1、*USACE / NAVFAC / AFCESA / NASA UFGS-08 56 46.20 20 (August 2011)-Preparing Activity: NAVFAC SupersedingUFGS-08 56 46.20 20 (April 2006) UFGS-13094N (December 2001)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2011*SECTION TABLE OF CONTENTSDIVISION 08 - OPEN
2、INGSSECTION 08 56 46.20 20RADIO FREQUENCY SHIELDED ENCLOSURES, WELDED TYPE08/11PART 1 GENERAL1.1 REFERENCES1.2 GENERAL REQUIREMENTS1.2.1 Mechanical Work1.2.2 Electrical Work1.2.3 Acoustical Ceiling System1.3 SUBMITTALS1.4 RELIABILITY1.5 DELIVERY AND STORAGE1.6 QUALITY ASSURANCE1.6.1 Certifications1.
3、6.1.1 Performance Test Plan1.6.1.2 Qualifications of the Shielding Enclosure Testing Agency1.6.1.3 Door Static Load Test1.6.1.4 Door Sag Test1.6.1.5 Swinging Door Closure TestPART 2 PRODUCTS2.1 SHIELDED ENCLOSURE CHARACTERISTICS2.1.1 Radio Frequency Interference Attenuation2.1.2 Sound Transmission C
4、lass (STC)2.2 STEEL AND WELDING MATERIALS2.2.1 Shielding Steel2.2.2 Welding Electrodes2.2.3 Floor2.2.3.1 Floor Finish2.2.3.2 Subfloor2.2.3.3 Heavy Duty Floor2.3 DOOR ASSEMBLIES2.3.1 Finger Stock2.3.2 Latching Type2.3.3 Nonlatching Type2.3.4 Special Door AssembliesSECTION 08 56 46.20 20 Page 1Provide
5、d by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.3.4.1 Hydraulic or Pneumatic Sealing Mechanism2.3.4.2 Sliding Doors2.4 LINE FILTERS2.4.1 Power Line Filters2.4.2 Telephone and Signal Line Filters2.5 WAVEGUIDE-TYPE AIR VENTS2.6 GROUNDING STUD2.7 SERVICE ENT
6、RANCE PLATES (SET-UP PANELS)2.8 NAMEPLATES2.9 LIGHTING2.10 EXHAUST FANS2.11 COAXIAL CABLE PENETRATIONSPART 3 EXECUTION3.1 SHIELDING STEEL INSTALLATION3.1.1 Surface Preparation3.1.2 Installation Supervision3.1.3 Floor Panel Setting3.1.4 Welding3.2 DOOR ASSEMBLIES3.3 LINE FILTERS3.4 WAVEGUIDE-TYPE AIR
7、 VENTS3.5 EXHAUST FAN3.6 CONDUCTOR INSTALLATION3.7 GROUNDING3.8 SERVICE ENTRANCE PLATE3.9 FIELD TESTS3.9.1 Weld Testing3.9.2 Seam Leak Detection Testing3.9.3 Attenuation Testing3.9.3.1 Test Procedure, Frequencies, and Equipment3.9.3.2 Additional Test Points3.9.3.3 Final In Service Testing- End of Se
8、ction Table of Contents -SECTION 08 56 46.20 20 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-08 56 46.20 20 (August 2011)-Preparing Activity: NAVFAC SupersedingUFGS-08 56 46.20 20 (April 2006) UFGS-13094N
9、 (December 2001)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2011*SECTION 08 56 46.20 20RADIO FREQUENCY SHIELDED ENCLOSURES, WELDED TYPE08/11*NOTE: This guide specification covers the requirements for radio frequency shielded enclosures, welded type in size
10、s under 50 square meters 500 square feet.Adhere to UFC 1-300-02 Unified Facilities Guide Specifications (UFGS) Format Standard when editing this guide specification or preparing new project specification sections. Edit this guide specification for project specific requirements by adding, deleting, o
11、r revising text. For bracketed items, choose applicable items(s) or insert appropriate information.Remove information and requirements not required in respective project, whether or not brackets are present.Comments, suggestions and recommended changes for this guide specification are welcome and sh
12、ould be submitted as a Criteria Change Request (CCR).*NOTE: For larger enclosures and for High Altitude Electromagnetic Pulse (HEMP) protected enclosures, contact NAVFAC Engineering Innovation and Criteria Office (Code EICO) before beginning design. The electrical designer should refer to MIL-HDBK-4
13、19 Volumes I and II for special grounding and bonding requirements for EMC enclosures and to NACSIM 5203 for TEMPEST enclosures. All metallic electrical conduits which penetrate a TEMPEST shield must be isolated within 50 mm 2 inches of the exterior of the shield by a nonmetallic conduit section at
14、least 150 mm six inches long to prevent conduction of information from the shielded enclosure. Although not addressed in this specification, it is recognized that fiber optic cable has gained acceptance as an effective method of transmitting SECTION 08 56 46.20 20 Page 3Provided by IHSNot for Resale
