1、MIL-A-15303P;SH) 19 Rovember 1966 - SUPERSEDING FIIL-A- m03K (SHIPS) 20 July 1976 (See 6.8) MILITARY SPECIFICATION AUDIBLE SIGNALS: ALARMS, BELLS, BUZZERS, HORNS, AND SIRENS, ELECTRONIC, SHIPBOARD This Specification is approved for use within the haval Sea Systems Command, Department of the Navy, an
2、d is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers various types of audible signals for alarm and signaling purposes on Navy ships. 1.2 Classification. The types of audible signals shall be designated in the following fo
3、rm, as specified (see 6.2.1): IC/BlDl “IC/“ is the basic part of each audible signal designator, B indicates the general type of signal (see 1.2.2), 1 indicates special characteristics of the general type (see 1.2.3), D indicates type of supply current (see 1.2.4) and 1 indicates the supply voltage
4、(see 1.2.5). When an audible signal may be used at more than one type of supply current, a combination of designators may be used in the type designation. 1.2.1 Basic indicator. The basic indicator for Naval interior communica- tion equipment shall be “IC/t. 1.2.2 General type. General type of signa
5、l shall be designated by a single letter as follows: B - Bell Z - Buzzer H - Horn S - Siren E - Electronic Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Naval Sea Systems Command, S
6、EA 5523, Department of the Navy, Washington, DC 20362-5101 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 6350 DISTRIBUTION STATEMENT A Approved for public release; distribution unlimited Provi
7、ded by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-15303P 63 D 9999906 0236921.1 7 m MIL-A- 15303P (SH) 1.2.3 Special characteristics. Special characteristics of the general type shall be designated by a number as follows: Bells 1 - 3 inch diameter gon
8、g 2 - 8 inch diameter gong 3 - Cow bell shaped gong 4 - Single stroke bar chime 5 - Bus failure alarm signal Buzzers 1 - Low intensity, watertight Horns 1 - Nonresonated, 100 to 600 hertz (Hz), 95 decibels (dB) 2 - Resonated, 250 to 350 Hz, 95 dB 3 - Resonated, 300 to 350 Hz, 112 dB (general and mot
9、or boat 6 - Mechanical, 100 to 600 Hz, motorboat use, 90 dB 7 - Mechanical, 200 to 350 Hz, fog signal, 110 dB 8 - Motor-operated, 100 to 600 Hz, 103 dB navigational signal) NOTE: Navigational horns constructed of corrosion resistant materials shall be identified by the letter “N“ as the last element
10、 of the type designation. Sirens 1 - Low pitch, 600 to 1200 Hz 2 - High pitch, 1750 to 2500 Hz Electronic signals 1 - Bus failure alarm signal 800 to 1800 Hz 3 - Switchboard, audible and remote signals 500 to 1000 Hz 1.2.4 Supply current. Type of supply current shall be designated by a single letter
11、 as follows: D - Direct current (dc) S - 60 Hz alternating current (ac) F - 400 Hz ac 1.2.5 Supply voltage. Supply voltage shall be designated by a number as follows : 1 - 6-volt (V) supply 2 - 12-v supply 3 - 24-V supply 4 - 115-V supply 5 - 440-V supply Provided by IHSNot for ResaleNo reproduction
12、 or networking permitted without license from IHS-,-,-“IL-A-i5303P h3 H 999770b 023b725 7 I 1.3 Parr iaenrif ication. The audible signals furnished under this specification shai; be identified by a part number as follows: M15303-ICiBlD1 II 11 N prefix and specification no Basic indicator for Naval i
13、nterior communication equipment Type of audible signal (see 3.5) (defining a 3-inch diameter gong, operating on a 6 volt dc (Vdc) power supply) 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbook. The following speci- fications, standards, and handbook for
14、m a part of this specification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be rhose listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation. SPECIFICATIOSS FE
15、DERAL FF-5-171 - MILITARY MIL-S-2036 - MIL-E-16400 - FIIL-E-17555 - STANDARDS MILITARY MIL-STD- 105 - MIL-STD- 108 - MIL-STD-461 - Bearings, Ball, Annular (General Purpose). Enclosures for Electric and Electronic Equipment, Naval Shipboard. Electronic, Interior Communication and Navigation Equipment
