1、Comments, suggestions, or questions on this document should be addressed to: Commander, Naval Sea Systems Command, ATTN: SEA 05Q, 1333 Isaac Hull Avenue, SE, Stop 5160, Washington Navy Yard DC 20376-5160 or emailed to CommandStandardsnavy.mil, with the subject line “Document Comment”. Since contact
2、information can change, you may want to verify the currency of this address information using the ASSIST Online database at http:/assist.daps.dla.mil. AMSC N/A FSC 6320 INCH-POUND MIL-PRF-32226 25 October 2006 PERFORMANCE SPECIFICATION FLAME DETECTOR, ADVANCED FIRE AND SMOKE SENSOR SYSTEM (AFSSS) Th
3、is specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the performance requirements for flame detectors (see 6.8.5), which are components of an overall Advanced Fire and Smoke Sensor System (AFSSS) for use on n
4、aval ships. These flame detectors may be of commercial-off-the-shelf (COTS) design, but must be rugged (see 6.8.12) enough to meet all of the requirements of this performance specification and the rigors of Navy shipboard service. Performance requirements for the other associated AFSSS components (e
5、.g., ionization (see 6.8.8) and photoelectric (see 6.8.10) smoke sensors (see 6.8.15), heat sensors (see 6.8.7), Flame Detector Zone Modules (FDZM) (see 6.8.6), Switch Closure Zone Modules (SCZM) (see 6.8.16), isolators (see 6.8.9), and alarm panel (see 6.8.2) are contained in their respective AFSSS
6、 specifications. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While
7、 every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3, 4, or 5 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards,
8、 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 cited in the solicitation or contract. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-S-901 - Shock Tests,
9、 H.I. (High Impact); Shipboard Machinery, Equipment and Systems, Requirements for MIL-E-2036 - Enclosures for Electric and Electronic Equipment MIL-PRF-16884 - Fuel, Naval Distillate MIL-DTL-24643 - Cables and Cords, Electric, Low Smoke, for Shipboard Use General Specifications for Provided by IHSNo
10、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32226 DEPARTMENT OF DEFENSE STANDARDS MIL-STD-167-1 - Mechanical Vibrations of Shipboard Equipment (Type I - Environmental and Type II Internally Excited) MIL-STD-461 - Requirements for the Control of Electromag
11、netic Interference Characteristics of Subsystems and Equipment (Copies of these documents are available online at http:/assist.daps.dla.mil/quicksearch/ or http:/assist.daps.dla.mil or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.3 No
12、n-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. FACTORY MUTUAL RESEARCH CORPORATION (FMRC) ANSI/FM 3260 - American National Stand
13、ard for Radiant Energy-Sensing Fire Detectors for Automatic Fire Alarm Signaling (Copies of this document are available from Factory Mutual Research Corporation, 1151 Boston-Providence Turnpike, Norwood, MA 02062 or online at .) NATIONAL FIRE PROTECTION ASSOCIATION (NFPA) NFPA 72 - National Fire Ala
14、rm Code (Copies of this document are available from National Fire Protection Association, One Batterymarch Park, Quincy, MA 02269 or online at http:/www.nfpa.org/.) 2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this
15、 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 and 6.3), a sample shall be subjected to first article inspection in accordance with 4.2
16、. 3.2 Design requirements. 3.2.1 Design, materials, and manufacturing processes. The contractor shall select the materials, but the materials shall meet all of the interface, operational, and performance requirements specified herein. 3.2.2 Recycled, recovered, or environmentally preferable material
17、s. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible, provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs. 3.3 Configuration. The overall flame detec
18、tor shall consist of the appropriate electronics and viewing lens(es) housed in an appropriate enclosure. The flame detector shall also have appropriate mounting hardware that allows for mounting to the ship as well as adjustments for aligning the flame detectors orientation after mounting (see 3.3.
