1、*USACE / NAVFAC / AFCESA / NASA UFGS-26 23 00.00 40 (February 2011)-Preparing Activity: NASA SupersedingUFGS-26 23 00.00 40 (August 2010)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated April 2011*SECTION TABLE OF CONTENTSDIVISION 26 - ELECTRICALSECTION 26 23 00.00
2、40SWITCHBOARDS AND SWITCHGEAR02/11PART 1 GENERAL1.1 REFERENCES1.2 RELATED REQUIREMENTS1.3 DEFINITIONS1.4 SUBMITTALS1.5 QUALITY ASSURANCE1.5.1 Predictive Testing And Inspection Technology Requirements1.5.2 SwitchboardSwitchgear Product Data1.5.3 SwitchboardSwitchgear Drawings1.5.4 Regulatory Requirem
3、ents1.5.5 Standard Products1.5.5.1 Alternative Qualifications1.5.5.2 Material and Equipment Manufacturing Date1.6 MAINTENANCE1.6.1 SwitchboardSwitchgear Operation and Maintenance Data1.6.2 Assembled Operation and Maintenance Manuals1.6.3 Spare Parts1.7 WARRANTYPART 2 PRODUCTS2.1 PRODUCT COORDINATION
4、2.2 SWITCHBOARDSWITCHGEAR2.2.1 Ratings2.2.2 Construction2.2.2.1 Enclosure2.2.2.2 Bus Bars2.2.2.3 Main Section2.2.2.4 Distribution Sections2.2.2.5 Combination Sections2.2.2.6 Auxiliary Sections2.2.2.7 Handles2.2.3 Protective Device2.2.3.1 Power Circuit Breaker2.2.3.2 Insulated-Case BreakerSECTION 26
5、23 00.00 40 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.2.3.3 Molded-Case Circuit Breaker2.2.3.4 Fusible Switches2.2.3.5 Integral Combination Breaker and Current-Limiting Fuses2.2.4 Drawout Breakers2.2.5 Electronic Trip Units2.2.6 Electro
6、nic Trip Unit Central Monitor2.2.7 Instruments2.2.7.1 Ac Ammeters2.2.7.2 Ac Voltmeters2.2.7.3 Instrument Control Switches2.2.8 Watthour and Digital Meters2.2.8.1 Digital Meters2.2.8.2 Electronic Watthour Meter2.2.8.3 Electro-Mechanical Watthour Meters2.2.9 Current Transformers2.2.10 Transformer2.2.1
7、1 Meter Fusing2.2.12 Heaters2.2.13 Terminal Boards2.2.14 Wire Marking2.3 MANUFACTURERS NAMEPLATE2.4 FIELD FABRICATED NAMEPLATES2.5 SOURCE QUALITY CONTROL2.5.1 Equipment Test Schedule2.5.2 SwitchboardSwitchgear Design Tests2.5.2.1 Design Tests2.5.2.2 Additional design tests2.5.3 SwitchboardSwitchgear
8、 Production Tests2.6 COORDINATED POWER SYSTEM PROTECTIONPART 3 EXECUTION3.1 INSTALLATION3.2 GROUNDING3.2.1 Grounding Electrodes3.2.2 Equipment Grounding3.2.3 Connections3.2.4 Grounding and Bonding Equipment3.3 INSTALLATION OF EQUIPMENT AND ASSEMBLIES3.3.1 Switchboard3.3.2 Switchgear3.3.3 Meters and
9、Instrument Transformers3.3.4 Field Applied Painting3.3.5 Galvanizing Repair3.3.6 Field Fabricated Nameplate Mounting3.4 FOUNDATION FOR EQUIPMENT AND ASSEMBLIES3.4.1 Exterior Location3.4.2 Interior Location3.5 FIELD QUALITY CONTROL3.5.1 Performance of Acceptance Checks and Tests3.5.1.1 Switchboard As
10、semblies3.5.1.2 Switchgear3.5.1.3 Circuit Breakers - Low Voltage - Power3.5.1.4 Circuit Breakers3.5.1.5 Current Transformers3.5.1.6 Metering and Instrumentation3.5.1.7 Grounding System3.5.2 Follow-Up VerificationSECTION 26 23 00.00 40 Page 2Provided by IHSNot for ResaleNo reproduction or networking
11、permitted without license from IHS-,-,- End of Section Table of Contents -SECTION 26 23 00.00 40 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-26 23 00.00 40 (February 2011)-Preparing Activity: NASA Supers
12、edingUFGS-26 23 00.00 40 (August 2010)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated April 2011*SECTION 26 23 00.00 40SWITCHBOARDS AND SWITCHGEAR02/11*NOTE: This guide specification covers the requirements for free standing deadfront switchboard assemblies rated 6
13、000 amperes or less, 600 volts or less, and metal-enclosed low-voltage power circuit-breaker switchgear assemblies in either interior or exterior locations. Rename the section appropriately if this section is used to specify only switchboards or only switchgear. Use Section 26 20 00 INTERIOR DISTRIB
14、UTION SYSTEM, for power and distribution panelboards rated 1200 amperes or less and consisting of only group mounted stationary molded case circuit breakers and fusible or nonfusible switches designed to be placed in a cabinet or cutout box.When the proposed switchboard or switchgear is connected to