16、, Naval Ship and Shore: General Speci- f icat ion for. and Provisioned Items (Repair Parts): Pack- aging of. Electronic and Electrical Equipment Accessories, Sampling Procedures and Tables for Inspection by Definitions of and Basic Requirements for Electromagnetic Emission and Susceptibility Attribu
17、tes. Enclosures for Electric and Electronic Equipment. Requirements for the Control of Electromagnetic Interference. 3 L Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-A-25303P b3 m 9999706 023b92b 0 m MIL-A-l5303P(SH) MILITARY (Continued) MIL-
18、STD-462 - Electromagnetic Interference Characteristics, Fleasurement of. NIL-STD-740 - Airborne and Structureborne Noise Measurements and Acceptance Criteria of Shipboard Equipment. NIL-STD-785 - Reliability Program for Systems and Equipment Development and Production. MIL-STD-810 - Environmental Te
19、st Methods and Engineering Guide- 1 ines . MIL-STD-1310 - Shipboard Bonding, Grounding, and Other Techniques for Electromagnetic Compatibility and Safety. DOD-STD-1399, - Interface Standard for Shipboard Systems, Section 300 Electric Power, Alternating Current. (Metric) HANDBOOK MILITARY MIL-HBDK-21
20、7 - Reliability Prediction of Electronic Equipment. 2.1.2 Other Government drawings. The following other Government drawings form a part of this specification to the extent specified herein. Unless otherwise specified, the issues shall be those in effect on the date of the solicitation. DRAWINGS NAV
21、AL SEA SYSTEMS COMMAND NAVSHIPS 803-73904 NAVSHIPS 803-73905 NAVSHIPS 803-74308 NAVSHIPS 803-74309 NAVSHIPS 803-74320 NAVSHIPS 803-74342 NAVSHIPS 803-74354 NAVSHIPS 803-74465 NAVSHIPS 803-74488 (NAVSEA) - Bell, Watertight, 115 Volts, 60 Cycles, Type IC/BlS4, Sym. 2622. - Buzzer, Watertight, Type IC/
22、ZlS4 115 Volts, 60 Cycles, Sym. 2623. - Horn, Motor Driven Types IC/H8D3, Water- tight, 24 Volts D.C., IC/H8D4, Water- tight, 115 Volts D.C., and IC/H8S4, Watertight, 115 Volts A.C., Sym. 2628. - Siren - 115 Volts A.C. - D.C., Low and High Pitch - SP, Sym. 2627. - Horns, Resonated - 115 Volts AC/DC,
23、 High Intensity, Watertight, Types IC/H2S4 and IC/H2D4. - Bell, Watertight and Explosionproof, 115 Volts, 60 Cycle, Types IC/B2S4, IC/B2S4(EXP), and IC/B3S4, Sym. 2622.1, 2622.2, 2622.3. D.C. Type IC/HlD4, Sym. 2944. Type IC/HlS4, Syrn. 2626. 3005. - Horn-Vibratory Watertight, 115 Volts, - Horn, Vib
24、ratory, 115 Volts, Watertight, - Bell, Dripproof, Type IC/BSS5, Sym. 3004, NAVSHIPS 803-1197104 - Buzzer, Watertight, 115 Volts, 400 Cycles, Type ICIZlF4, Sym. 3003. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-N! (Copies of Specifications, standa
25、rds, handbooks, and drawings required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) 2.2 Other publications. The following document forms a part of this specification to the extent specifi
26、ed herein. Unless otherwise specified, the issues of the documents which are DoD adopted shall be those listed in the issue of the DoDISS specified in the solicitation. Enless otherwise specified, the issues of documents not listed in the DoDISS shall be the issue of the nongovernment documents whic
27、h is current on the date of the solicitation. SOCIETY OF AUTOMOTIVE ENGINEERS (SAE) J 517 - Hydraulic Hose. (Application for copies should be addressed to the Society of Automotive Engineers, 400 Commonuealth Drive, Warrendale, PA 15096.) 2.3 Order of precedence. In the event of a conflict between t
28、he text of this specification and the references cited herein (except for associated detail specifications, specification sheets or ?lS standards), the text of this specification shall take precedence. Nothing in this specification, however, shall supersede applicable laws and regulations unless a s
29、pecific exemption has been obtained. 3. REQUIREMENTS 3.1 Qualification. Audible signals furnished under this specification shall be products which are authorized by the qualifying activity for listing on the applicable qualified products list at the time set for opening of bids (see 4.3 and 6.3). 3.
