1、KSC-SPEC-E-0002A AUGUST 24, 2010 Supersedes KSC-SPEC-E-0002 March 15, 1967 National Aeronautics and Space Administration John F. Kennedy Space Center KSC FORM 16-12 (REV. 6/95) PREVIOUS EDITIONS ARE OBSOLETE (CG 11/95) METRIC/INCH-POUND MODULAR ELECTRICAL ENCLOSURES, RACKS, CONSOLES, AND ACCESSORIES
2、, SPECIFICATION FOR ENGINEERING DIRECTORATEEAR 99 NO LICENSE REQUIRED The information contained in the document is technical in content, but not technical data as defined by the International Traffic in Arms Regulations (ITAR) or the Export Administration Regulations (EAR), and therefore is EAR 99 N
3、LR, no export license required, suitable for public release. General Prohibition Six (Embargo) applies to all items subject to the EAR, (i.e., items on the CCL and within EAR 99 NLR). You may not make an export or re-export contrary to the provisions of part 746 (Embargos and Other Special Controls)
4、 of the EAR and 22 CFR part 126.1 of the ITAR. EDDR #101959 NASA KSC Export Control Office (321-867-9209) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
5、,-KSC-SPEC-E-0002A AUGUST 24, 2010 Supersedes KSC-SPEC-E-0002 March 15, 1967 JOHN F. KENNEDY SPACE CENTER, NASA METRIC/INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted wit
6、hout license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-KSC-SPEC-E-0002A August 24, 2010 KSC-SPEC-E-0002A_DD_08242010.docx iii CONTENT
7、S 1. SCOPE .1 2. APPLICABLE DOCUMENTS .1 2.1 Governmental .1 2.2 Non-Governmental 2 3. REQUIREMENTS .3 3.1 General Configuration and Dimension 3 3.2 Hazardproofing 3 3.3 Physical Construction of Standard Racks 4 3.4 Physical Construction of Heavy-Duty Racks 6 3.5 Physical Construction of Standard En
8、closures 7 3.6 Physical Construction of Heavy-Duty Enclosures .8 3.7 Physical Construction of Consoles 9 3.7.1 Base Construction 11 3.7.2 Hood Construction .11 3.7.3 Desktop Construction.12 3.8 Materials 12 3.9 Standard Plated Hardware 12 3.10 Nonstandard Plated Hardware .13 3.11 Mounting Provisions
9、 13 3.12 Bonding and Grounding .13 3.13 Sharp Projections .13 3.14 Welding 14 3.15 Installation of Fastening Devices .14 3.16 Finish and Coating .14 3.16.1 Cleaning and Pretreatment .14 3.16.2 Painting 14 3.17 Powder Coating 14 3.18 Marking and Identification 14 3.19 Component Interchangeability .14
10、 3.20 Electromagnetic Compatibility (EMC) 15 4. QUALITY ASSURANCE PROVISIONS 16 4.1 Quality Control System16 4.2 Governmental Inspection and Verification 16 4.3 Notification 16 4.4 Supplier Inspections .16 4.5 Special-Process Control .16 4.6 Records of Inspections and Tests .17 4.7 Workmanship .17 4
11、.8 Prototype Samples .17 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-KSC-SPEC-E-0002A August 24, 2010 iv 4.9 Acceptance Tests .17 4.9.1 Shielding 17 4.9.2 Fit and Interchangeability 17 4.9.3 Finish18 4.9.4 Electromagnetic Shielding .18 4.9.5 Envi
12、ronmental Testing .18 5. PREPARATION FOR DELIVERY 18 6. NOTES INTENDED USE 19 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-KSC-SPEC-E-0002A August 24, 2010 v ABBREVIATIONS, ACRONYMS, AND SYMBOLS ABA Architectural Barriers Act ADA Americans With Di
13、sabilities Act AWS American Welding Society c centi (1102) dB decibel E3electromagnetic environmental effects ECA Electronic Components Association EIA Electronic Industries Alliance EMC electromagnetic compatibility EMI electromagnetic interference FED Federal FSS facility support systems ft foot G
14、 giga (1109) GSE ground support equipment GSS ground support systems Hz hertz IEEE Institute of Electrical and Electronics Engineers k kilo (1103) KSC John F. Kennedy Space Center m meter; milli (1103) MIL military NASA National Aeronautics and Space Administration NEMA National Electrical Manufactu
15、rers Association NFPA National Fire Protection Association RU rack units SAE Society of Automotive Engineers STD standard TGIC triglycidyl isocyanurate Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-KSC-SPEC-E-0002A August 24, 2010 vi USG U.S. Stand
16、ard Gauge V volt VESA Video Electronics Standards Association Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-KSC-SPEC-E-0002A August 24, 2010 1MODULAR ELECTRICAL ENCLOSURES, RACKS, CONSOLES, AND ACCESSORIES, SPECIFICATION FOR 1. SCOPE This specifica
17、tion establishes the general characteristics, construction, and material requirements for industrial/commercial racks and enclosures for use by KSC designers as components of facility support systems (FSS), ground support systems (GSS), and ground support equipment (GSE). Design details are provided
18、 by engineering drawings or procurement specifications. Electrical racks are defined as floor-mounted, modular, framed containers designed to protect electrical/electronic equipment. Electrical enclosures are defined as floor/wall-mounted cabinets designed to protect electrical/electronic equipment.
