1、*USACE / NAVFAC / AFCESA / NASA UFGS-26 12 19.10 (February 2012)-Preparing Activity: NAVFAC SupersedingUFGS-26 12 19.10 (August 2011)UFGS-26 12 19.10 (November 2009)UFGS-26 12 19.10 (April 2006)UFGS-16272 (January 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL date
2、d January 2012*SECTION TABLE OF CONTENTSDIVISION 26 - ELECTRICALSECTION 26 12 19.10THREE-PHASE PAD-MOUNTED TRANSFORMERS02/12PART 1 GENERAL1.1 REFERENCES1.2 RELATED REQUIREMENTS1.3 DEFINITIONS1.4 SUBMITTALS1.4.1 Government Submittal Review1.4.2 Reduced Submittal Requirements1.5 QUALITY ASSURANCE1.5.1
3、 Pad-Mounted Transformer Drawings1.5.2 Regulatory Requirements1.5.3 Standard Products1.5.3.1 Alternative Qualifications1.5.3.2 Material and Equipment Manufacturing Date1.6 MAINTENANCE1.6.1 Additions to Operation and Maintenance Data1.7 WARRANTYPART 2 PRODUCTS2.1 PRODUCT COORDINATION2.2 THREE-PHASE P
4、AD-MOUNTED TRANSFORMERS2.2.1 Compartments2.2.1.1 High Voltage, Dead-Front2.2.1.2 High Voltage, Live-Front2.2.1.3 Low Voltage2.2.2 Transformer2.2.2.1 Specified Transformer Efficiencies2.2.3 Insulating Liquid2.2.3.1 Liquid-Filled Transformer Nameplates2.2.4 Corrosion Protection2.3 WARNING SIGNS2.4 Arc
5、 Flash Warning LabelSECTION 26 12 19.10 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.5 GROUNDING AND BONDING2.6 PADLOCKS2.7 CAST-IN-PLACE CONCRETE2.8 SOURCE QUALITY CONTROL2.8.1 Transformer Test Schedule2.8.2 Design Tests2.8.3 Routine and
6、Other TestsPART 3 EXECUTION3.1 INSTALLATION3.2 GROUNDING3.2.1 Grounding Electrodes3.2.2 Pad-Mounted Transformer Grounding3.2.3 Connections3.2.4 Grounding and Bonding Equipment3.3 INSTALLATION OF EQUIPMENT AND ASSEMBLIES3.3.1 Meters and Current Transformers3.4 FIELD APPLIED PAINTING3.5 WARNING SIGN M
7、OUNTING3.6 FOUNDATION FOR EQUIPMENT AND ASSEMBLIES3.6.1 Cast-In-Place Concrete3.6.2 Sealing3.7 FIELD QUALITY CONTROL3.7.1 Performance of Acceptance Checks and Tests3.7.1.1 Pad-Mounted Transformers3.7.1.2 Current Transformers3.7.1.3 Watthour Meter3.7.1.4 Grounding System3.7.1.5 Surge Arresters, Mediu
8、m- and High-Voltage3.7.2 Follow-Up Verification- End of Section Table of Contents -SECTION 26 12 19.10 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-26 12 19.10 (February 2012)-Preparing Activity: NAVFAC S
9、upersedingUFGS-26 12 19.10 (August 2011)UFGS-26 12 19.10 (November 2009)UFGS-26 12 19.10 (April 2006)UFGS-16272 (January 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated January 2012*SECTION 26 12 19.10THREE-PHASE PAD-MOUNTED TRANSFORMERS02/12*NOTE: This guide
10、specification covers three-phase pad-mounted transformers of the dead-front and live-front types for exterior applications.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
11、 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 present.Comments, s
12、uggestions and recommended changes for this guide specification are welcome and should be submitted as a Criteria Change Request (CCR).*NOTE: Use pad-mounted transformers (properly protected with bayonet type, oil-immersed, expulsion fuses in series with oil-immersed, partial-range, current-limiting
13、 fuses) for kVA ratings up to and including 1500 kVA on 5 kV systems and for kVA ratings up to and including 2500 kVA on 15, 25, and 35 kV systems.For voltages above 35 kV and in ratings above those previously indicated, this specification requires significant modifications and additional specificat
14、ion sections may need to be added on the project.The use of pad-mounted transformers with secondary SECTION 26 12 19.10 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-currents exceeding 3000 amperes is discouraged due to the size and quantity
15、of secondary conductors. Therefore, transformers above 1000 kVA serving 208Y/120 volt loads and transformers above 2500 kVA serving 480Y/277 volt loads should be in a secondary unit substation configuration.Available fault current level and arc-flash energy become extremely hazardous at the larger k
16、VA size transformers. Designer should consider these parameters and evaluate multiple service points.*NOTE: This specification incorporates a “reduced shop drawing submittal process“ for listed manufacturers who previously satisfied reduced shop drawing submittal process requirements. This specifica
17、tion also includes unique routine and other test requirements, transformer loss certificate, transformer test schedule, and field quality control acceptance tests and reports. The preparing activity, NAVFAC LANT, has significant experience and technical expertise in these areas. If Reach-back suppor
18、t is desired, the technical representative (electrical engineer) editing this document for a specific project must contact the NAVFAC LANT Capital Improvements Electrical Engineering (Code CIEE) Office for consultation during the design stage of the project.*NOTE: Use the following related guide spe
19、cifications for power distribution equipment:-Section 26 08 00 APPARATUS INSPECTION AND TESTING-Section 26 11 13.00 20 PRIMARY UNIT SUBSTATIONS-Section 26 11 16 SECONDARY UNIT SUBSTATION-Section 26 12 19.20 SINGLE-PHASE PAD-MOUNTED TRANSFORMERS-Section 26 13 00.00 20 SF6/HIGH-FIREPOINT FLUID INSULAT
20、ED PAD-MOUNTED SWITCHGEAR-Section 26 23 00 SWITCHBOARDS AND SWITCHGEAR-Section 26 27 13.10 30 ELECTRIC METERS-Section 26 27 14.00 20 ELECTRICITY METERING-Section 33 71 01 OVERHEAD TRANSMISSION AND DISTRIBUTIONDo not use the following related guide specifications except for Army Civil Works projects.
