1、*USACE / NAVFAC / AFCESA / NASA UFGS-33 75 00.00 40 (November 2008)-Preparing Activity: NASA SupersedingUFGS-33 75 00.00 40 (August 2008)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated October 2008*SECTION TABLE OF CONTENTSDIVISION 33 - UTILITIESSECTION 33 75 00.00
2、 40SWITCHGEAR AND PROTECTION DEVICES11/08PART 1 GENERAL1.1 REFERENCES1.2 SYSTEM DESCRIPTION1.3 SUBMITTALS1.4 FACTORY TESTING1.5 MANUFACTURER QUALIFICATIONS1.6 ENGINEER QUALIFICATIONS1.6.1 Engineering Services1.6.1.1 Preliminary Survey and System Coordination Study1.6.1.2 Time/Current Curves and Sett
3、ingsPART 2 PRODUCTS2.1 EQUIPMENT STANDARDS2.2 CONSTRUCTION2.2.1 Switchgear and Auxiliary Compartments2.2.2 Compartment Details2.2.3 Buses2.2.4 Switchgear Assemblies2.2.5 Weatherproof Construction2.3 SWITCHGEAR COMPONENTS2.3.1 Air Interrupter Switches2.3.2 Power Circuit Breakers2.3.3 Molded-Case Circ
4、uit Breakers2.3.4 Instruments and Instrument Transformers2.3.5 Control-Power Circuit Overcurrent Protection2.3.6 Automatic/Manual Transfer Switch2.3.7 Control-Power Circuit Contactor2.3.8 Service and Maintenance Devices2.3.9 Protective Relays and Devices2.4 AUTOMATIC/MANUAL TRANSFER SWITCH2.5 PAINTI
5、NG2.6 SPACE HEATERS2.7 EXTERNAL VOLTAGE SOURCESECTION 33 75 00.00 40 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-PART 3 EXECUTION3.1 INSTALLATION3.2 FIELD TESTING3.3 RELAY SETTINGS AND TESTS3.4 PRELIMINARY INSPECTION3.5 ENERGIZING SWITCHGEA
6、R ASSEMBLIES- End of Section Table of Contents -SECTION 33 75 00.00 40 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-33 75 00.00 40 (November 2008)-Preparing Activity: NASA SupersedingUFGS-33 75 00.00 40 (
7、August 2008)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated October 2008*SECTION 33 75 00.00 40SWITCHGEAR AND PROTECTION DEVICES11/08*NOTE: This specification covers the requirements for switchgear and switchboards of special design or configuration. For primary-un
8、it substations, use Section 26 11 16 SECONDARY UNIT SUBSTATIONS; for motor control centers, use Section 26 24 19.00 40MOTOR CONTROL CENTERS; for power panelboards, use Section 26 24 16.00 40.00 40 PANELBOARDS. Show switchgear/switchboard elevation, dimensions, devices, instruments, and installation
9、on drawings.Edit this guide specification for project specific requirements by adding, deleting, 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 pre
10、sent.Comments and suggestions on this guide specification are welcome. Direct them to the technical proponent of the specification. A listing of technical proponents, including their organization designation and telephone number, is on the Internet.Submit recommended changes to a UFGS as a Criteria
11、Change Request (CCR).*PART 1 GENERAL1.1 REFERENCES*NOTE: This paragraph is used to list 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.SEC
12、TION 33 75 00.00 40 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Use the Reference Wizards Check Reference feature when you add a RID outside of the Sections Reference Article to automatically place the reference in the Reference Article. Al
13、so use the Reference Wizards Check Reference feature to update the issue dates.References not used in the text are automatically deleted from this section of the project specification when you choose to reconcile references in the publish print process.*The publications listed below form a part of t
14、his specification to the extent referenced. The publications are referred to within the text by the basic designation only.ASTM INTERNATIONAL (ASTM)ASTM A 1008/A 1008M (2008a) Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Allo
15、y with Improved Formability, Solution Hardened, and Bake HardenedINSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)IEEE C2 (2007; Errata 2007; INT 2008) National Electrical Safety CodeIEEE C37.121 (1989; R 2006) American National Standard for Switchgear Unit Substations RequirementsIEEE C37.20
16、.1 (2002; Addenda A 2005; Addenda B 2006; R 2007) Standard for Metal-Enclosed Low-Voltage Power Circuit-Breaker SwitchgearIEEE C57.12.90 (2006) Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating TransformersIEEE Std 4 (1995; Amendment A 2001) High Voltage Testing TechniquesNA
