1、*USACE / NAVFAC / AFCESA / NASA UFGS-33 71 02.00 20 (August 2008)-Preparing Activity: NAVFAC SupersedingUFGS 33 71 02.00 20 (February 2007)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2008*SECTION TABLE OF CONTENTSDIVISION 33 - UTILITIESSECTION 33 71 02.00
2、20UNDERGROUND ELECTRICAL DISTRIBUTION08/08PART 1 GENERAL1.1 REFERENCES1.2 DEFINITIONS1.3 SUBMITTALS1.4 QUALITY ASSURANCE1.4.1 Precast Underground Structures1.4.2 Certificate of Competency for Cable Splicer/Terminator1.4.3 Cable Installer Qualifications1.4.4 Regulatory Requirements1.4.5 Standard Prod
3、ucts1.4.5.1 Alternative Qualifications1.4.5.2 Material and Equipment Manufacturing DatePART 2 PRODUCTS2.1 CONDUIT, DUCTS, AND FITTINGS2.1.1 Rigid Metal Conduit2.1.1.1 Rigid Metallic Conduit, PVC Coated2.1.2 Intermediate Metal Conduit2.1.2.1 Intermediate Metal Conduit, PVC Coated2.1.3 Plastic Conduit
4、 for Direct Burial2.1.4 Plastic Duct for Concrete Encasement2.1.5 Bituminized Fiber Duct2.1.6 Innerduct2.1.7 Conduit Sealing Compound2.1.8 Fittings2.1.8.1 Metal Fittings2.1.8.2 PVC Conduit Fittings2.1.8.3 PVC Duct Fittings2.1.8.4 Outlet Boxes for Steel Conduit2.2 LOW VOLTAGE INSULATED CONDUCTORS AND
5、 CABLES2.2.1 Conductor Types2.2.2 Conductor Material2.2.3 Jackets2.2.4 Direct BuriedSECTION 33 71 02.00 20 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.2.5 In Duct2.2.6 Cable Marking2.3 LOW VOLTAGE WIRE CONNECTORS AND TERMINALS2.4 LOW VOLT
6、AGE SPLICES2.4.1 Heat Shrinkable Splice2.4.2 Cold Shrink Rubber Splice2.5 MEDIUM VOLTAGE CABLE2.5.1 Cable Configuration2.5.2 Conductor Material2.5.3 Insulation2.5.4 Shielding2.5.5 Neutrals2.5.6 Jackets2.6 MEDIUM VOLTAGE CABLE TERMINATIONS2.6.1 Cold-Shrink Type2.6.2 Heat Shrinkable Type2.6.3 Separabl
7、e Insulated Connector Type2.7 MEDIUM VOLTAGE CABLE JOINTS2.7.1 Heat-Shrinkable Joint2.7.2 Cold-Shrink Rubber-Type Joint2.8 TELECOMMUNICATIONS CABLING2.9 LIVE END CAPS2.10 TAPE2.10.1 Insulating Tape2.10.2 Buried Warning and Identification Tape2.10.3 Fireproofing Tape2.11 PULL ROPE2.12 GROUNDING AND B
8、ONDING2.12.1 Driven Ground Rods2.12.2 Grounding Conductors2.13 CAST-IN-PLACE CONCRETE2.14 UNDERGROUND STRUCTURES2.14.1 Cast-In-Place Concrete Structures2.14.2 Precast Concrete Structures, Risers and Tops2.14.2.1 General2.14.2.2 Design for Precast Structures2.14.2.3 Construction2.14.2.4 Joints2.14.3
9、Manhole Frames and Covers2.14.4 Handhole Frames and Covers2.14.5 Frames and Covers for Airfield Facilities2.14.6 Ductile Iron Frames and Covers for Airfield Facilities2.14.7 Brick for Manhole Collar2.14.8 Composite/Fiberglass Handholes and Covers2.15 CABLE SUPPORTS (RACKS, ARMS, AND INSULATORS)2.15.
