AIR FORCE A-A-59916-2012 POWER SUPPLY DIRECT CURRENT PORTABLE 28.5 Volts Direct Current 600 Amperes.pdf

1、Comments, suggestions, or questions on this document should be addressed to: AFLCMC/WNZEA, 235 BYRON ST STE 19A, Robins AFB GA 31098-1813. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at https:/assist.dla.mil.

2、AMSC N/A FSC 6130 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. A-A-59916 30 October 2012 COMMERCIAL ITEM DESCRIPTION POWER SUPPLY, DIRECT CURRENT, PORTABLE 28.5 Volts Direct Current, 600 Amperes The General Services Administration has authorized the use of this C

3、ommercial Item Description for all federal agencies. 1. SCOPE. This Commercial Item Description (CID) describes a portable, direct current (DC) power supply, herein referred to as DCPS. The DCPS has a 28.5 volt DC, 600 Ampere (amp) output rating to provide ground power to aircraft and to provide por

4、table electrical power for avionics backshop maintenance and facility tasks. 2. SALIENT CHARACTERISTICS 2.1 Safety and environmental. The equipment shall meet all safety and environmental requirements as specified in National Fire Protection Association (NFPA) 70 National Electrical Code (NEC), ANSI

5、/IEEE C2 National Electrical Safety Code and the latest applicable National Electrical Manufacturers Association (NEMA) standards except as stated herein. 2.2 Component protection. All space in which work is performed during operation, service, and maintenance shall be free of hazardous protrusions,

6、 sharp edges, or other features which may cause injury to personnel. All rotating and reciprocating parts and all parts subject to high operational temperatures or subject to being electrically energized, that are of such nature or so located as to be hazardous to personnel, shall be guarded or insu

7、lated to eliminate the hazard. All wires, cables, tubes, and hoses shall be supported and protected to minimize chafing and INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59916 2 abrasion and shall be located so as to provide adequate

8、 clearance from moving parts and high operational temperatures. Grommets shall be provided wherever wires, cables, tubes, or hoses pass through bulkheads, partitions, or structural members. 2.3 Design and construction. The DCPS shall be a stand-alone, self-contained unit capable of converting three

9、phase 50 and 60 Hertz (Hz) Alternating Current (AC) electrical power into 28.5 volt Direct Current (DC) electrical power. The DCPS shall accept any power input specified herein; all DCPS operating power shall be derived from the input power source. The DCPS shall be constructed of modular and easily

10、 replaceable subassemblies and components wherever possible. The DCPS enclosure shall have doors or covers to provide access for maintenance, repair, and replacement of components and subassemblies. The DCPS design shall include the maximum use of UL recognized or listed components. The DCPS shall b

11、e designed and constructed in accordance with all applicable European Union (EU) requirements in order to have the “CE” marking affixed (see 2.6.1). The DCPS shall be able to withstand the strains, jars, vibrations, and other conditions indicative to shipping, storage, installation, and service. Add

12、itional features and capabilities shall be permitted unless otherwise prohibited by this document. 2.4 Foreign object damage (FOD). All loose metal parts, such as pins or connector covers, shall be securely attached to the DCPS with wire ropes or chains. “Dog tag“ style beaded chains shall not be pr

13、ovided. Removable panels, if provided, shall be attached with captive fasteners. Tire valve stem caps shall be made of plastic. 2.5 Materials, protective coatings, and finish. 2.5.1 Protective coatings. Materials that deteriorate when exposed to sunlight, weather, or operational conditions normally

14、encountered during the service life of the item shall not be used or shall have means of protection against such deterioration that does not prevent compliance with the performance requirements specified herein. Protective coatings that chip, blister, crack, peel or scale with age or extremes of cli

15、matic conditions or when exposed to heat shall not be used. Fasteners, handles, and fittings used in the assembly of the item shall also be primed and painted unless they are specifically designed to resist deterioration without paint. 2.5.1.1 Finish. The exterior finish color of the DCPS shall be G

16、ray, Color Number 26173 of FED-STD-595. 2.5.1.2 Exclusion of water. The design of the DCPS shall be such as to prevent water leaking into, or being driven into, any part of the DCPS interior when either in an operating or travelling configuration. All windows, doors, panels, covers, etc., shall be p

