A-A-51314
Fire hazard. The light equipped with a 60 watt bulb, shall be adjusted so that the illumination is straight down. The light shall be turned on and the front of the reflector pushed, with at least 10 pounds of force, into direct contact with a cotton bedsheet placed on a firm mattress or pillow. (The pressure need not be maintained after initial application). A thermocouple shall be placed under the sheet within the circumference of the reflector. The light shall be left on for one hour, and the temperature shall be recorder at the end of the hour.
Leakage current. The light shall be tested in accordance with section 27 of UL544.
Sampling for test shall be conducted in accordance with MI-STD-105, and as indicated in table I. Acceptance level shall be zero for all sample sizes.
TABLE I. Sampling criteria for test.
|
Characteristics |
Inspection level |
AQL (defect per hundred units) |
|
Stability |
S-1 |
3.0 |
|
Dielectric strength |
II |
1.0 |
|
Polarity |
II |
1.0 |
|
Temperature |
S-1 |
1.0 |
|
Fire Hazard |
S-1 |
1.0 |
Examination. The light shall be examined to compliance with specified requirements. Examination shall be conducted in accordance with table II.
TABLE II. Classification of defects.
|
Categories |
Defects |
|
Major |
|
|
101 |
Component part missing. |
|
102 |
Any adjustment part fails to move easily. |
|
103 |
Component parts in assembled light cracked. Torn or ruptured. |
|
104 |
Enameled surfaces have unenameled or corroded areas. |
|
105 |
Ground wire not adequately secured to frame or enclosure. |
|
106 |
Interior of wire raceway, including joints, has burrs or sharp edges. |
|
107 |
Wire stain relief inadequate in any position of adjustment. |
|
108 |
Wire is strained at any joints, in the reflector, or any point of articulation. |
|
109 |
Underground conductor has insulation colored white, natural gray or green. |
|
Minor |
|
|
201 |
Assembled light exhibits dirt, oil, grease, chips or foreign matter. |
Sampling for examination. Sampling for examination shall be conducted in accordance with MIL-STD-105 and as indicated in table III.
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