1、Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data that may improve this document should be sent to: WR-ALC/GRVEA, Robins AFB GA 31098-1813. Since contact information can change, you may want to verify the currency of this address information using the ASSI
2、ST Online database at https:/assist.daps.dla.mil/online . FSC 6625 INCH-POUNDA-A-59878 27 OCT 2010 COMMERCIAL ITEM DESCRIPTION LOAD BANK, ELECTRICAL 250 kilowatts, 400 Hertz The General Services Administration has authorized the use of this commercial item description for all federal agencies. 1. SC
3、OPE. This Commercial Item Description (CID) describes a 400 Hertz (Hz), 250 kilowatt (kW), portable type, resistive load bank and accessories. The commercially available, portable, enclosed, forced air cooled, industrial load bank is used for electrical performance testing of ground power supplies i
4、ncluding diesel engine and electrical motor driven generators designed to supply 400 Hz power for aircraft ground power applications. 2. SALIENT CHARACTERISTICS 2.1 Safety and environmental. The equipment shall meet all safety and environmental requirements as specified in National Fire Protection A
5、ssociation (NFPA) 70 National Electrical Code (NEC), ANSI/IEEE C2 National Electrical Safety Code and the latest applicable National Electrical Manufacturers Association (NEMA) standards except as stated herein. All resistive load element buses shall be over-current protected. Air flow failure shall
6、 cause the load bank to automatically drop all connected load before an over-temperature condition occurs. 2.2 Electrical power sources. The load bank shall be completely self-contained and require no power source to operate other than the generator under test. The operating power for internal circu
7、its, instruments, or (and) fan(s) shall be derived only from the power source under test. 2.3 Operating temperature. The equipment shall meet its performance and accuracy requirements in an operating environment of 0 degrees F to +120 degrees F. 2.4 Non-operating temperature. The equipment shall mee
8、t its performance and accuracy requirements after being in a non-operating environment (storage temperature) of 0 degrees F to +160 degrees F. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59878 2 2.5 Calibration and maintenance adjustments. Th
9、e design of the system shall provide for readily accessible calibration adjustments and maintenance adjustments. The calibration adjustments, wherever possible, shall be accessible without removal of the instrument case or modules. These adjustments shall be provided by variable value components, wh
10、ich are adjustable, by the use of simple means. The calibration by substitution of selected components or 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. 2.6 Accessories. Accessories to b
11、e supplied by the manufacturer with each deliverable load bank unit 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 ca
12、libration certificate shall also be provided with each load bank unit. The user manual(s) shall include complete details for the operation, troubleshooting and maintenance of the load bank and shall include interconnect drawings and electrical schematics for all power and control circuits and device
13、s. A complete parts listing including original manufacturers name, part numbers, ratings and identifications shall be included with each load bank unit. 2.7 Environmental requirements. The load bank shall be designed for indoor or sheltered use and indoor storage. The load bank shall be clearly mark
14、ed “NOT FOR USE IN HAZARDOUS LOCATIONS”. 2.8 Performance characteristics. The load bank shall be capable of continuous, resistive load testing of aircraft ground power generator sets producing up to 250 kW at 115/200 volts alternating current (VAC) (nominal), 3 phase, 4 wire, 400 Hz power. The load
15、bank shall have a single, local control panel to contain all the meters, indicators, switches, and controls necessary to operate the unit. 2.8.1 Meters. The control panel of the load bank shall be equipped with meters for monitoring voltage (0-250 VAC), frequency (360-440 Hz), and current (0-300 AC
16、amps) and total power (0-300 kW). Meter accuracy shall be not less than 1.5%, full scale. 2.8.2 Phase selector switch. The load bank shall have a phase selector switch on the control panel for measuring the current of each phase of incoming power (A,B,C). Voltage measurements shall be selectable for
17、 both line-to-neutral and line-to-line for each phase on incoming power. 2.8.3 Phase rotation indicator. The load bank shall have a phase rotation indicator to indicate phase orientation and to indicate the presence of voltage on each phase (ABC, CBA). 2.8.4 E-F circuit. The load bank shall be equip