19、 The requirements for racks/enclosures are categorized by their environment. Standard racks/enclosures are intended for indoor use where they will be protected from harsh vibration and acoustics. Heavy-duty racks/enclosures will be exposed to harsh launch environments. 2. APPLICABLE DOCUMENTS The fo
20、llowing documents form a part of this document to the extent specified herein. When this document is used for procurement, including solicitations, or is added to an existing contract, the specific revision levels, amendments, and approval dates of said documents shall be specified in an attachment
21、to the solicitation/statement of work/contract. Unless a specific edition is cited, the latest released edition applies. 2.1 Governmental Americans With Disabilities Act Federal Architectural Barriers Act FED-STD-595 Colors Used in Government Procurement KSC-DE-512 SM Facility, System, and Equipment
22、 General Design Requirements John F. Kennedy Space Center (KSC) KSC-E-165 Electrical Ground Support Equipment Fabrication, Specification for KSC-E-166 Installation and Assembly, Electrical Ground Support Equipment (GSE), Specification for Provided by IHSNot for ResaleNo reproduction or networking pe
23、rmitted without license from IHS-,-,-KSC-SPEC-E-0002A August 24, 2010 2 KSC-STD-164 Environmental Test Methods for Ground Support Equipment, Standard for KSC-STD-E-0002 Hazardproofing of Electrically Energized Equipment, Standard for KSC-STD-E-0015 Marking of Ground Support Equipment, Standard for M
24、IL-STD-171 Finishing of Metal and Wood Surfaces Military MIL-STD-889 Dissimilar Metals NASA-STD-5005 Standards for the Design and Fabrication of Ground Support Equipment National Aeronautics and Space Administration (NASA) NASA-STD-5008 Protective Coating of Carbon Steel, Stainless Steel, and Alumin
25、um on Launch Structures, Facilities, and Ground Support Equipment Copies of specifications, standards, drawings, and publications required by suppliers in connection with specified procurement functions should be obtained from the procuring activity or as directed by the contracting officer. 2.2 Non
26、-Governmental AWS D1.1 Structural Welding Code Steel Reference Manual American Welding Society (AWS) AWS D1.2 Structural Welding Code Aluminum AWS D1.3 Structural Welding Code Sheet Steel AWS D1.6 Structural Welding Code Stainless Steel AWS D17.2/17.2M Specification for Resistance Welding for Aerosp
27、ace Applications Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-KSC-SPEC-E-0002A August 24, 2010 3ECA EIA/ECA-310 Cabinets, Racks, Panels, and Associated Equipment Electronic Components, Assemblies and Materials Association (ECA) IEEE 299-1997 Stand
28、ard Method for Measuring the Effectiveness of Electromagnetic Shielding Enclosures Institute of Electrical and Electronics Engineers (IEEE) National Motor Freight Classification Rules National Classification Board NEMA 250 Enclosures for Electrical Equipment (1000 Volts Maximum) National Electrical
29、Manufacturers Association (NEMA) Uniform Classification Rules Official Classification Committee SAE J405 (R) Chemical Compositions of SAE Wrought Stainless Steels Society of Automotive Engineers (SAE) 3. REQUIREMENTS 3.1 General Configuration and Dimension Electronic racks, panels, mounting fixtures
30、, and modular enclosures shall conform to the configuration and dimension requirements of ECA EIA/ECA-310. (For soft metric units, refer to Section 4. For hard metric units, refer to Sections 5 and 6.) Adjustable mounting-rack angles shall be spaced according to ECA EIA/ECA-310. 3.2 Hazardproofing R
31、acks, panels, and enclosures in hazardous locations shall be hazardproofed in accordance with KSC-STD-E-0002. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-KSC-SPEC-E-0002A August 24, 2010 4 3.3 Physical Construction of Standard Racks a. Frame Cons
32、truction (1) Frames shall be fabricated from a minimum of U.S. Standard Gauge (USG) 14-gauge steel. (2) Seams shall be continuously welded and ground smooth. (3) Base construction shall be specified in engineering drawings or procurement specifications. The base shall be a solid plate. If internal e
33、quipment is not sensitive to electromagnetic interference (EMI), base construction may be open for air flow. (4) Adjustable utility rails and rack angles for equipment mounting may be specified in engineering drawings or procurement specifications. (5) All gasket mating surfaces shall be flush and t