15、No reproduction or networking permitted without license from IHS-,-,-data across the boundary of shielded enclosures without filtering. If fiber optic cable is used, describe the penetration of the shield in detail. For a discussion of the advantages and disadvantages of fiber optic systems see NAVF
16、AC DM-12.02. Designer should consult these documents and other appropriate sources before applying this guide specification to large scale EMI enclosures to HEMP and to TEMPEST Projects. The potential requirement for thermal expansion joints inherent to large scale enclosures is not addressed in thi
17、s guide specification. The extent and location of the work to be accomplished and wiring, equipment, and accessories necessary for a complete installation should be indicated on the project drawings.*NOTE: The following information shall be shown on the project drawings:1. Assembly details;2. Penetr
18、ation details;3. Location and method of mounting shielded enclosure within building;4. Location of mechanical and electrical equipment within shielded enclosure;5. Interior wall finish;6. Suspended ceiling; and7. Raised computer floor.*PART 1 GENERAL1.1 REFERENCES*NOTE: This paragraph is used to lis
19、t the publications cited in the text of the guide specification. The publications are referred to in the text by basic designation only and listed in this paragraph by organization, designation, date, and title.Use the Reference Wizards Check Reference feature when you add a RID outside of the Secti
20、ons Reference Article to automatically place the reference in the Reference Article. Also use the Reference Wizards Check Reference feature to update the issue dates.References not used in the text will automatically be deleted from this section of the project SECTION 08 56 46.20 20 Page 4Provided b
21、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-specification when you choose to reconcile references in the publish print process.*The publications listed below form a part of this specification to the extent referenced. The publications are referred to withi
22、n the text by the basic designation only.AIR MOVEMENT AND CONTROL ASSOCIATION INTERNATIONAL (AMCA)AMCA 210 (2007) Laboratory Methods of Testing Fans for Aerodynamic Performance RatingAMERICAN INSTITUTE OF STEEL CONSTRUCTION (AISC)AISC 325 (2011) Steel Construction ManualAMERICAN WELDING SOCIETY (AWS
23、)AWS D1.1/D1.1M (2010) Structural Welding Code - SteelASTM INTERNATIONAL (ASTM)ASTM A1008/A1008M (2011) Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloy with Improved Formability, Solution Hardened, and Bake HardenedASTM A5
24、68/A568M (2011a) Standard Specifications for Steel, Sheet, Carbon, Structural, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, General Requirements forASTM B194 (2008) Standard Specification for Copper-Beryllium Alloy Plate, Sheet, Strip, and Rolled BarASTM E 90 (2009) Standard Test Method
25、 for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and ElementsASTM F 1066 (2004e1; R 2010) Standard Specification for Vinyl Composition Floor TileINSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)IEEE 299 (2006) Standard Method for Measuring the Effectivene
26、ss of Electromagnetic Shielding EnclosuresINTERNATIONAL CODE COUNCIL (ICC)ICC UBC (1997; Erratas Vol 1, 2 Vol 1 Vol 2 10/2001) Uniform Building CodeSECTION 08 56 46.20 20 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NATIONAL FIRE PROTECTION
27、ASSOCIATION (NFPA)NFPA 70 (2011; TIA 11-1; Errata 2011) National Electrical CodeU.S. DEPARTMENT OF DEFENSE (DOD)MIL-PRF-15733 (2010; Rev J, Supp 1 2010) Filters and Capacitors, Radio Frequency Interference, General Specification forMIL-STD-220 (2009; Rev C) Method of Insertion Loss MeasurementMIL-ST
28、D-461 (2007; Rev F) Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment1.2 GENERAL REQUIREMENTS*NOTE: Insert additional details describing the specific project for which this specification is being used. Projects involving military communications