17、rovided with sealing arrangements such that the entry of water is minimized when these items are correctly closed. Particular care shall be taken to prevent wetting of equipment and heat and sound proofing materials. Sharp corners and recesses shall be avoided so that moisture and solid matter canno

18、t accumulate to initiate localized attack. Sealed floors with suitable drainage shall be provided for storage compartments, engine compartments, and other areas in the DCPS that could collect and retain water. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from

19、IHS-,-,-A-A-59916 3 2.5.1.2.1 Fluid traps and faying surfaces. There shall be no fluid traps on the DCPS. Faying surfaces of all structural joints, except welded joints, shall be sealed to preclude fluid intrusion. 2.5.1.2.2 Ventilation. Ventilation shall be sufficient to prevent moisture retention

20、and buildup. 2.5.1.2.3 Drainage. Drain holes shall be provided to prevent collection or entrapment of water or other unwanted fluid in areas where exclusion is impractical. All designs shall include considerations for the prevention of water or fluid entrapment and ensure that drain holes are locate

21、d to effect maximum drainage of accumulated fluids. The number and location of drain holes shall be sufficient to permit drainage of all fluids when the unit is in a 5 degree incline in any plane. The minimum diameter of the drain holes shall be 0.25 inch. 2.6 Markings. Manufacturers standard markin

22、gs shall be used. 2.6.1 Identification and information plates. An identification plate in accordance with MIL-STD-130 shall be securely attached to the DCPS in a readily accessible location. The identification plate shall contain the following information: Nomenclature, part number, serial number, d

23、ate of manufacture, manufacturers name, Commercial and Government Entity (CAGE) code, date of warranty expiration, and National Stock Number (NSN). The DCPS and any of its components for which the Governments unit cost is more than $5,000, is serially managed, or the procuring agency determines is m

24、ission essential, shall have Unique Identification (UID) (also known as Item Unique Identification (IUID) information permanently affixed on or near the respective identification plate(s), marked in accordance with MIL-STD-130. UID information shall be included as both a bar code and human readable

25、markings. The “CE” marking shall be affixed in accordance with EU requirements on or adjacent to the identification plate. 2.6 Calibration and maintenance adjustments. The design of the system shall provide for readily accessible calibration adjustments and maintenance adjustments. The calibration a

26、djustments, wherever possible, shall be accessible without removal of the instrument case or modules. These adjustments shall be provided by variable value components. The calibration by substitution of selected components or parts is unacceptable unless specifically approved. The calibration interv

27、al shall be a period of one year or greater based on an operating time of 2,000 hours. All major components of the SSFC shall be easily removable for ease of maintenance. 2.7 Special tools. The design of the item shall minimize the requirement for special tools (see 6.3.2). All special tools shall b

28、e provided with, and stored on, the DCPS. 2.8 Accessories. Accessories to be supplied by the manufacturer with each deliverable DCPS shall include standard and optional accessories as provided by the manufacturer and listed in the manufacturers catalog or data sheet. A written users manual, a writte

29、n programmer reference manual (if applicable), and a traceable calibration certificate shall also be provided with each DCPS unit. The users manual(s) shall include complete details for the installation, operation, troubleshooting, maintenance and calibration of the DCPS and shall include interconne

30、ct drawings and electrical schematics for all power and control circuits and devices. A complete Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59916 4 parts listing shall be delivered with each DCPS and shall include, at a minimum, the original

31、 manufacturers name, part number, rating, identification and quantity required. 2.9 Environmental requirements. The DCPS shall be designed for indoor and outdoor use and indoor storage. The DCPS shall be primarily for use on floors of garages, aircraft hangars and exposed aircraft apron and flightli

32、ne areas. 2.9.1 Operating temperature. The equipment shall meet its functional and accuracy requirements in an operating environment of -20 degrees F to +125 degrees F. 2.9.2 Non-operating temperature. The equipment shall meet its functional and accuracy requirements after being in a non-operating e

33、nvironment (Storage Temperature) of -65 degrees F to +160 degrees F. 2.9.3 Altitude. The DCPS shall be capable of operation from sea level to 10,000 feet (ft) and with no derating from sea level to 6000 ft. Non-Operational altitude range shall be sea level to 40,000 ft. 2.9.4 Humidity. The DCPS shal

