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    ARMY MIL-PRF-49450 B (1)-2002 BATTERY RECHARGEABLE NICKEL-CADMIUM VENTED AIRCRAFT《镍镉飞机接口接充电电池》.pdf

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    ARMY MIL-PRF-49450 B (1)-2002 BATTERY RECHARGEABLE NICKEL-CADMIUM VENTED AIRCRAFT《镍镉飞机接口接充电电池》.pdf

    1、 INCH-POUND MIL-PRF-49450B (CR) AMENDMENT 1 6 March 2002 PERFORMANCE SPECIFICATION BATTERY, RECHARGEABLE, NICKEL-CADMIUM, VENTED, AIRCRAFT. This amendment forms a part of MIL-PRF-49450B (CR), dated 10 March 2000, and is approved for use by the Communications and Electronics Command, Department of th

    2、e Army and is available for use by all Department and Agencies of the Department of Defense. PAGE 15 Paragraph 4.3.4 Group B inspection. Delete the first sentence and replace with the following 2 sentences: “4.3.4 Group B inspection. Group B inspection shall conform to Table V. Sampling for Group B

    3、inspection shall be per Table VII.” AMSC N/A 1 of 2 FSC 6140 DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license f

    4、rom IHS-,-,-MIL-PRF-49450B AMENDMENT 1 PAGE 16 Table V: Delete and substitute: “TABLE V. Group B Inspection. Test Requirement Paragraph Inspection Paragraph Subgroup I Dimension and weight 3.1 4.5.7 Container body to Container Cover 3.4.1.1 4.5.8Internal pressure 3.4, 3.4.2.4 4.5.19 Vent Plug Test 3

    5、.4.2.5 4.5.4 Capacity (Initial) 3.6.1, 3.6.3, 3.4.9 4.5.10.1 Subgroup II High Rate Discharge, Low Temperature 3.6.1, 3.6.2 4.5.17 High Rate Discharge Operating Position 3.6.1, 3.6.4 4.5.18 NOTES: 1/ Not applicable to cell procurements. 2/ For battery or battery plus components, test four cells and l

    6、ow capacity cell per battery sample. For separate cell procurements, test four cells per cell group” PAGE 21 4.5.12 Delete and substitute: “4.5.12 Mechanical shock. The battery shall be charged per 4.4.1.2.1 and then subjected to a mechanical shock test per procedure I, method 516.5 of MIL-STD-810.

    7、The test sample shall be mounted and shocked in the normal upright position. During test, the open circuit voltage shall be monitored. The battery shall conform to the requirements of 3.6.2.” 4.5.16 Delete and substitute: “4.5.16 Humidity and charge retention. The battery shall be charged per 4.4.1.

    8、2.1 and then subjected to the humidity test per method 507.4 of MIL-STD-810. The battery case air vents shall be positioned where the axis of the vents is parallel to the chamber airflow. Upon completion, accumulated water may be removed from the battery. The battery shall be discharged at the rate

    9、specified by the applicable specification sheet to the specified cut-off voltage and shall meet the requirements of 3.6.1 and 3.6.2.” Custodian Preparing Activity:Army - CR Army - CR (Project 6140-A394) 2Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-


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