15、 a secondary unit substation, coordinate with Section 26 11 16 SECONDARY UNIT SUBSTATIONS.This specification is not intended to be used for generator control switchboards without extensive modification and coordination with applicable diesel engine-generator guide specifications.Adhere to UFC 1-300-
16、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, or revising text. For bracketed items, choose applicable items
17、(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 should be submitted as a Criteria Change Request (CCR).*SECTION
18、 26 23 00.00 40 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*NOTE: The following information should be indicated on the project drawings or specified in the project specifications:1. Single-line diagram showing buses and interrupting device
19、s with interrupting capacities; current transformers with ratings; instruments and meters required; and description of instruments and meters.2. Location, space available, arrangement, and elevations of switchboards or switchgear.3. Grounding plan.4. Type and number of cables, size of conductors for
20、 each power circuit, and point of entry (top or bottom).5. Special conditions, such as altitude, temperature and humidity, exposure to fumes, vapors, dust, and gases; and seismic requirements.*PART 1 GENERAL1.1 REFERENCES*NOTE: This paragraph is used to list the publications cited in the text of the
21、 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 Sections Reference Article to automatically plac
22、e 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 specification when you choose to reconcile references in the publish print process
23、.*The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only.AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)ANSI C12.15 (1990) Solid-State Demand Registers for Electromechanical Watthour MetersSECT
24、ION 26 23 00.00 40 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSI C39.1 (1981; R 1992) Requirements for Electrical Analog Indicating InstrumentsASTM INTERNATIONAL (ASTM)ASTM A123/A123M (2009) Standard Specification for Zinc (Hot-Dip Galva
25、nized) Coatings on Iron and Steel ProductsASTM A153/A153M (2009) Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel HardwareASTM A167 (1999; R 2009) Standard Specification for Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and StripASTM A653/A653M (2010) Standard S
26、pecification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip ProcessASTM A780/A780M (2009) Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized CoatingsASTM B 187/B 187M (2006) Standard Specification for Copper, Bus Bar, R
27、od and Shapes and General Purpose Rod, Bar and ShapesASTM B 317/B 317M (2007) Standard Specification for Aluminum-Alloy Extruded Bar, Rod, Tube, Pipe, and Structural Profiles for Electrical Purposes (Bus Conductor)ASTM D 149 (2009) Dielectric Breakdown Voltage and Dielectric Strength of Solid Electr
28、ical Insulating Materials at Commercial Power FrequenciesASTM D 1535 (2008e1) Specifying Color by the Munsell SystemASTM D 709 (2001; R 2007) Laminated Thermosetting MaterialsINSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)IEEE 81 (1983) Guide for Measuring Earth Resistivity, Ground Impedanc
29、e, and Earth Surface Potentials of a Ground SystemIEEE C12.16 (1991) Solid-State Electricity MetersIEEE C2 (2007; Errata 06-1; TIA 07-1; TIA 07-2; TIA 07-3; Errata 07-2; TIA 08-4; TIA 08-5; TIA 08-6; TIA 08-7; TIA 08-8; TIA 08-9; SECTION 26 23 00.00 40 Page 6Provided by IHSNot for ResaleNo reproduct
30、ion or networking permitted without license from IHS-,-,-TIA 08-10; TIA 08-11; TIA 09-12; TIA 09-13; TIA 09-14; Errata 09-3; TIA 09-15; TIA 09-16; TIA 10-17) National Electrical Safety CodeIEEE C37.13 (2008; INT 1 2009) Standard for Low-Voltage AC Power Circuit Breakers Used in EnclosuresIEEE C37.20