10、1 Cable Racks2.15.2 Rack Arms2.15.3 Insulators2.16 CABLE TAGS IN MANHOLES2.16.1 Polyethylene Cable Tags2.17 CABLE TERMINATING CABINETS2.18 PROTECTIVE DEVICES AND COORDINATION2.19 SOURCE QUALITY CONTROL2.19.1 Arc-Proofing Test for Cable Fireproofing Tape2.19.2 Medium Voltage Cable Qualification and P
11、roduction TestsPART 3 EXECUTION3.1 INSTALLATIONSECTION 33 71 02.00 20 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.2 CABLE INSPECTION3.3 CABLE INSTALLATION PLAN AND PROCEDURE3.4 UNDERGROUND FEEDERS SUPPLYING BUILDINGS3.5 UNDERGROUND STRUCT
12、URE CONSTRUCTION3.5.1 Cast-In-Place Concrete Structures3.5.2 Precast Concrete Construction3.5.3 Pulling-In Irons3.5.4 Cable Racks, Arms and Insulators3.5.5 Field Painting3.6 DIRECT BURIAL CABLE SYSTEM3.6.1 Trenching3.6.2 Cable Installation.3.6.3 Splicing3.6.4 Bends3.6.5 Horizontal Slack3.6.6 Identif
13、ication Slabs Markers3.7 UNDERGROUND CONDUIT AND DUCT SYSTEMS3.7.1 Requirements3.7.2 Treatment3.7.3 Conduit Cleaning3.7.4 Jacking and Drilling Under Roads and Structures3.7.5 Galvanized Conduit Concrete Penetrations3.7.6 Multiple Conduits3.7.7 Conduit Plugs and Pull Rope3.7.8 Conduit and Duct Withou
14、t Concrete Encasement3.7.8.1 Encasement Under Roads and Structures3.7.9 Duct Encased in Concrete3.7.9.1 Connections to Manholes3.7.9.2 Connections to Existing Underground Structures3.7.9.3 Connections to Existing Concrete Pads3.7.9.4 Connections to Existing Ducts3.7.9.5 Partially Completed Duct Bank
15、s3.7.9.6 Removal of Ducts3.8 CABLE PULLING3.8.1 Cable Lubricants3.9 CABLES IN UNDERGROUND STRUCTURES3.9.1 Cable Tag Installation3.10 CONDUCTORS INSTALLED IN PARALLEL3.11 LOW VOLTAGE CABLE SPLICING AND TERMINATING3.11.1 Terminating Aluminum Conductors3.12 MEDIUM VOLTAGE CABLE TERMINATIONS3.13 MEDIUM
16、VOLTAGE CABLE JOINTS3.13.1 Joints in Shielded Cables3.14 CABLE END CAPS3.15 LIVE END CAPS3.16 FIREPROOFING OF CABLES IN UNDERGROUND STRUCTURES3.16.1 Fireproofing Tape3.16.2 Tape-Wrap3.17 GROUNDING SYSTEMS3.17.1 Grounding Electrodes3.17.2 Grounding Connections3.17.3 Grounding Conductors3.17.4 Ground
17、Cable Crossing Expansion Joints3.17.5 Manhole Grounding3.17.6 Fence Grounding3.18 EXCAVATING, BACKFILLING, AND COMPACTING3.18.1 Reconditioning of Surfaces3.18.1.1 Unpaved Surfaces3.18.1.2 Paving RepairsSECTION 33 71 02.00 20 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted
18、without license from IHS-,-,-3.19 CAST-IN-PLACE CONCRETE3.19.1 Concrete Slabs for Equipment3.19.2 Sealing3.20 FIELD QUALITY CONTROL3.20.1 Performance of Field Acceptance Checks and Tests3.20.1.1 Medium Voltage Cables3.20.1.2 Grounding System3.20.2 Follow-Up Verification- End of Section Table of Cont
19、ents -SECTION 33 71 02.00 20 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-33 71 02.00 20 (August 2008)-Preparing Activity: NAVFAC SupersedingUFGS 33 71 02.00 20 (February 2007)UNIFIED FACILITIES GUIDE SPE
20、CIFICATIONSReferences are in agreement with UMRL dated July 2008*SECTION 33 71 02.00 20UNDERGROUND ELECTRICAL DISTRIBUTION08/08*NOTE: This guide specification covers the requirements for underground electrical work.Edit this guide specification for project specific requirements by adding, deleting,
21、or 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 and suggestions on this guide specification are welcome and should be directed to t