29、equipment must be designed to incorporate the applicable requirements of MIL-STD-188-124, “Grounding, Bonding, and Shielding for Common Long Haul/Tactical Communication Systems.“ A/An 2400 by 2400 by 2400 mm 8 by 8 by 8 feet test module has proven beneficial on complex, extra large, or extra critica
30、l construction projects. The module simulates the Contractors welding techniques, penetration techniques, and testing techniques prior to trying them out in the actual building shield. The test module fabrication and testing plan should also detail the SELDS and NSA 65-6/IEEE 299 test to be performe
31、d including test dates so that an expert government witness may be present for the tests. The results of all module testing must be included in a final test module reports. Be aware that standard manufactured shielded doors are not designed for exposure to weather.*Section 26 00 00.00 20 BASIC ELECT
32、RICAL MATERIALS AND METHODS applies to this section, with the additions and modifications specified herein. The enclosures shall be designed and fabricated in accordance with ICC UBC for free-standing structures. The enclosures shall be mounted on rollers fitted with forklift channels in the base fi
33、tted with lifting eyes on the roof. Provide enclosure complete with power line filters, telephone/signal line filters, RF air vents, penetrations for compressed air lines, water lines, and _, _, coaxial-cables lighting fixtures, workbenches with convenience outlets, and door assembly. Provide each i
34、tem with fittings and hardware necessary for a complete and operable RF shielded enclosure. Where two or more units of the same type, class, and size of equipment are required, units shall be products of a single manufacturer. Completely isolate the enclosure electrically from the building in which
35、the enclosure is to be SECTION 08 56 46.20 20 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-installed.1.2.1 Mechanical Work*NOTE: Modify or delete these paragraphs as required for each project. Additional items such as raised computer floors
36、may be specified in the same manner.*NOTE: Insert appropriate Section number and title in blank below using format per UFC 1-300-02, “Unified Facilities Guide Specifications (UFGS) Format Standard“.*Provide complete shielded enclosures including work specified in _and _.1.2.2 Electrical Work*NOTE: M
37、odify or delete these paragraphs as required for each project. Additional items such as raised computer floors may be specified in the same manner.*NOTE: Insert appropriate Section number and title in blank below using format per UFC 1-300-02.*Conform to the requirements of the NFPA 70, National Ele
38、ctrical Code. Provide complete shielded enclosures including work specified in _and _.1.2.3 Acoustical Ceiling System*NOTE: Modify or delete these paragraphs as required for each project. Additional items such as raised computer floors may be specified in the same manner.*Provide as specified in Sec
39、tion 09 51 00 ACOUSTICAL CEILINGS.1.3 SUBMITTALS*NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES and edit the following list to reflect only the submittals required for the project. Submittals should be kept to the minimum required for adequate quality co
40、ntrol.A “G” following a submittal item indicates that the submittal requires Government approval. Some submittals are already marked with a “G”. Only SECTION 08 56 46.20 20 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-delete an existing “G”
41、if the submittal item is not complex and can be reviewed through the Contractors Quality Control system. Only add a “G” if the submittal is sufficiently important or complex in context of the project.For submittals requiring Government approval on Army projects, a code of up to three characters with
42、in the submittal tags may be used following the “G“ designation to indicate the approving authority. Codes for Army projects using the Resident Management System (RMS) are: “AE“ for Architect-Engineer; “DO“ for District Office (Engineering Division or other organization in the District Office); “AO“ for Area Office; “RO“ for Resident Office; and “PO“ for Project Office. Codes following the “G“ typically are not used for Navy,
