1、I INCH - POUND I MIL-I-2220C(SH) 16 January 1991 SUPERSEDING 28 July 1965 (See 6.8) MIL-I-2220B(SH) MILITARY SPECIFICATION INSTRUMENTS, ELECTRICAL-MEASURING, HYDROGEN-GAS-MONITORING, NONPORTABLE (SUBMARINE USE) This specification is approved for use within the Naval Sea Systems Command, Department o
2、f the Navy, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for the production and testing of nonportable hydrogen-gas monitoring systems for use on submarines. 2. APPLICABLE DOCUHENTS 2.1 Governmen
3、t documents. 2.1.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index
4、of Specifications and Standards (DoDZSS) and supplement thereto, cited in the solicitation (see 6.2). 1 ._“ ._ - - . . . . l-Benificial comments (recommendations ,. additions , deletions) and any pertinent 7 data which may be of use in improving this document should be addressed to: i i Commander, N
5、aval Sea Systems Command, SEA .5523, Department of the Navy, 1 i i Washington, DG 20362-5101, by using the self-addressed Standardization Document 1 i Improvement Proposal (DD Form 1426) appearing at the end of this document or by 1 . . , - . . - . . .I .,- . . letter. AMSC N/A FSC 6625 DISTRIBUTION
6、 STATEMENT A. Approved for public release; distribution is unlimited. L“ “._. “- . . , . . . -. . .- . . _ - “ - - . i -1- Licensed by Information Handling Services MIL-I-2220C 66 I 7799906 0471586 9 E MIL-I-2220C(SH) SPECIFICATIONS FEDERAL PPP-F-320 - Fiberboard; Corrugated and Solid Sheet Stock (C
7、ontainer Grade) and Cut Shapes, MILITARY MIL- I - 631 - Insulation, Electrical, Synthetic Resin Composition, Non-Rigid. Shipboard Machinery, Equipment and MIL- S - 901 - Shock Tests, H.I. (High Impact); Systems, Requirements for. MIL-K-3926 - Knobs, Control (For Use With Electronic, Communications,
8、and Allied Equipment). Identification of Equipment. MIL-P-15024 - Plates, Tags and Bands for MIL-P-15024/5 - Plates, Identification. MIL-F-15160 - Fuses: Instrument, Power and Telephone, and Navigation Equipment, Naval MIL-E-16400 - Electronic, Interior Communication Ship and Shore: General Specific
9、ation for. MIL-A-17196 - Alarm Switchboards, Alarm Panels, Remote Sentry Alarm Switch, Signal Units, and Special Alarm Connection Box, Naval Shipboard. Accessories, and Provisioned Items (Repair Parts): Packaging of, MIL-E-17555 - Electronic and Electrical Equipment, MIL-L-19140 - Lumber and Plywood
10、 Fire-Retardant Treated, Readout, Backlighted, Style II (Light Emitting Diodes), RF1 Shielded, Moisture Sealed, High Impact Shock, Type ROI MIL-D-28803/1 - Display, Optoelectronic, Segmented MIL-H-46855 - Human Engineering Requirements for Military Systems, Equipment and Facilities. MIL-T-55164 - Te
11、rminal Boards, Molded, Barrier Screw and Stud Types, and Associated Accessories, General Specification for, MIL-D-87157 - Displays, Diode, Light Emitting, Solid State, General Specifica- tion for. -2- Licensed by Information Handling ServicesMIL-I-2220C bb m 9999906 0473587 b S STANDARDS MILITARY MI
12、L-STD-12 MIL-STD-108 MIL-STD-167-1 MIL-STD-454 MIL-STD-461 MIL-STD-462 MIL-STD-740-1 MIL-STD-740-2 MIL-STD-810 MIL-STD-1132 MIL-STD-1346 MIL-STD-1353 MIL-STD-1399 Section 300 DOD-STD-1399 Section 301 MIL-STD-2000 HANDBOOKS MIL-HDBK-241 - Abbreviations for Use on Drawings, and in Specifications, Stan
13、dards, - Definitions of and Basic Requirements for Enclosures for Electric and and in Technical Documents, Electronic Equipment. - Mechanical Vibrations of Shipboard and Type II - Internally Excited). Equipment (Type I - Environmental - Standard General Requirements for - Electromagnetic Emission an
14、d Electronic Equipment. Susceptibility Requirements for the Control of Electromagnetic Interference. - Electromagnetic Interference - Airborne Sound Measurements and Characteristics, Measurement of. Acceptance Criteria of Shipboard - Structureborne Vibratory Acceleration Equipment. Measurements and
15、Acceptance Criteria of Shipboard Equipment. Engineering Guidelines. Selection and Use of. - Environmental Test Methods and - Switches and Associated Hardware, - Relays Selection and Application. - Electrical Connectors, Plug-In Sockets and Associated Hardware, Selection and Use of. Sys tems (Metric)
16、. Sys tems - Interface Standard for Shipboard - Electric Power, Alternating Current - Interface Standard for Shipboard - Ship Motion and Attitude (Metric). - Standard Requirements for Soldered Electrical and Electronic Assemblies - Design Guide for Electromagnetic Interference EM1 Reduction in Power
17、s Supplies, (Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks are available from the Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA, 19111-5094). -3- Licensed by Information Handling Services2.2 Non-novernment p