22、he technical proponent of the specification. A listing of technical proponents, including their organization designation and telephone number, is on the Internet.Recommended changes to a UFGS should be submitted as a Criteria Change Request (CCR).*NOTE: This guide specification does not cover all po
23、ssible methods or requirements for providing underground facilities. To do so would be to produce an involved, confusing document. This guide specification presents the usual methods and the most used alternatives. Different materials and methods, properly specified, indicated, and economically used
24、 will be acceptable when approved by cognizant authority.*SECTION 33 71 02.00 20 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*Note: This section use the following manhole / handhole sketches and details found at: http:/www.wbdg.org/ccb/NAVG
25、RAPH/graphtoc.pdf.LIST OF SKETCHESSketches are available in metric (SI) and U.S. Customary (IP) system dimensions. Sketch titles and style numbers are unchanged for both types.The metric values indicated are a conversion of the IP system dimensions.Do not include list of sketches, or sketches themse
26、lves, in project specifications. Use manhole / handhole sketches as details on drawings whenever possible. If special features are required for a project, donot modify sketches, but indicate these changes on notes below the sketch. The “UG“ style numbers and dates should remain on the drawingdetails
27、.SKETCH NUMBER TITLEUG - 1 Standard Electrical Manhole (Nontraffic), Types 1 and 2UG - 2 Standard Electrical Manhole (Traffic), Types 3 and 4UG - 3 Standard Electrical Manhole (Airfield), Types 5 and 6UG - 4 Standard Electrical Handhole (Nontraffic), Types 1 and 2UG - 5 Standard Electrical Handhole
28、(Traffic/Airfield), Types 3 and 4UG - 6 Standard Electrical Handhole (Nontraffic), (Composite/Fiberglass) Types 5, 6, 7, 8 and 9UG - 7 Details (Pulling-In Irons, Cable Rack, and Duct Entrance)NOTE: TO DOWNLOAD UFGS GRAPHICSGo to http:/www.wbdg.org/ccb/NAVGRAPH/graphtoc.pdf.*NOTE: The following infor
29、mation shall be shown on the project drawings:1. Where specification identifies type, size, color, finish, or other definitive information to be “as indicated,“ the engineer shall include the information on the drawings.2. Location of ducts, and cables.SECTION 33 71 02.00 20 Page 6Provided by IHSNot
30、 for ResaleNo reproduction or networking permitted without license from IHS-,-,-3. Types of wire and cable; number and sizes of conductors.4. Special conditions.*PART 1 GENERAL1.1 REFERENCES*NOTE: Issue (date) of references included in project specifications need not be more current than provided by
31、 the latest guide specification. Use of SpecsIntact automated reference checking is recommended for projects based on older guide specifications.*The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic de
32、signation only.ACI INTERNATIONAL (ACI)ACI 318M (2005) Metric Building Code Requirements for Structural Concrete and CommentaryACI SP-66 (2004) ACI Detailing ManualAMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS (AASHTO)AASHTO HB-17 (2002; Errata 2003; Errata 2005) Standard Specifi
33、cations for Highway BridgesAASHTO M 198 (2005) Standard Specification for Joints for Concrete Pipe, Manholes and Precast Box Sections Using Preformed Flexible Joint SealantsAMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)ANSI C135.30 (1988) Zinc-Coated Ferrous Ground Rods for Overhead or Underground Lin