17、TIONAL FIRE PROTECTION ASSOCIATION (NFPA)NFPA 70 (2007; AMD 1 2008) National Electrical Code - 2008 EditionUNDERWRITERS LABORATORIES (UL)UL 467 (2007) Standard for Grounding and Bonding Equipment1.2 SYSTEM DESCRIPTION*SECTION 33 75 00.00 40 Page 4Provided by IHSNot for ResaleNo reproduction or netwo
18、rking permitted without license from IHS-,-,-NOTE: If Section 26 00 00.00 20 BASIC ELECTRICAL MATERIALS AND METHODS is not included in the project specification, insert applicable requirements therefrom, and delete the following paragraph.*Section 26 00 00.00 20 BASIC ELECTRICAL MATERIALS AND METHOD
19、S applies to work specified in this section.Submit Certificates to verify the qualifications of the Registered Professional Electrical Engineer.Submit Equipment and Performance Data for electrical equipment consisting of the following:One-line diagram of electrical equipment and system.Short-circuit
20、 calculations and a table of short-circuit fault currents at critical points in the electrical system.Spare Parts DataTime/current coordination curves on 270 by 380 millimeter 10 1/2 by 15 inch translucent tracing paper for each relay device.Table of recommended relay settings.Submit Equipment Found
21、ation Data for switchgear assemblies that includes plan dimensions of foundations and relative elevations, equipment weight and operating loads, horizontal and vertical loads, horizontal and vertical clearances for installation, and size and location of anchor bolts.1.3 SUBMITTALS*NOTE: Review Submi
22、ttal Description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES and edit the following list to reflect only the submittals required for the project. Keep submittals to the minimum required for adequate quality control.A “G” following a submittal item indicates that the submittal requires
23、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 sufficiently important or complex in context of the project.For
24、submittals requiring Government approval on Army projects, use a code of up to three characters within the submittal tags 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 D
25、istrict Office (Engineering Division or other organization in the District Office); “AO“ for Area Office; “RO“ for SECTION 33 75 00.00 40 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Resident Office; and “PO“ for Project Office. Codes follow
26、ing the “G“ typically are not used for Navy, Air Force, and 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“ d
27、esignation are for Contractor Quality Control approval.for information only. When used, a designation following the “G“ designation identifies the office that reviews the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:SD-01 Preconstruction
28、 SubmittalsSubmit Switchgear assemblies not energized until recorded test data has been approved by the Contracting Officer.SD-02 Shop DrawingsSubmit connection diagrams indicating the relations and connections of the following items by showing the general physical layout of all controls, the interc
29、onnection of one system (or portion of system) with another, and internal tubing, wiring, and other devices.Switchgear AssembliesBusesSwitchgear ComponentsAutomatic/Manual Transfer SwitchSpace HeatersSubmit fabrication drawings for the following items consisting of fabrication and assembly details t
30、o be performed in the factory.Switchgear AssembliesEnclosuresBusesSwitchgear ComponentsWeatherproof EnclosuresAutomatic/Manual Transfer SwitchSpace HeatersSubmit Installation Drawings for the switchgear assemblies in accordance with the paragraph entitled, “Installation,“ of this section.SD-03 Produ
31、ct DataSubmit Equipment and Performance Data for electrical equipment in accordance with paragraph entitled, “System Description,“ of this section.Submit Equipment Foundation Data for switchgear assemblies in accordance with paragraph entitled, “System Description,“ of this section.SECTION 33 75 00.
