A vented, rechargeable nickel cadmium aircraft batteries and cells and harnesses used therein.

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MIL-PRF-49450B(CR)

3.6.3 Electrolyte leakage. The battery and cells shall show no evidence of electrolyte

leakage during the performance of any of the tests specified in Section 4. Venting of gasses

containing entrained electrolyte is permitted during charge.

3.6.4 Operating position. The battery shall be capable of operating in an inverted

position without loss of any electrolyte from the cells. The cells shall be capable of operating in

an inverted position without loss of electrolyte.

3.6.5 Insulation. All current carrying parts shall be insulated from the battery container.

The insulation resistance between any current carrying part and the battery container shall be

above one greater than one megohm.

3.6.6 Potting. Compounds used for potting shall not support flame, absorb moisture, or

be damaged by battery electrolyte. When mixed in the ration specified by the manufacturer, the

product shall cure at a temperature less than 130 degrees Celsius (�C). The components,

individually or when mixed, shall have no adverse effect on the health of personnel when used

for its intended purpose. The packaged components shall be free from all foreign substances,

such as grit, dirt, oil, and water. The components shall show no gel particles, ingredient lumps,

or agglomerates. Asbestos shall not be used in the product formulation. The components shall

be free of nonreactive, volatile solvents.

3.6.7 Wiring and electrical connections. Wiring shall reveal no readily visible cracks in

the insulation when visually examined. Specimens shall reveal no delaminating of the insulation,

no exudation of the insulation throughout the braid in constructions incorporating braids, and no

visible defects in any of the wire component parts (slight discoloration after aging is considered

normal and acceptable). All electrical connections shall be potted per 3.6.6.

4. VERIFICATION.

4.1. Classification of inspections. The inspection requirements specified herein are

classified as follows:

a. First article inspection (see 4.2).

b. Conformance inspection (see 4.3).