34、e ConstructionAMERICAN WELDING SOCIETY (AWS)AWS D1.1/D1.1M (2006; Errata 2006) Structural Welding Code - SteelASSOCIATION OF EDISON ILLUMINATING COMPANIES (AEIC)AEIC CS8 (2000) Extruded Dielectric Shielded Power Cables Rated 5 Through 46 kVSECTION 33 71 02.00 20 Page 7Provided by IHSNot for ResaleNo
35、 reproduction or networking permitted without license from IHS-,-,-ASTM INTERNATIONAL (ASTM)ASTM A 48/A 48M (2003) Standard Specification for Gray Iron CastingsASTM B 1 (2001; R 2007) Standard Specification for Hard-Drawn Copper WireASTM B 231/B 231M (2004) Standard Specification for Concentric-Lay-
36、Stranded Aluminum 1350 ConductorsASTM B 3 (2001; R 2007) Standard Specification for Soft or Annealed Copper WireASTM B 400 (2004) Standard Specification for Compact Round Concentric-Lay-Stranded Aluminum 1350 ConductorASTM B 496 (2004) Standard Specification for Compact Round Concentric-Lay-Stranded
37、 Copper ConductorsASTM B 609/B 609M (1999; R 2004) Standard Specification for Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical purposesASTM B 8 (2004) Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or SoftASTM B 800 (2005) Standard
38、 Specification for 8000 Series Aluminum Alloy Wire for Electrical Purposes-Annealed and Intermediate TempersASTM B 801 (2007) Standard Specification for Concentric-Lay-Stranded Conductors of 8000 Series Aluminum Alloy for Subsequent Covering or InsulationASTM C 139 (2005) Standard Specification for
39、Concrete Masonry Units for Construction of Catch Basins and ManholesASTM C 309 (2007) Standard Specification for Liquid Membrane-Forming Compounds for Curing ConcreteASTM C 32 (2005) Standard Specification for Sewer and Manhole Brick (Made from Clay or Shale)ASTM C 478 (2008) Standard Specification
40、for Precast Reinforced Concrete Manhole SectionsASTM C 478M (2008) Standard Specification for Precast Reinforced Concrete Manhole Sections (Metric)SECTION 33 71 02.00 20 Page 8Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASTM C 857 (2007) Standard
41、 Practice for Minimum Structural Design Loading for Underground Precast Concrete Utility StructuresASTM F 512 (2006) Smooth-Wall Poly (Vinyl Chloride) (PVC) Conduit and Fittings for Underground InstallationINSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)IEEE C2 (2007; Errata 2007) National E
42、lectrical Safety CodeIEEE C37.20.3 (2001) Metal-Enclosed Interrupter SwitchgearIEEE Std 100 (2000) The Authoritave Dictionary of IEEE Standards TermsIEEE Std 386 (2006) Standard for Separable Insulated Connector Systems for Power Distribution Systems Above 600VIEEE Std 400.2 (2004) Guide for Field T
43、esting of Shielded Power Cable Systems Using Very Low Frequency (VLF)IEEE Std 404 (2006) Extruded and Laminated Dielectric Shielded Cable Joints Rated 2500 V Through 500 000 VIEEE Std 48 (1996; R 2003) Test Procedures and Requirements for Alternating-Current Cable Terminations 2.5 kV through 765 kVI
44、EEE Std 81 (1983) Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Ground System (Part 1)Normal MeasurementsINSULATED CABLE ENGINEERS ASSOCIATION (ICEA)ICEA S-94-649 (2004) Standard for Concentric Neutral Cable Rated 5 Through 46 KVINTERNATIONAL ELECTRICAL T
45、ESTING ASSOCIATION (NETA)NETA ATS (2003) Acceptance Testing SpecificationsNATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)NEMA C119.1 (2006) Sealed Insulated Underground Connector Systems Rated 600 VoltsNEMA RN 1 (2005) Standard for Polyvinyl Chloride (PVC) Externally Coated Galvanized Rigid Steel Conduit and Interm
