celsius minimum per minute.
Category S1 – For equipment external to the aircraft or internal to the aircraft: known rate of change greater than 10 degrees Celsius per minute. The rate of change shall be noted in the Qualification Form.
Category S2 – For equipment external to the aircraft or internal to the aircraft: unknown rate of change greater than 10 degrees Celsius per minute.

 

DO-160 is a standard for environmental test on avionics equipment published by RTCA, the Radio Technical Commission for Aeronautics. The DO 160 G was amended and now all guideline inside it are replaced by the DO 357.
On our website you can find only some abstracts of the document, for the full text of the guideline you have to purchased it from RTCA.
We remember you that now DO 160 G cannot be read without DO 357.
If you need any interpretation regarding the text of such standard, please contact CELAB.
CELAB is the only Italian (and one of the few European) member of the RTCA Special Committee 135, the commettee for devolpment of DO 160 G.

 

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