19、4 and 3.7.2). The term, “flame detector,” as used in this specification, refers to the overall flame detector consisting of the enclosed flame detector and its mounting and line-of-sight adjusting hardware. Flame detectors shall operate properly in both overhead (vertical) or bulkhead (horizontal) m
20、ounted positions. Flame detectors shall operate properly when oriented/aimed in any direction. 3.3.1 Interchangeability. The AFSSS flame detector shall have a unique model number and shall be physically identical and interchangeable with all other AFSSS flame detectors from the same manufacturer. 2
21、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32226 3.3.2 Flame detector principle of operation. Flame detectors shall be the discriminating type that requires radiation of two or more different frequencies (e.g., one in the ultraviolet ran
22、ge and one in the infrared range, or two or three in the infrared range, etc.) before an alarm is generated, in order to minimize false alarms (see 6.8.4) from non-fire sources and nuisance alarms from welding or other light-emitting operations. In addition, flame detectors shall have a flicker disc
23、rimination (characteristic of the natural flicker frequency of a fire) to further prevent false or nuisance alarms from non-fire sources. Flame detectors shall be restorable after alarm, but only after a reset (see 6.8.11) at the alarm panel is manually executed and the detector is no longer viewing
24、 the radiation from the fire (i.e., flame detector alarms shall latch at the alarm panel). 3.3.3 Individual addressability and LED. Either the flame detector or the FDZM shall have an adjustable mechanical device or dipswitch that shall be easily set to allow each flame detector to be individually i
25、dentifiable and addressable (see 6.8.1) by the alarm panel once installed in a specific location in a shipboard compartment. Once set, this device or dipswitch shall be easily capable of later being set to a different address, without the use of special tools or equipment, to support flame detector
26、interchangeability. The flame detector shall also contain one or more LEDs. Failure of any LED shall not interfere with the operation of the flame detector nor the transmission of flame detector alarm or trouble signals (see 6.8.17) to the alarm panel. The LED(s) shall be capable of visually showing
27、 the condition of the flame detector. The LED(s) shall distinctly identify the three possible flame detector states: State 1: Power is not being supplied to the flame detector or the detector is not properly operating (darkened LED). State 2: Power is being supplied to the flame detector and the det
28、ector is operating but is not in an alarm state. State 3: Power is being supplied to the flame detector and the detector is in an alarm state. 3.3.4 Enclosure. The flame detector shall be housed in an enclosure. If the flame detector receives power from and communicates with a FDZM, the flame detect
29、or enclosure shall possess a flat area (or actual stuffing tube) to allow an appropriate watertight, shielded cable from the FDZM to penetrate the flame detector with an appropriate watertight stuffing tube (see MIL-E-2036). If the flame detector connects to the sensor loop and receives power from a
30、nd communicates with the alarm panel directly, then the flame detector enclosure shall possess sufficient flat areas to allow two LS-2SWU-1 cables (see MIL-DTL-24643) to penetrate (for the sensor loop and power connections). The flame detector enclosure shall provide a conductive path for the shield
31、s of all cables to connect to ships hull to provide shield termination. The flame detector shall also have appropriate mounting hardware that allows for mounting to the ship as well as adjustments for aligning the flame detectors orientation after mounting. This mounting hardware shall be a bracket,
32、 swivel mount, or some mechanical means to align or position the flame detector viewing lens(es) to point in the direction of desired coverage, after the mounting hardware bolts are securely connected to the 1-inch long threaded-female metal standoffs welded to the bulkhead or overhead. Once the fla
33、me detectors viewing lens(es) is (are) properly positioned, the flame detector bracket, swivel, or mechanical means shall be capable of being secured so that the lens(es) stays aimed at its intended coverage area. The flame detector shall be compatible with the mounting and alignment hardware and sh
34、all securely attach to it but be easily adjusted/realigned without the need for special tools. 3.4 Degree of enclosure. The overall flame detector shall be at least NEMA-4 (National Electrical Manufacturers Association) watertight and dust tight and shall be rated for use in hazardous locations clas