18、ublications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOD adopted are those .listed in the issue of the DODISS,specified in the solicitation. Unless otherwise specified, the,issues of docume
19、nts not listed in the DODISS are the issues of the documents cited in -the solicjtation (see 6.2). AMERICW SOCIETY .FOR .TESTING AND MATERIALS (ASTM) F 1166 - Standard Practice for Human Engineering Design for Marine Systems, Equipment andFacilities. (DOD addpted) (Application for copies should be a
20、ddressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) NATIONAL FIRE PROTECTION ASSOCIATION (NFPA) NFPA 70 - National Electric Code (Application for copies should be addressed to the National Fire Protection Association, Batterymarch Park, Quincy, MA 0
21、2269.) UNIFORM CLASSIFICATION COMMITTEE (UCC) Uniform Freight Classification Ratings, Rules and Regulations. (Application for copies should be addressed to the Uniform Classification Committee, Tariff Publication Officer, 222 South Riverside Plaza, Room 1106, Chicago, IL 60606.) (Non-Government stan
22、dards and other publications are normally availab from the organizations that prepare or distribute the documents. These documents also may be available in or through libraries or other informat services.) le ional 2.3 Order of precedence. In the event of a conflict between the text of this document
23、 and the references cited herein the text of this document takes precedence, Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained, 3. REQUIREMENTS 3.1 First article, When specified (see 6.2) a sample shall be subjected to first a
24、rticle inspection (see 6.4) in accordance with 4.4. 3,2 Material. Materials forming a part of the finished product shall conform to the requirements of this specification and shall perform their intended function. The metal parts shall be made of a corrosion-resisting material, or of a material trea
25、ted in a manner to render it resistant to corrosion. 3.2.1 Recovered materials, Equipment, material, and articles incorporated in the products covered by this specification may be fabricated using materials produced from recovered materials to the maximum extent -4- Licensed by Information Handling
26、ServicesI MIL-I-2220C - 66 m 9999906 0471589 T m i MIL-I-2220C(SH) practicable without jeopardizing the intended use. The term “recovered materialstt means materials which have been collected or recovered from solid waste and reprocessed to become a source of raw materials, as opposed to virgin raw
27、materials. None of the above shall be interpreted to mean that the use of used or rebuilt products is allowed under this specification unless otherwise specifically specified. 3.2.2 Exclusion of mercury. The hydrogen monitoring system shall contain no metallic mercury or mercury compounds and shall
28、be free from mercury contamination. During the manufacturing process, tests, and inspections, the hydrogen monitoring system shall not have come in direct contact with mercury or any of its compounds nor with any mercury-containing devices employing only a single boundary of containment. A single bo
29、undary of containment is not backed by a second seal or barrier to prevent contamination in the event of a rupture of the primary seal or barrier. Mercury contamination of the supplies shall be cause for rejection of the material. 3.2.3 Exception to mercury exclusion. If the inclusion of metallic me
30、rcury or mercury compounds is required as a functional part of the material furnished under this contract, the contractor shall obeain written approval from NAVSEA before proceeding. The contractors request shall explain in detail the requirements for mercury, identify specifically the parts to cont
31、ain mercury, and explain the method of protection against mercury escape. 3.3 Monitoring system. The hydrogen monitoring system shall I continuously and.simultaneously monitor and indicate the concentration of hydrogen in the battery compartment exhaust ventilation ductwork on submarines. The monito
32、ring system shall consist of two remote sensors, four remote indicators, and a controller. The monitoring system shall be provided with visible and audible alarm and malfunction status indicators. 3.3.1 Electrical Power system requirements. The monitoring system electrical power system requirements
33、shall be compatible with type I power interface characteristics as specified in MIL-STD-1399, Section 300A. The power supply shall be in accordance with the guidelines of MIL-HDBK-241. NomFnal electrical power input and frequency shall be 115 volts, 60 hertz (Hz), single-phase. Electrical stability
34、shall be as specified in 3.5.1.1. 3.3.2 Monitoring system performance requirements. 3.3.2.1 Range of measurement. The monitoring system shall safely measure the hydrogen content of atmospheres in the range of O to 4 percent hydrogen (O-4% Hz), by volume (hereinafter expressed only as percent hydroge
