1、 Comments, suggestions, or questions on this document should be addressed to: Support Equipment distribution is unlimited. A-A-59915 30 October 2012 COMMERCIAL ITEM DESCRIPTION CONVERTER, FREQUENCY, ELECTRONIC, SOLID-STATE 25 kVA, 400 Hz The General Services Administration has authorized the use of
2、this Commercial Item Description for all federal agencies. 1. SCOPE. This Commercial Item Description (CID) describes a 25 kilovolt-ampere (kVA), Solid-State Frequency Converter herein referred to as the SSFC. The SSFC has a 115/200 volt, 400 Hertz (Hz) output rating to provide power for various air
3、craft maintenance tasks as commonly encountered in avionics backshop environments. 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)
4、, ANSI/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 protr
5、usions, 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
6、or insulated to eliminate the hazard. All wires, cables, tubes, and hoses shall be supported and protected to minimize chafing and abrasion and shall be located so as to provide adequate clearance from moving parts and high operational temperatures. Grommets shall be provided wherever wires, cables,
7、 tubes, or hoses pass through bulkheads, partitions, or structural members. INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59915 2 2.3 Design and construction. The SSFC shall be a stand-alone, self-contained unit capable of converting
8、 three phase 50 and 60 Hz Alternating Current (AC) facility electrical power into 115/200 volt 3-phase electrical power at 400 Hz. The SSFC shall accept any power input specified herein; all SSFC operating power shall be derived from the input power source. The SSFC shall be constructed of modular a
9、nd easily replaceable subassemblies and components wherever possible. The SSFC enclosure shall have doors or covers to provide access for maintenance, repair, and replacement of components and subassemblies. All doors shall be vertically hinged and equipped with hold-open devices for satisfactory us
10、e in high wind and jet blast areas. Removable panels, if provided, shall be attached with captive fasteners. The SSFC shall be Underwriters Laboratory (UL) 1012 listed. The SSFC shall be designed and constructed in accordance with all applicable European Union (EU) requirements in order to have the
11、“CE” marking affixed (see 2.6). The SSFC shall be able to withstand the strains, jars, vibrations, and other conditions indicative to shipping, storage, installation, and service. Additional features and capabilities shall be permitted unless otherwise prohibited by this document. 2.4 Foreign object
12、 damage (FOD). All loose metal parts, such as pins or connector covers, shall be securely attached to the SSFC with wire ropes or chains. “Dog tag“ style beaded chains shall not be provided. 2.5 Materials, protective coatings, and finish. 2.5.1 Protective coatings. Materials that deteriorate when ex
13、posed to sunlight, weather, or operational conditions normally 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
14、chip, blister, crack, peel or scale with age or extremes of climatic 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 corrosion and deterioration wi
15、thout paint. 2.5.1.1 Finish. The exterior finish color of the SSFC shall be Gray, Color Number 26173 of FED-STD-595. 2.5.1.2 Exclusion of water. The design of the SSFC shall be such as to prevent water leaking into, or being driven into, any part of the SSFC interior when either in an operating or t
16、ravelling configuration. All windows, doors, panels, covers, etc., shall be provided 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
17、corners and recesses shall be avoided so that moisture and solid matter cannot accumulate to initiate localized attack. Sealed floors with suitable drainage shall be provided for storage compartments and other areas in the SSFC that could collect and retain water. 2.5.1.2.1 Fluid traps and faying su
18、rfaces. There shall be no fluid traps on the SSFC. Faying surfaces of all structural joints, except welded joints, shall be sealed to preclude fluid intrusion. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59915 3 2.5.1.2.2 Ventilation. Ventila
19、tion shall be sufficient to prevent moisture retention 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
20、fluid entrapment and ensure that drain holes are located 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 3 degree incline in any plane. The minimum diameter of the drain holes shall be
21、 0.25 inch. 2.6 Identification and information plates and marking. An identification plate in accordance with MIL-STD-130 shall be securely attached to the SSFC in a readily accessible location. The identification plate shall contain the following information: Nomenclature, part number, serial numbe
22、r, date of manufacture, manufacturers name, Commercial and Government Entity (CAGE) code, date of warranty expiration, and National Stock Number (NSN). The SSFC and any of its components for which the Governments unit cost is more than $5,000, is serially managed, or the procuring agency determines
23、is mission 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 reada
24、ble markings. The “CE” marking shall be affixed in accordance with EU requirements on or adjacent to the identification plate. All external devices and components which require operational or maintenance interface shall be marked using manufacturers standard markings. 2.7 Calibration and maintenance
25、 adjustments. The design of the SSFC shall provide for readily accessible calibration adjustments and maintenance adjustments. Any calibration adjustments shall be provided by variable value components adjustable by the use of a simple means. The calibration by substitution of selected components or
26、 parts is unacceptable unless specifically approved. The calibration interval shall be a period of one year or greater, based on an operating time of 2,000 hours. The SSFC shall be able to be serviced and visually inspected without removal of panels or components. All major components of the SSFC sh
