5.8.1 Installing the Test Item in Test Facility
Unless otherwise specified, install the test item in the test facility in a manner that will simulate service use to the maximum extent practical, with test connections made and instrumentation attached as necessary.
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a. To test the effectiveness of protective devices, ensure plugs, covers, and inspection plates used in servicing are in whatever position is appropriate for the test and in their normal (protected or unprotected) mode during operation.
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b. Make electrical and mechanical connections normally used in service, but not required for the test being performed (e.g., tests of items not running) with dummy connectors installed (connected and protected as in field/fleet use) so that all portions of the test item will receive a realistic test.
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c. If the item to be tested consists of several individual units, these units may be tested separately, provided the functional aspects are maintained as defined in the requirement’s document. If units are being tested together and the mechanical, electrical, and radio frequency (RF) interfaces permit, position units at least 15cm (6 inches) from each other or from the test chamber surfaces to allow for realistic air circulation.
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d. Protect test items from unrelated environmental contaminants.
5.8.2 Test Item Operation
Operate the test item in the most representative operating modes (from performance and thermal standpoints) using duty cycles and durations that represent service use as documented in the mission profile. Operational testing should be considered during each of the test Methods within this standard. Prior to conducting operational testing, a sequence of events, number of cycles, and duration of events should be documented in the test plan. In addition to the items noted in Part One, paragraph 5.1c, abnormal or emergency voltage ranges should be considered for equipment required for safety of personnel.