31、.1 (2002; INT 1 2005; AMD A 2005; AMD B 2006; R 2007) Standard for Metal-Enclosed Low-Voltage Power Circuit-Breaker SwitchgearIEEE C37.90.1 (2002; Errata 2003; Errata 2004) Standard for Surge Withstand Capability (SWC) Tests for Relays and Relay Systems Associated with Electric Power ApparatusIEEE C
32、57.12.01 (2005) General Requirements for Dry-Type Distribution and Power Transformers Including Those with Solid-Cast and/or Resin-Encapsulated WindingsIEEE C57.12.28 (2005) Standard for Pad-Mounted Equipment - Enclosure IntegrityIEEE C57.12.29 (2005) Standard for Pad-Mounted Equipment - Enclosure I
33、ntegrity for Coastal EnvironmentsIEEE C57.13 (2008) Standard Requirements for Instrument TransformersIEEE Stds Dictionary (2009) IEEE Standards Dictionary: Glossary of Terms R 2002) Registers - Mechanical DemandANSI/NEMA PB 2.1 (2007) General Instructions for Proper Handling, Installation, Operation
34、 and Maintenance of Deadfront Distribution SECTION 26 23 00.00 40 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Switchboards Rated 600 V or LessNEMA ICS 6 (1993; R 2006) EnclosuresNEMA LI 1 (1998) Industrial Laminating Thermosetting ProductsN
35、EMA PB 2 (2006) Deadfront Distribution SwitchboardsNEMA/ANSI C12.10 (2004) Physical Aspects of Watthour Meters - Safety StandardsNATIONAL FIRE PROTECTION ASSOCIATION (NFPA)NFPA 70 (2011) National Electrical CodeUNDERWRITERS LABORATORIES (UL)UL 1558 (1999; Reprint Apr 2010) Metal-Enclosed Low-Voltage
36、 Power Circuit Breaker SwitchgearUL 198M (2003; Reprint Oct 2007) Standard for Mine-Duty FusesUL 467 (2007) Grounding and Bonding EquipmentUL 489 (2009) Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker EnclosuresUL 512 (1993; R 1993 thru 2008) Standard for FuseholdersUL 891 (2
37、005) Switchboards1.2 RELATED REQUIREMENTSSection 26 08 00 APPARATUS INSPECTION AND TESTING applies to this section, with the additions and modifications specified herein.1.3 DEFINITIONSUnless otherwise specified or indicated, electrical and electronics terms used in these specifications, and on the
38、drawings, use as defined in IEEE Stds Dictionary.1.4 SUBMITTALS*NOTE: Choose between switchboards and switchgear in brackets throughout this specification. Modify appropriately if both are used in a job.*NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES and
39、 edit the following list to reflect only the submittals SECTION 26 23 00.00 40 Page 8Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-required for the project. Submittals should be kept to the minimum required for adequate quality control.A “G” follow
40、ing a submittal item indicates that the submittal requires Government approval. Some submittals are already marked with a “G”. Only delete an existing “G” 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 suffi
41、ciently important or complex in context of the project.For submittals requiring Government approval on Army projects, a code of up to three characters within the submittal tags may be used following the “G“ designation to indicate the approving authority. Codes for Army projects using the Resident M
42、anagement 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, Air Force, and
43、NASA projects.Choose the first bracketed item for Navy, Air Force and NASA projects, or choose the second bracketed item for Army projects.*Government approval is required for submittals with a “G“ designation; submittals not having a “G“ designation are for Contractor Quality Control approval.for i
44、nformation only. When used, a designation following the “G“ designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:SD-02 Shop DrawingsSwitchboardSwitchgear Drawings; G; G, _Include wiring diag
45、rams and installation details of equipment indicating proposed location, layout and arrangement, control panels, accessories, piping, ductwork, and other items that must be shown to ensure a coordinated installation. Wiring diagrams shall identify circuit terminals and indicate the internal wiring for each item
