NAVY MIL-P-28785 (2)-1973 POWER SUPPLY VARIABLE OUTPUT (0 TO 50 VOLTS)《可变输出(0到50 VOLTS)电源》.pdf

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1、. MIL-P-28785 (2) 58 m 9979906 OL548B5 7 - . - . . . _ . . T -, . . . . i . . _ . I . ._ . . . - . . . . . ._._. - . . . . ._.-. - . -. i I I , , . ., . , . -.-. - ., . . . ., . . * .-_ . . . -.-. 1 + . - . - .-.-I . i . 1 . _.- 1 h : . . ., . .- MIL-P-28785 (EC) Amendment 2 29 August 1973 SUPERSEDI

2、NG RS03 susceptibility test limits shall be in accordance with MIL-STD-461, except that over the frequency ranges 30-42 MHz and 132-150.8 Milz, the test field intensity shall be 100 volts/meter.“ 3.6.4: Delete and substitute: “3.6.4 Power drain. When tested in accordance with 4.5.2.1 the primary cur

3、rent to the power supply shall not exceed 6 amperes ac when operating under full load of 50 volts and 5 amperes.“ 3.6.5: Delete and substitute: “3.6.5 Line regulation. Line regulation shall be 0.01 percent +2 milli- volts (mV) with an ac line variation of 105 to 125 Vac when tested in accordance wit

4、h 4.5.2.5“ l/ CHANGES FROM PREVIOUS ISSUE. THE OUTSIDE MARGINS OF THIS DOCUMENT - HAVE BEEN MARICED ci#gi TO INDICATE WHERE CHANGES (DELETIONS, ADDITIONS, AND so FORTH) FROM THE PREVIOUS ISSUE HAVE BEEN MADE. THIS WS BEEN DONE AS A CONVENIENCE ONLY AND “HE GOVERNMENT ASSUMES NO LiABILITY WHATSOEVER

5、FOR ANY INACCURACIES IN TEESE NOTATIONS. TO EVALUATE THE REQUIREMENTS OF THIS DOCUMENT BASED ON THE ENTIRE CONTENTS AS WRITTEN IRRESPECTIVE OF THE MARGINAL NOTATIONS AND RELATIONSHIP TO TEE LAST PREVIOUS ISSUE. BIDDERS AND CONTRACTORS ARE CAUTIONED . . “ . . -a. = . . -. -_ - . . _-. MIL-P-28785 (EC

6、) . AMENDMENT 2 . . . . - . . . . Page 4 . . , . = . 3.7.1.2, item (g): “(g). her-voltage indicator. light - The over-voltage indicator .light Delete and substitute: shall light when the output voltage exceeds the voltage setting by one.volt. Page 8 . . _ _-._. -.- . . Add new paragraph 4.5.1.4: . .

7、 . . “4.5.1.4 Electroukgnetic compatibility test. Compliance with -the require- ments of 3.5.4 shall be verified by test performed in accordance with MIL-STD-462.“ * . 1 . “. . . I . ._._. . . , . -_ ._ 4.5.2;l; third sentence: Delete and substitute: ,i “Attach a voltmeter and ammeter of suitable ac

8、curacy to establish conformance L:-x.z:z:2: . I. ._.-. to 3.6.4 to output terminals. . # 4.5.2.2, first sentence: Delete “Using a voltmeter having an accuracy . . . i . of 112 percent and substitute “Using a voltmeter and ammeter of suitable . accuracy to estatlish conformance to 3.6.8,“ . . # 4.5.2

9、.6, lines 3 and 4: Delete “112 percent accuracykter.“ and . . . ._- : _I 4.5.2.5, line 2: Delete “having an accuracy of 112 percent .ani . # substitute “and ammeter of suitable accuracy to establish confo-rpnce. to 3.6.5“ * . . .: -. . . I. , . .- . substitute “a voltmeter of suitable accuracy to es

10、tablish conformance to ,. . . 3.6.6. I .I _. -. . . -. Preparing activity: . Navy - EC . (Project 5820-N623) . i. .- . . . . L . . ,. ,. , . _ . I . *.* , - . . ). -. t-.- _-. ,. & ) . . . ,. . . . . L. . . . , I: . . . -. -_-I-._ -., . ._ . 1 F I . . b: . . I._ . . . . b: . _. . . . - - . .- _- . . I- . . _. I_. . . , . . . . . . . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-