18、ped with a mode safety interlock circuit to simulate the safety interlock circuitry present on some aircraft through pins E b) meet appropriate performance standards, or c) at a reasonable price. The prime contractor is responsible for ensuring that all subcontractors comply with this requirement. 4
19、. PRODUCT CONFORMANCE PROVISIONS 4.1 Product conformance. The products provided shall meet the salient characteristics of this CID, conform to the producers own drawings, specifications, standards, and quality assurance practices, and be the same product offered for sale to the Government or in the
20、commercial market place. The Government reserves the right to require proof of such conformance. 4.2 Contractor certification. The contractor shall certify and maintain substantiating evidence that the product conforms to the producers own drawings, specifications, standards, and quality assurance p
21、ractices, and is the same product offered for sale in the commercial marketplace. The Government reserves the right to require proof of such conformance. Proof of conformance may include, but shall not be limited to the performance of operational tests, lab tests, modeling and simulation and deliver
22、y of reports and data from these tests. 4.3 Responsibility of inspection. Unless otherwise specified in the contract or CID, the contractor is responsible for the performance of all inspection, examination, and test requirements specified herein. Except as otherwise specified in the contract or CID,
23、 the contractor may use his own facilities or any other facilities suitable for the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to set forth in this description where such inspections, examinations and tests are deemed necessary t
24、o assure supplies and services conform to prescribed requirements. 4.4 Examination of product. Each load bank shall be examined to verify compliance with the requirements herein prior to accomplishing any other tests listed in 4.5. A contractor-generated, Government-approved checklist shall be used
25、to identify each requirement not verified by a test or analysis, and shall be used to document the inspection results. Particular attention shall be given to materials, workmanship, dimensions, surface finishes, protective coatings and sealants and their application, welding, fastening, and markings
26、. Proper operation of each load bank function shall be verified. Each production load bank shall be inspected to a Government-approved reduced version of the checklist. 4.5 Operational test. Each load bank shall be operated at rated full load for not less than 10 minutes, after complete assembly and
27、 prior to shipment, to ensure all parts are functioning according to the manufacturers requirements. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59878 6 5. PACKAGING. 5.1 Preservation, packing, and marking shall be as specified in the contrac
28、t or order. 6. NOTES. 6.1 Source of documents. 6.1.1 Department of Defense and Federal documents may be obtained at https:/assist.daps.dla.mil/online or from the Document Automation and Production Service, Bldg 4D (DPM-DODSSP), 700 Robbins Avenue, Philadelphia PA 19111-5094. 6.1.2 NFPA documents may
29、 be obtained at http:/www.nfpa.org/index.asp or from NFPA, Batterymarch Park, Quincy MA 02269-9101. 6.1.3 National Electrical Manufacturers Association (NEMA) standards may be obtained from National Electrical Manufacturers Association, 1300 North 17th Street, Suite 1752, Rosslyn, Virginia 22209. El
30、ectronic copies of NEMA standards may be obtained from http:/www.nema.org/stds/ . 6.1.4 FAR and DFARS may be obtained from the Superintendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250-7954. Electronic copies of the FAR may be obtained from http:/www.arnet.gov/far Electronic copies of the D
31、FARS may be obtained from http:/www.acq.osd.mil/dpap/dars/dfars/index.htm . 6.1.5 ANSI/EIA standards may be obtained at http:/www.ansi.org or http:/www.eia.org or available from the Electronics Industry Association, Engineering Department, 2001 Pennsylvania Ave., N.W., Washington, D.C., 20006. Phone
32、: 1-800-854-7179 (USA and Canada). 6.1.6 SAE documents may be obtained http:/www.sae.org/servlets/index or from SAE, Inc., 400 Commonwealth Drive, Warrendale PA 15096 6.2 Ordering data. The contract or ordering data should specify the following: a. CID document number, current version and date of CI
33、D. b. Product Conformance provisions. c. Packaging requirements 6.3 Key words. Generator Ground power supplies Portable type Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59878 7 Custodian: Preparing activity: Air Force - 84 Air Force - 84 Revi
34、ew activity: Agent: DLA - IS Air Force - 99 Project 6625-2010-012 NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.daps.dla.mil/online . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