27、all be easily removable for ease of maintenance. 2.8 Special tools. The design of the item shall minimize the requirement for special tools (see 6.3.2). All special tools shall be provided with, and stored on, the SSFC. 2.9 Accessories. Accessories to be supplied by the manufacturer with each delive
28、rable SSFC 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 written programmer reference manual (if applicable), and a traceable calibration certificate shall also be provided with each SS
29、FC unit. The users manual(s) shall include complete details for the installation, operation (including parallel operations), troubleshooting, maintenance and calibration of the SSFC and shall include interconnect drawings and electrical schematics for all power and control circuits and devices. A co
30、mplete parts listing shall be delivered with each SSFC and shall include, at a minimum, the original manufacturers name, part number, rating, identification and quantity required. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59915 4 2.10 Envir
31、onmental requirements. The SSFC shall be designed for indoor and outdoor use and indoor storage. The SSFC shall be primarily for use on floors of equipment rooms, aircraft hangars and exposed aircraft apron and flight line areas. 2.10.1 Operating temperature. The equipment shall meet its functional
32、and accuracy requirements in an operating environment of -20 degrees Fahrenheit (F) to +125 degrees F. 2.10.2 Non-operating temperature. The equipment shall meet its functional and accuracy requirements after being in a non-operating environment (Storage Temperature) of -65 degrees F to +160 degrees
33、 F. 2.10.3 Altitude. The SSFC shall be capable of operation from sea level to 10,000 feet (ft) and with no derating from sea level to 7000 ft. Non-Operational altitude range shall be sea level to 40,000 ft. 2.10.4 Humidity. The SSFC shall be capable of operation and storage (non-operation) from 5 to
34、 95% (5%) relative humidity, including conditions where condensation takes place in the form of water and frost. 2.10.5 Solar radiation. The SSFC shall not be adversely affected by full time exposure to solar radiation, such as those conditions encountered in desert like environments. 2.10.6 Fungus.
35、 All materials used in the SSFC shall be fungus resistant or shall be suitably treated to resist fungus. The SSFC shall be suitable for use in conditions encountered in a tropical environment. 2.10.7 Explosive atmosphere. The SSFC shall be suitable for use above hazardous areas as defined in NFPA 70
36、 Article 513.3(B) and shall not have any live components within 18 inches of the floor. The SSFC 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 limited to: Diesel-powered aircraft support equipment, fuel ta
37、nks, or aircraft. The SSFC shall function properly without hazard to the unit, personnel, and surrounding equipment within this range. 2.10.8 Acoustical noise. The maximum allowable acoustical noise of the SSFC is 68 Decibels at 7 meters from the perimeter of the unit, measured at any direction. 2.1
38、1 Physical. The SSFC shall meet the physical characteristics listed below. The SSFC shall be designed to be as small and lightweight as practical to meet the characteristics listed herein. The SSFC shall make maximum use of non-corrosive/corrosive resistant materials to reduce corrosion-related issu
39、es, 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 operational and maintenance requir
40、ements, and promotes economically advantageous life cycle costs. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59915 5 2.11.1 Size. The SSFC shall not exceed the following critical values: Depth 24 inches Width 38 inches Height 76 inches (not i
41、ncluding lifting eyes) Weight 850 pounds 2.11.2 Mobility/transportability. Provisions for external lifting and transport by forklift shall be provided. The SSFC shall be transportable by all current military cargo aircraft, spring-ride truck or trailer, railcar, boat, and ship (palletizing or cratin
42、g allowed). The unit shall be equipped with sufficient tie down devices to ensure proper security while being transported. 2.11.3 Enclosure. The enclosure of the SSFC shall be designed and constructed to meet the intents of NEMA Type 4 protection while allowing for ventilation of the electronics int
43、ernal to the unit. A split unit design of NEMA 4 for controls and NEMA 3R for magnetics is also acceptable. The SSFC shall permit safe operation in inclement weather conditions to include, but not be limited to: Wet/damp, dry/dusty, hot/cold, or any combination thereof. Openings in the SSFC enclosur
44、e 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. 2.11.4 Workmanship and wiring. The SSFC shall be manufactured with the best commercial practices and be free from defects. Al
45、l 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. 2.11.5 Input and output terminations. The SSFC shall have areas where conduit or cables can be connect
46、ed for the input and output power connections. Input and output power terminal blocks shall be provided for making the proper connections. The input and out terminals of the SSFC shall be sized accordingly to handle the currents required for each phase. Neutral and Ground terminals shall be sized ac
47、cordingly. 2.11.6 Neutral-to-ground bond. The SSFC shall come from the manufacturer with a removable neutral-to-ground bonding jumper sized in accordance with the National Electrical Code, NFPA 70. 2.12 Functional. The SSFC shall have the functional characteristics listed below: 2.12.1 Fire preventi
48、on and safety. The enclosure of the SSFC shall employ best commercial design practices to reduce the danger to personnel from fire and explosion. Suitable vents and drains shall be incorporated into the enclosure of the SSFC to reduce the risk of hazard. 2.12.2 Door interlock. When any access door o
49、r panel is opened, safety interlock circuitry shall open the input power device and power output device and not allow the input or output devices to close while doors or panels are open. A bypass switch to defeat the interlock circuitry shall be provided for maintenance purposes. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59915 6 2.12.3 Automatic capacitor disc