35、sified as Class I, Division 1, Groups B, C, D. The approval agencys decal must appear on the flame detector. 3.5 Weight. The total weight of the flame detector (including all mounting and adjustment hardware) shall not exceed 6 pounds. 3.6 Size. The maximum height, width, and depth of the flame dete
36、ctor (not including the mounting and adjustment hardware) shall not exceed 10 inches (for each direction). 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32226 3.7 Interface requirements. 3.7.1 Electrical interface. Flame detectors shall o
37、btain power from and be compatible with the UL listed AFSSS alarm panel. The sensor loop cable used to interface the alarm panel with the flame detector (either directly or via the FDZM) shall be LS2SWU-1. The LS2SWU-1 cabling shall be routed from the alarm panel to the various sensors and flame det
38、ectors (or sensors and FDZMs) throughout the ships compartments and then return to the alarm panel in a looped NFPA 72, Style 6, Class A signaling line circuit (see 6.8.14) arrangement so that single opens on the loop will not result in the loss of any sensors. If the sensor loop does not supply pow
39、er to the flame detector, then a separate flame detector LS2SWU-1 power cable shall be routed from the alarm panel to all of the flame detectors (or via their FDZMs, if required) in a looped fashion so that single opens on this loop will not result in the loss of power to any flame detectors. 3.7.2
40、Ship interface. The flame detector shall mount to a bracket, swivel mount, or some mechanical means, which, in turn, shall mount with bolts to 1-inch long threaded-female metal standoffs welded onto the overheads and bulkheads of the ships compartments. The bracket or swivel mount shall allow for ad
41、justing or aligning the flame detectors orientation (view) after mounting. This mounting hardware shall align or position the flame detector viewing lens(es) to point in the direction of desired coverage, after the mounting hardware bolts are securely attached to the bulkhead or overhead. Once the f
42、lame detectors viewing lens(es) is (are) properly positioned, the flame detector bracket or swivel mount shall be capable of being secured, without the need for special tools, so that the lens(es) stays aimed at its intended coverage area. 3.8 Operating requirements. 3.8.1 Basic operation. When test
43、ed in accordance with 4.5.1, flame detectors shall alarm when subjected to appropriate and sufficient radiant energy and shall send an alarm signal (see 6.8.3) to the alarm panel. Flame detectors shall generate appropriate trouble indications at the alarm panel when flame detector power is disconnec
44、ted and when their sense-line cable that connects the flame detector to the FDZM (if an FDZM is used) is disconnected. 3.8.2 Sensitivity. When tested in accordance with 4.5.2.1 and 4.5.2.2, flame detectors shall alarm to the all test fires within 30 seconds (after the shield is removed). Flame detec
45、tors shall have a solid angle field of view of at least 90 degrees. 3.8.3 Self-testing circuitry. Flame detectors shall perform an automatic functional self-test (see 6.8.13) that checks the transparency of the flame detector lens(es) to ensure the lens(es) is (are) free from contaminants that could
46、 block flame radiation from reaching the flame detector. In addition, this self-test shall automatically test the operation of the flame detectors electronic circuitry (without the need to generate an actual flame at the flame detector or attach meters to the detector) without causing an actual alar
47、m to register at the alarm panel. Any components that are located on the outside of the flame detector enclosure for this self-test shall be securely attached to prevent removal by tampering, vibration, or shock. Any failure of this self-test shall be appropriately communicated to and displayed on t
48、he alarm panel. 3.9 Performance requirements. 3.9.1 Commercial performance requirements. Flame detectors shall be FM approved and be compatible with a UL listed AFSSS alarm panel (either directly or via FDZMs). Flame detectors shall comply with ANSI/FM 3260, with the following exceptions/clarificati
49、ons: a. The flame detector shall alarm within 30 seconds to the 12-inch by 12-inch gasoline pan fire at a distance of at least 40 feet. Sensitivities to other ANSI/FM 3260 test fires may also be identified. b. At least one LED shall be provided on the flame detector to identify that it is the unit from which the alarm was initiated. This LED must also distinguish between the sensors three states: not powered, powered without an alarm, and powered with an alarm. c. After fla
