1、VIL-H-43895B INT AMD 2 73 m 999990b LLb5334 3Tb m MIL-H-43895B INT. AMENDMENT 2(SH) 18 August 1992 USED IN LIEU OF AMENDMENT 1 21 March 1988 MI LI IARY SPEC: 1 F IUT ION HEATERS, Hen WATER EjWlEH, ELECTRlC; SINK, SANITIZING This amendment forms a part of Military Specification MIL-H-43895B. dated 24
2、 June 1986, and is approved for use by all Departments and Agencies of the Department of Defense. PAGE 2 2.1, under “Standards/Military“: add the following: “YIL-STD-167/1 - Mechanical Vibration of Shipboard Equipnent Type I- Environmental and Type II - Internally Excited. MIL-STD-461 - Electromagne
3、tic Emission and Susceptibility Requirements for the Control of Electromagnetic Interference. MIL-STD-462 - Electromagnetic Interference Characteristics, Measurerent of M1L-STD-1472 - Human Engineering Design Criteria for Military Systems, Equipment and Facilities.“ PAGE 3 Add the following new para
4、graph: “3.1.1 Human Factors Criteria (for Navy use only). Human factors engineering criteria, principles and practices, as defined in MIL-STD-1472, shall be incorporated into the design of the hot water booster heaters. The equipment shall be designed such that all maintenance and operational tasks
5、shall permit safe and efficient performance by the 5th percentile female through the 95th percentile rale as defined in MIL-STD-1472. Particular attention shall be given to the ease of access for the removal and replacement of the heating elements. All controls, valves, gauges, and indicator lights
6、shall be selected and integrated into the design of the heaters so as to meet the application requirements of MIL-STD-1472 and be clearly and appropriately labeled to identify function. Warning plates, where specified shall have a white inscription on a red background and shall clearly identify the
7、hazard at hand. The clearance or free area required around an item shall permit an individual with the applicable 5th to 95th percentile body dimensions and physical capabilities as defined in MIL-STD-1472, to safely operate, maintain, remove or replace that item. When establishing accessibility req
8、uirements, both physical and visual access must be provided, along with access for any tools, test equipment needed and parts replacement. While inspecting for defects and performing tests, the equipment shall adhere to the human factors engineering considerations listed herein.“ 1 of 4 AMSC NIA FSC
9、 7320 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-438758 INT AMD 2 73 999990b 3365335 232 = MIL-H-43895B INT. AMENDMENT 2(SH) PAGE 3 3.4, line 10, after “long
10、“: add “8“. PAGE 5 3.4.3.3.1, line 2: Delete “yellow“ and substitute “green“. PAGE 6 Add the following new paragraph8 ;Y “3.6.2 High voltage labels. When specified for shipboard use (see 6.21, a Danger High Voltage label shall be affixed to the equipments outer case assembly, on or adjacent to each
11、service access cover and adjacent to one of the fasteners which secures the cover. A high voltage warning label shall also be placed near the high voltage components inside the equipment. The label shall include but is not limited to the following warnings8 a. A warning of high voltage. b. Power sup
12、ply must be disconnected before using. c. Access covers must be in place during use. d. Servicing should be done by authorized individuals.“ PAGE 7 Add the following new paragraphs: “3.9 Environmerital suitability. When specified for shipboard use (see 6.2), hot water booster heaters shall be capabl
13、e of withstanding ships vibration and motion. Controls, switches, moving parts and electrical circuits shall operate under shipboard conditions without malfunction, binding, excessive looseness, or damage when tested as specified in 4.4.2. 3.10 Electromagnetic compatibility. When specified (see 6.21
14、, the units shall be designed and equipped for electromagnetic compatibility in accordance with the requirements of MIL-STD-461, class A4 for surface ships and class A5 for submarines. The equipment shall meet the emission and susceptibility requirements for CEO1, CE03, and RE02. (see 4.4.3).“ PAGE
15、9 4.2.4, line 1, after “4.4.1“ Add , and when required for shipboard use, 4.4.2 and 4.4.3“. line 5, after “4.4.1“: Add “, and when applicable 4.4.2 and 4.4.3“. PAGE 10 4.4.1, last line on the page: Delete “yellow“ and substitute “green“. 2 Provided by IHSNot for ResaleNo reproduction or networking p
16、ermitted without license from IHS-,-,-MIL-H-43895B INT AMD 2 73 999990b LLb533b 3179 MIL-H-43895B INT. AMENDMENT 2(SH) PAGE 11 Add the following new paragraphs: “4.4.2 ShiDboard environmental tests. The following tests are required for hot water booster heaters for shipboard use. Failure to operate
17、satisfactorily during or at the conclusion of the tests, or evidence of breakage or excessive looseness of parts shall constitute failure of the test. (a) Inclined test. The hot water booster heater shall be attached to a sink and shall be operated with the sink inclined at an angle of 15 degrees ea
18、ch side of the vertical in each of two vertical planes at right angles to each other. The sink shall be filled and heater energized to heat water to a minimum of 180oF. The heater shall be operated for 30 minutes in each inclined direction. The temperature shall be monitored to determine conformance
19、 to the requirements of 3.4.3.5. The sink and waste collector reservoir shall then be drained. The waste reservoir discharge valve, operating handle, indicator lights and empty reservoir cutout shall be checked for proper operation and conformance to 3.4.2.1, 3.4.3.2.1. and 3.4.3.3.1. . Observations
20、 shall be made to determine conformance with leak tightness requireients of 3.4. Failure to meet these requirements shall constitute failure of the test. (b) Vibration test. The hot water booster heater shall be attached to a sink in accordance with manufacturers instructions. The sink shall be fill
21、ed with water and the heater, under normal operating conditions, shall be tested in accordance with requirements for YIL-STD-167/1, Type I equipment. Failure of the heater to perform its function during and after testing shall constitute failure of this test. 4.4.3 Electromametic Interference Tests.
22、 When required, the unit shall be tested by the contractor in accordance with test methods CEO1, CE03 and E02 of MIL-STD-462. The contractor shall furnish mitten certification that the equipment meets MIL-STD-461 requirements. Nonconformance with requirements specified shall constitute failure of th
23、is test.“ PAGE 12 6.2d Delete “and 3.7“ and substitute “,3.7, 3.9 and 3.10“. “6.4 Technical manuals. The requirement for technical manuals should be considered when this document is cited on a contract. If technical manuals are required, a contract exhibit must be prepared to fully describe statemen
24、t of work criteria and delivery instructions, and cite the applicable technical manual. The technical manuals must be acquired by separate Contract Line Item Nuiber (CLIN) in the contract.“ 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-4389
25、5B INT AMD 2 73 999990b LLb5337 005 m MIL-H-43895B INT. AMENDMENT 2(SH) “The margins of this amendment are marked with an asterisk or vertical lines to indicate where changes (additions. modifications, corrections, deletions) from the previous amendment were made. This was done as a convenience only
26、 and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous amendent.“ Preparing Activity: Navy - SH (Project No. 7320-N896 1 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