35、n). 3.3.2.2 Accuracy. The accuracy of the monitoring system (including stability, conformity, hysteresis, dead band and repeatability) shall be within plus or minus 0.2 percent hydrogen (+ 0.2% H2) when exposed to environmental conditions specified in 4.3. 3.3.2.3 Detection level. The monitoring sys
36、tem shall have a minimum detection level of 0.1 percent hydrogen (0.1% Hz). L -5- Licensed by Information Handling ServicesMIL-I-2220C bb W 999990b 0473590 b m 3.3.2.4 Operating and non-operating temperature ranges. The monitoring system shall operate within specified accuracy wi.thin a temperature
37、range of O to- 50 degrees Celsius (“C) (32 to 122 degrees Farenheit (“F) when exposed to pressure and humidity conditions specified in4.3. The monitoring system shall also conform to specified accuracy and performance requirements after being stored under non-operating conditions as specified in MIL
38、-E-16400 for a sheltered controlled environment. 3.3.2.5 Pressure range. The monitoring system shall operate (within specified accuracy) within an ambient pressure range of 24 to 36 inches of mercury (24-36 in-Hg) when exposed to temperature and humidity conditions specified in 4.3. The monitoring s
39、ystem shall withstand ambient pressures of 10 to 30 pounds per square inch absolute (10-30 psia) without damage or . permanent deformation. 3.3.2.6 Humidity. The monitoring system shall operate (within specified accuracy) when exposed to humidity conditions in accordance with MIL-E-16400 and tempera
40、ture and pressure conditions specified in 4.3. 3.3.2.7 Velocitv effects, The monitoring system operations shall not be affected when the sensors are installed in the battery compartment exhaust ventilation ductwork (see 6.2) and subjected to velocity conditions ranging from O to 3,000 feet per minut
41、e (fpm). 3.3.2.8 Repeatabilitv/reDroducibilitv. Monitoring system repeatability/reproducibility shall be within plus or minus 0.2 percent hydrogen (L O. 2% H,). 33.2.9 Response time, The monitoring system shall respond (within specified accuracy) within 30 seconds to reach 90 percent (90%) of the ce
42、rtified value of an applied hydrogen-air or hydrogen-nitrogen mixture. 31 3.2.10 Recoverv time, The monitoring system shall return (within specified accuracy) to 90 percent (90%) of its normal ambient reading within 30 seconds after an applied hydrogen-air or hydrogen-nitrogen mixture has been remov
43、ed. 3.3,2.11 Display range. The controller and remote indicator meter display ranges shall be in accordance with the specified range of measurement (see 3.3.2.1). - 3.3.2.12 Accelerated life. The monitoring system shall operate (within specified accuracy) without mechanical or electrical damage duri
44、ng and after subjection to an accelerated life test in accordance with MIL-E-16400. 3.3.2.13 Zero drift, Drift of the zero reading of the controller and remote indicator meters, when operated under steady-state conditions after zero and span adjustment, shall be within plus or minus 0.2 percent hydr
45、ogen (+ 0.2% H,) during and after subjection to the accelerated life test specified in 3.3.2.12. 3.3.2.14 Drift of span calibration. Drift of the span calibration of the controller and remote indicator meters, when operated under steady-state conditions after zero and span adjustment, shall be withi
46、n plus or minus 0.2 -6- Licensed by Information Handling Servicesb percent hydrogen (+ 0.2% Hz) during and after subjection to the accelerated life test specified in 3.3.2.12. 3.3.3 Sensor assembly. 3.3.3.1 Type. The monitoring system shall be provided with thermal conductivity or combustion (cataly
47、tic) type sensors that are uniquely specific to hydrogen and meet the range-of-measurement requirement specified in 3.3.2.1. 3.3.3.2 Enclosure. Each sensor shall be mounted in its own explosionproof enclosure classified for use in class 1, division 1, group B hazardous locations as specified in arti
48、cle 500 of NFPA 70. Each enclosure shall permit the introduction of sample and calibration gases and the connection of system cables. Each enclosure shall be treated or coated to resist corrosion. Each enclosure shall be suitable for mounting in the battery compartment exhaust ventilation ductwork (
49、see 6.2) and shall not exceed 5-3/4 inches by 6 inches by 7 inches in height, width, and depth, respectively. 3.3.3.3 Calibration port. A calibration port shall be incorporated in the sensor enclosure. The calibration port shall facilitate the connection and introduction of pure air or a certified calibration gas. 3.3.3.4 Sensor output signal. Sensors shall generate a continuous electronic output signal that corresponds to the hydrogen concentration at the sensor, The output signal shall be compatible with the controller scaling circuitry. The output signal