34、l be capable of operation and storage (non-operation) from 5 to 95% (5%) relative humidity, including conditions where condensation takes place in the form of water and frost. 2.9.5 Solar radiation. The DCPS shall not be adversely affected by full time exposure to solar radiation, such as those cond

35、itions encountered in desert like environments. 2.9.6 Fungus. All materials used in the DCPS shall be fungus resistant or shall be suitably treated to resist fungus. The DCPS shall be suitable for use in conditions encountered in a tropical environment. 2.9.7 Explosive atmosphere. The DCPS shall be

36、suitable for use above hazardous areas as defined in NFPA 70 Article 513.3(B) and shall not have any live components within 18 inches of the floor. The DCPS shall be safe to operate outside a 20 ft distance of fueled equipment as typically encountered in garages and hangars, to include but not be li

37、mited to: Diesel powered aircraft support equipment, fuel tanks, or aircraft. The DCPS shall function properly without hazard to the unit, personnel, and surrounding equipment within this range. The DCPS shall be clearly labeled with a permanently affixed warning to read: WARNING - KEEP 20 FT CLEAR

38、OF HAZARDOUS VAPOR SOURCE. 2.10 Physical. The DCPS shall meet the physical characteristics listed below. The DCPS shall be designed to be as small and lightweight as practical to meet the characteristics listed herein. The DCPS shall make maximum use of non-corrosive/corrosive resistant materials to

39、 reduce corrosion-related issues, i.e. rust, fungus, mildew, pitting, etc. The use of composite materials, where applicable, is encouraged. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible, provided that the material meets or exceeds the oper

40、ational and maintenance requirements, and promotes economically advantageous life cycle costs. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59916 5 2.10.1 Size. The DCPS shall not exceed the following critical values: Length 60 inches Width 36

41、 inches Height 50 inches Weight 800 pounds (without cables) 2.10.2 Mobility/transportability. The DCPS shall be equipped with four wheels, casters or flat-proof tires at least 8 inches in diameter to provide mobility. Provisions for external lifting and transport by forklift shall be provided. The D

42、CPS shall be of a design that allows one person to push and maneuver the unit on a hard level surface. The DCPS shall be equipped with a brake mechanism to hold the unit stationary. Additionally the DCPS shall be transportable by all current military cargo aircraft, spring-ride truck or trailer, rai

43、lcar, boat, and ship (palletizing or crating allowed). The unit shall be equipped with sufficient tie down rings to ensure proper security while being transported. 2.10.3 Enclosure. The enclosure of the DCPS shall be designed and constructed to meet the intents of NEMA Type 4 protection while allowi

44、ng for ventilation of the electronics internal to the unit. A split unit design of NEMA 4 for controls and NEMA 3R for magnetics is also acceptable. The DCPS shall permit safe operation in inclement weather conditions to include, but not be limited to: Wet/damp, dry/dusty, hot/cold, or any combinati

45、on thereof. Openings in the DCPS enclosure to allow input/output cable entrance shall be sealed from the elements. Access doors or covers for maintenance, calibration and cleaning shall be provided as listed in 2.3. 2.10.4 Workmanship and wiring. The DCPS shall be manufactured with the best commerci

46、al practices and be free from defects. All wiring shall be permanently marked and each wire must be uniquely identified. All internal wiring shall be securely supported, neatly routed and protected against chafing, excess heat and strain. 2.10.5 Input power cable. The DCPS shall be supplied with a 4

47、 wire, 100 ft input cable suitable for use in the environmental conditions listed herein. The cable shall have a voltage drop of no more than 2 percent rated voltage at continuous rated load. The cable shall attach to the unit with the use of terminal studs and the end for wall connection shall be l

48、eft un-terminated and protected from physical damage until installation. 2.10.6 Output power cable. The DCPS shall be supplied with one 30 ft, 28 VDC output power cable installed and in accordance with Society of Automotive Engineering (SAE) AS90347 part number MS90347-20. 2.10.7 Cable racks. Cable

49、racks shall be provided for mounting the AC input power cable and the DC output power cable. The racks shall be an integral part of the unit and allow for complete portability of the DCPS. All rack surfaces shall be free of sharp edges to prevent damage to cable insulation jackets. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-5991