30、2 General features. The equipment, in addition to the requirements specified herein, shall be in accordance with MIL-E-16400, except for the accelerated life-test see 3.13 and 4.5.4) and shall conform to the tests specified in section 4. ,AL SEA SVZTEF1.S CO?l?lAND (NAtSEA) (Continued 1 NAiSHIPS 803
31、-1853029 - Horn, Resonated, High Intensity, Kater- tight, Types IC/H3D2, 12 Volts D.C., Sym. 3939, JC/H3D3, 24 Volts D.C., Sym 3940, IC/H3D4, 115 Volts D.C., Sym. 3941, IC/H3S4, 115 Volts A.C., Sym. 2939, 3942. NAYSHIPS 803-1653145 - Airflow Indicator and Alarm System, 115 Volts. A.C., O Cycles, Cir
32、cuit HF. NAiSHIPS 804-1853037 - Signal, Electronic, Audible, Type IC/ESD2, 12 Volts DC. NAISHIPS 804-1853042 - Alarm Signal, Bus Failure (Electronic), Type IC/ElDl, Nonitoring, 115 Volts DC or 115 Volts 6O-LOO Cycles, Sym. 1943. 5 F. Provided by IHSNot for ResaleNo reproduction or networking permitt
33、ed without license from IHS-,-,-MIL-A-LS303P 63 9997906 0236928 4 m NIL-A-l5303P(SH) 3.3 Construction. Audible signals constructed in accordance with draw- ings specified herein shall meet the performance requirements specified herein. 3.3.1 Audible signals are shown on Drawings 803-73904, 803-73905
34、, 803-74308, 803-74309, 803-74320, 803-74342, 803-74354, 803-74465, 803-74488, 803-1197104, 803-1853029, 804-1853037, 804-1853042 and 803-1853145 and shall be constructed in accordance with these drawings for form, fit and functions (see 6.4). 3.3.2 Unless otherwise specified herein (see 3.10.1.1 an
35、d 6.2.1), all signals shall be two- or three-point vertically mounted. 3.3.3 The signals shall provide for adjustment for optimum audible output. Adjustment features shall be constructed to be securely locked to insure stability of positioning. 3.3.4 Audible signals shall be painted in accordance wi
36、th MIL-E-16400, except that the surfaces of identification plates, bell gong, and strikers shall not be painted. 3.3.5 Grounding and bonding. Short circuits or grounds which could be caused by excessive motion of armatures or other moving parts shall be prevented. Bonding shall be in accordance with
37、 MIL-Sm-1310. 3.3.6 Shielding and electromagnetic interference reduction. Shielding and electromagnetic interference characteristics shall be in accordance with class A4 or A5 of MIL-STD-461 for all types of audible signals. Certain audible signals shown on drawings specified in 3.3.1 incorporate ra
38、dio interference filters. Filters are required only when essential to enable the audible signals to meet these characteristics. 3.3.7 Special tools. Audible signals shall be so constructed that special tools will not be required for disassembly, repair, or reassembly. Special tools are defined as th
39、ose tools not listed in the Federal Supply Catalog (copies of this catalog may be consulted in the office of the Defense Contract Administration Services Management Area (DCASMA). 3.4 Power supply tolerances. The audible signals shall pass the tests of 4.5.2 and 4.5.3 when operated from a power supp
40、ly at the upper and lower voltage and frequency limits specified hereinafter: 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Sormal power source Lpper limit Lover limit 6 Vdc 12 Ydc 24 Ydc 115 Vdc 115 v O Hz 115 v Provided by IHSNot for ResaleNo r
41、eproduction or networking permitted without license from IHS-,-,-T AB LE IV. Quality conformance examination and tests. - Continued I Test Group B Operation Dielectric strength Insulation resistance Acoustical output (at normal voltage and frequency) Group C Workmanship/general examination Design op
42、eration Acoustical output Electromagnetic interference Transient voltage (ac signals) Enclosure Salt sprayl/ Extended storage Temperature and humidity Extreme temperature for exposed locat ion Vibration (vital equipment) Accelerated life Dielectric strength Insulation resistance Shock 1 Explosion (t
43、ype IC/B2S4 (EXP) only) Requirement paragraph 3.3.3, 3.7, 3.8, 3.9, and 3.10 3.2 3.2 3.5 and 3.6 3.2 3.3.3, 3.7, 3.8, 3.9, and 3.10 3.5 and 3.6 3.3.6 3.12 3.2 and 3.5.1 3.14 3.11.2 3.11.1 3.11.3 3.2 3.13 3.2 3.2 3.2 3.7.3 Test reference 4.5.1 MIL-E-16400 MIL-E-16400 4.5.2 and 4.5.3 NIL-E-16400 4.5.1
44、 4.5.2 and 4.5.3 4.5.8 4.5.10 MIL-E-16400 MIL-E-16400 4.5.9.2 4.5.9.1 4.5.9.3 4.5.6 4.5.4, 4.5.5 YIL-E-16400 ?IIL-E- 16400 4.5.7 4.5.11 - 1/ Applies to watertight signals only. 4.4.1 Sampling for quality conformance inspection. 4.4.1.1 Lot. All audible signals of the same type presented for delivery
45、 at one time shx be considered a lot. The lot may include the entire contract quantity or it may be the production of any convenient time period. The accep- tance and rejection requirements of MIL-STD-105 shall apply. 4.4.1.2 Sampling for group A examination. A random sample of audible signals shall
46、 be selected from each lot in accordance with table V and shall be subjected to the group A tests as specified in 4.4. The results of the examina- tion shall be compared with the requirements of this specification. Failure to conform to the requirements of this specification shall be counted as a de
47、fect, and the audible signals shall be rejected. If the number of such nonconforming audible signals in any sample exceeds the acceptance number of that sample, this shall be cause for rejection of the lot represented by the sample. 16 Provided by IHSNot for ResaleNo reproduction or networking permi
48、tted without license from IHS-,-,-TAELE V, Sampling for group A examination AQL = Number of audible signals non- conforming on any group B test Number of Number of audible signals Rejection Accept ance audible signals in lot number number in sample 3 to 15 16 to 50 1 O Al 1 Less than Al 1 51 or over
49、 3 2 All 5 percent 5 percent or over 4.4.1.3.1 Sampling for acoustical output test for bells, buzzers, and type IC/ElDl electronic signals. Two units or 4 percent, whichever is greater, of each production lot of bells, buzzers, and type IC/ElDl electronic sienals shall be subjected to the acoustical output tesi- of 4.5.2 and 4.5.3. The samples shall be selected after all units of the production lot have been adju
