DLA A-A-59414-2000 SIRENS OUTDOOR WARNING ELECTRONIC AND ELECTRIC-MOTOR-DRIVEN [Superseded DLA MIL-S-503 B CANC NOTICE 1 DLA MIL-S-503 B DLA MIL-S-503 A DLA JAN-S-503]《电子和电机驱动的户外警告.pdf
《DLA A-A-59414-2000 SIRENS OUTDOOR WARNING ELECTRONIC AND ELECTRIC-MOTOR-DRIVEN [Superseded DLA MIL-S-503 B CANC NOTICE 1 DLA MIL-S-503 B DLA MIL-S-503 A DLA JAN-S-503]《电子和电机驱动的户外警告.pdf》由会员分享,可在线阅读,更多相关《DLA A-A-59414-2000 SIRENS OUTDOOR WARNING ELECTRONIC AND ELECTRIC-MOTOR-DRIVEN [Superseded DLA MIL-S-503 B CANC NOTICE 1 DLA MIL-S-503 B DLA MIL-S-503 A DLA JAN-S-503]《电子和电机驱动的户外警告.pdf(6页珍藏版)》请在麦多课文档分享上搜索。
1、Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data thatmay improve this document should be sent to: Defense Supply Center Richmond (DSCR), ATTN:DSCR-VBD, 8000 Jefferson Davis Highway, Richmond, VA 23297-5610.AMSC N/A FSC 6350DISTRIBUTION STATEMENT A. Approv
2、ed for public release; distribution is unlimited.INCH-POUNDA-A-5941422 May 2000 SUPERSEDINGMIL-S-503B28 April 1988COMMERCIAL ITEM DESCRIPTIONSIRENS, OUTDOOR WARNING,ELECTRONIC AND ELECTRIC-MOTOR-DRIVENThe General Services Administration has authorized the use of thiscommercial item description for a
3、ll federal agencies.1. SCOPE. This commercial item description (CID) covers electronic and electric-motor-drivenoutdoor warning sirens capable of providing 360-degree coverage. The sirens shall be complete withall controls and auxiliary equipment, and suitable for mounting roofs or other supporting
4、structureswithout additional protection from the weather.2. CLASSIFICATION. The sirens shall be of the following types, classes, styles, and sizes. The type,class, style, and size to be furnished shall be as specified (see 7.2(b).Type I - Electric-motor-driven vertical sirenType II - Electric-motor-
5、driven horizontal sirenType III - Electronic sirenClass 1 - UncodedClass 2 - CodedStyle A - OmnidirectionalStyle B - Rotating directionalSize - See table IProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-594142TABLE I Siren sizes.Size Sound pressu
6、re level, decibels at 100 feet01 100 10202 103 10503 106 10804 109 11105 112 11406 115 11707 118 12008 121 12309 124 12610 127 12911 130 13212 133 1353. SALIENT CHARACTERISTICS3.1 General requirements. The siren shall be new and one of the manufacturers current modelscapable of operation in accordan
7、ce with the requirements herein. All parts subject to wear, breakage,or distortion shall be accessible for adjustment, replacement, and repair. The sirens shall be electric-motor-driven or electronic, and shall be complete in all details. They shall be of rugged construction towithstand vibration an
8、d exposure to severe weather conditions without excessive deterioration and shallbe capable of operating after long periods of nonuse. The sirens shall be constructed so that dust,water, and condensation within the unit will be at a minimum. Openings shall be screened to prevent theentrance of anima
9、ls and larger insects.3.2 Components. The siren shall include, as a minimum, the following components:3.2.1 Housing. The motor-driven siren or electronic siren speaker housing shall be constructed ofpowder coat painted sheet metal, color-impregnated fiberglass, fiberglass-reinforced moldedpolycarbon
10、ate resin, or aluminum (electronic siren speakers only). For sheet metal, all joints shall beriveted or welded securely, except bolts that shall be used to fasten portions made removable forinspection and maintenance of the interior mechanism. Sheet metal screws shall not be used. Fiberglassand poly
11、carbonate housings shall be drilled and shall be securely bolted to the supporting framework.3.2.2 Mounting. A base shall be provided for mounting the siren on a flat, horizontal surface; orbrackets for a slant roof or pole mount.3.2.3 Fan and stator (motor-driven sirens only). The fan and stator fo
12、r motor-driven sirens shall bemade of aluminum. The fan and other rotating parts of the siren shall be in static and dynamic balance. The fan shall be fastened securely to the motor shaft and a key shall be used to prevent slipping. Bafflesshall be provided within the housing, or the design of the s
13、tator and housing shall be such that the inputair is prevented from mixing with the output air.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-5941433.2.4 Code transmitter. The controls for class 2 coded siren shall include a code transmitter sui
14、tablefor the transmission of coded signals as specified (see 7.2(c).3.2.5 Electrical system. Unless otherwise specified (see 7.2(d), the electrical system shall conform tothe American National Standards Institute /National Fire Protection Association (ANSI/NFPA) 79,“Electrical Standard for Industria
15、l Machinery“ (DoD adopted).3.2.6 Electric motors. The motor for an electric-motor-driven siren shall have sealed and permanentlylubricated ball or roller bearings, shall be energy efficient, and shall conform tothe National Electrical Manufacturers Association (NEMA) MG-1, “Motors and Generators“ (D
16、oDadopted), and Underwriters Laboratories (UL) 674, “Electric Motors and Generators for use inDivision 1 Hazardous (Classified) Locations“ (DoD adopted). The motor shall be suitable for operationon an electric circuit with voltage (AC or DC), frequency, and phase (single or three-phase) as specified
17、(see 7.2(e).3.2.6.1 Control cabinets. Control cabinets for motor starters or electronic packages shall be of theproper size and suitable for the specific application, and shall conform to NEMA ICS 6, “IndustrialControls and Systems: Enclosures“ (DoD adopted). Unless otherwise specified (see 7.2(f),
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