32、00 40 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Submit manufacturers catalog data for the following items:Switchgear AssembliesEnclosuresBusesSwitchgear ComponentsWeatherproof EnclosuresAutomatic/Manual Transfer SwitchSpace HeatersSD-06 T
33、est ReportsSubmit test reports for the following tests on switchgear assemblies in accordance with the paragraphs entitled, “Field Testing“ and “Relay Settings and Tests,“ of this section.Electrical Acceptance TestsHigh-Voltage TestsCurrent TestInsulation-Resistance TestWeatherproof TestElectrical C
34、urrent and Voltage TestsRatio and Polarity TestsSD-07 CertificatesSubmit Certificates in accordance with paragraph entitled, “System Description,“ of this section.SD-08 Manufacturers InstructionsSubmit manufacturers instructions for the Switchgear Assemblies including special provisions required to
35、install equipment components and system packages. Provide special notices that detail impedances, hazards, safety precautions, and installation instructions.SD-10 Operation and Maintenance DataSubmit Operation and maintenance manuals for the following equipment:Switchgear AssembliesTransfer Switches
36、Space Heaters1.4 FACTORY TESTINGMake factory tests on transformers and switchgear assemblies in accordance with the applicable provisions of the referenced standards.Perform tests on transformers that include resistance measurements of windings, ratio tests, polarity and phase-rotation tests, no-loa
37、d loss at rated voltage, excitation current at rated voltage, impedance voltage and load-loss at rated current, insulation power factor tests, and dielectric tests. Conduct tests in accordance with IEEE C57.12.90.Perform tests on switchgear assemblies that include mechanical operational SECTION 33 7
38、5 00.00 40 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-tests, electrical operation and control-wiring tests, relaying and metering circuit performance tests, and dielectric tests. Conduct tests in accordance with IEEE Std 4.1.5 MANUFACTURER
39、 QUALIFICATIONSProvide material and equipment under this specification that is the standard catalog product of a manufacturer regularly engaged in the manufacture of switchgear assemblies and their component parts and equipment. Provide equipment that is of the latest standard design for indoor outd
40、oor service and that has been in repetitive manufacture for at least 50 _ units.1.6 ENGINEER QUALIFICATIONSPerform electrical power systems circuit loading requirements and analyses by a professional electrical engineer registered with the National Society of Professional Engineers (NSPE). Select a
41、professional engineer who has conducted electrical coordination studies and tests for not less than five projects of comparable size and complexity. Perform work by or under the direct supervision of the registered professional electrical engineer.1.6.1 Engineering ServicesSelect an electrical engin
42、eer holding a valid state license as a Professional Engineer in the jurisdiction where the project is being constructed, and who specializes in relays and coordinating systems associated with electric-power apparatus for the manufacturer of the equipment, to coordinate all circuit-interrupting devic
43、es before the substation is energized. Duties and responsibilities of the engineer include the following work.1.6.1.1 Preliminary Survey and System Coordination StudyReview necessary short-circuit calculations to determine the minimum and maximum values of short-circuit current for faults anywhere i
44、n the system. Review values of fault current to be expected at each protective device shown on the one-line diagrams.Prepare one-line diagrams that indicate by means of single lines and simplified symbols the course and component devices of an electric circuit or system of circuits and their electri
45、cal characteristics.Inspect equipment and determine the intended function of each circuit-interrupting device and the manner in which it is connected to provide a properly coordinated electrical power system under normal load and fault conditions.Check and compare wiring diagrams furnished by the manufacturer with actual connections of the equipment to verify that each device is properly connected to perform its intended function.1.6.1.2 Time/Current Curves and SettingsPlot time/current curves on a single sheet of graph paper or electronic format for th