34、rue. (6) All interfaces of stainless steel to stainless steel shall be lubricated before assembly to prevent galling. (7) Racks shall provide a stainless-steel ground stud 0.635 centimeter (cm) (0.25 inch) in diameter by 2.54 cm (1 inch) in length, with 7.87 threads per centimeter (20 threads per in
35、ch). Studs location shall be specified in the engineering drawings or procurement specifications. Studs shall typically be located on the top inside rear of each rack for connection to facility ground. b. Top- and Side-Panel Construction (1) Panels shall be fabricated from a minimum of USG 14-gauge
36、steel. When specified in engineering drawings or procurement specifications, top panels shall be removable. Otherwise, panels shall be fixed. (2) When specified in engineering drawings or procurement specifications, cutouts shall be provided for cable entry and venting. Otherwise, no cutouts are req
37、uired. (3) When specified in engineering drawings or procurement specifications, removable panels shall be provided with tamper-resistant fasteners, such as Security Torx. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-KSC-SPEC-E-0002A August 24, 20
38、10 5c. Door Construction (1) When specified in engineering drawings or procurement specifications, front and rear doors shall be solid (no windows). (2) Doors shall be configured with at least a three-point latching system, which includes a slide detent/pivoting mechanism integrated with the door ha
39、ndle. (3) Handles shall be padlock-type or shall accommodate locks with removable keys. (4) Hinges shall be liftoff-pin-type, permitting the door to be lifted up and off without removal of pins or other attaching hardware. The door hinge configuration shall allow for multiple-bay or side-by-side arr
40、angements such that the doors can swing a minimum of 135 degrees from the closed position to the fully opened position while adjacent cabinet doors are closed. (5) Racks may be procured with or without front or rear doors. Requirements for door venting or transparent doors shall be as specified by e
41、ngineering drawings or procurement specifications. (6) For applications where the base is enclosed (solid plate), engineering drawings or procurement specifications shall specify rear-door fan installation. The enclosure shall include ventilation accommodations equivalent to two 25.4 cm (10-inch) fa
42、ns configured as an inlet fan at the bottom and an exhaust fan at the top. As specified in engineering drawings or procurement specifications, inlet and outlet ventilation penetrations may be located in the rear door, front panel, bottom panel, or top panel. d. Finishing and Coating (1) Racks shall
43、be coated to protect them from the environment in which they will be located. (2) Painting shall be in accordance with NASA-STD-5008. (3) When powder coating is specified, exterior racks shall be treated with a triglycidyl isocyanurate (TGIC) powder coat system. At a minimum, interior racks shall be
44、 treated with a polyester urethane powder coat. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-KSC-SPEC-E-0002A August 24, 2010 6 e. Lifting Eyes (1) When specified, provisions shall be made for installation of removable lifting eyes on all four cor
45、ners of the top frame. (2) Composition of lifting eyes shall be compatible with the environment in which the enclosure is to be installed and galvanically compatible with the material from which the enclosure is constructed; for all outdoor stainless-steel enclosures, the lifting eyes shall be of st
46、ainless steel composition. 3.4 Physical Construction of Heavy-Duty Racks Heavy-duty racks shall adhere to the same specifications as standard racks, with the addition of the following specifications. Where conflicts arise, the specifications for physical construction of heavy-duty racks shall govern
47、. a. Frame Construction (1) Frames shall be fabricated from USG 10-gauge steel. (2) Seams shall be continuously welded and ground smooth. b. Top- and Side-Panel Construction (1) Top panels shall be fabricated from USG 12-gauge steel. (2) When specified in engineering drawings or procurement specific
48、ations, top panels shall be removable. Otherwise, top panels shall be fixed. c. Side-Panel Construction (1) Side panels shall be fabricated from USG 12-gauge steel. (2) One vertical hat stiffener shall be constructed of USG 12-gauge steel. d. Door Construction (1) When specified in engineering drawings or procurement specifications, cutouts shall be provided for ventilation. Otherwise, no cutouts are required. (2) One vertical hat stiffene