21、 They have not been unified.-Section 26 11 14.00 10 MAIN ELECTRIC SUPPLY STATION AND SUBSTATION-Section 26 28 00.00 10 MOTOR CONTROL CENTERS, SWITCHBOARDS AND PANELBOARDS-Section 26 22 00.00 10 480-VOLT STATION SERVICE SWITCHGEAR AND TRANSFORMERSSECTION 26 12 19.10 Page 4Provided by IHSNot for Resal
22、eNo reproduction or networking permitted without license from IHS-,-,-*NOTE: Coordination is required between this section and metering equipment specification sections. See section 26 27 14.00 20 for transformer and metering details, which are available in metric (SI) and U.S. Customary (IP) system
23、 dimension. Use these files to develop project specific drawings, including: File Name DescriptionPADMDE1 Three Phase, Ungrounded or Single Grounded Primary System - with Surge ArrestersPADMDE2 Three Phase, Ungrounded or Single Grounded Primary System - without Surge ArrestersPADMDE3 Three Phase, Mu
24、lti-Grounded Primary System (Delta-Wye) - with Surge ArrestersPADMDE4 Three Phase, Multi-Grounded Primary System (Delta-Wye) - without Surge ArrestersPADMDE5 Three Phase, Multi-Grounded Primary System (Wye-Wye) - with Surge ArrestersPADMDE6 Three Phase, Multi-Grounded Primary System (Wye-Wye) - with
25、out Surge ArrestersARCFLASH Arc Flash Warning LabelTO DOWNLOAD UFGS GRAPHICSGo to http:/www.wbdg.org/ccb/NAVGRAPH/graphtoc.pdf.Select the appropriate Electrical .ZIP file(s) and extract the desired details.Do not include list of details, or details themselves, in project specifications. Insert the a
26、ppropriate details on drawings and modify optional and blank items. If special features are required, do not modify details, but indicate these changes as notes below the detail.*NOTE: The following information shall be shown on the project drawings:1. Single-line diagram showing pad-mounted SECTION
27、 26 12 19.10 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-transformer connectors, inserts, surge arresters, switches, fuses, current transformers with ratings, and meters as applicable.2. Grounding plan.3. Type and number of cables, and size
28、 of conductors for each power circuit.4. Transformer primary and secondary voltages. (Use IEEE C57.12.00, Table 12, “Designation of voltage ratings of three-phase windings (schematic representation)“.) State the primary voltage (nominal) actually in service and not the voltage class.5. Special condi
29、tions, such as altitude, temperature and humidity; exposure to fumes, vapors, dust, and gases; and seismic requirements.*PART 1 GENERAL1.1 REFERENCESThe publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic des
30、ignation only.AMERICAN CONCRETE INSTITUTE INTERNATIONAL (ACI)ACI 318M (2011) Building Code Requirements for Structural Concrete R 2007) Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using Disk ElectrodesSECTION 26 12 19.10 Page 6Provided by IHSNot for ResaleNo reproduct
31、ion or networking permitted without license from IHS-,-,-ASTM D92 (2005a; R 2010) Standard Test Method for Flash and Fire Points by Cleveland Open Cup TesterASTM D97 (2011) Pour Point of Petroleum ProductsFM GLOBAL (FM)FM APP GUIDE (updated on-line) Approval Guide http:/ OF ELECTRICAL AND ELECTRONIC
32、S ENGINEERS (IEEE)IEEE 100 (2000; Archived) The Authoritative Dictionary of IEEE Standards TermsIEEE 386 (2006; INT 1 2011) Standard for Separable Insulated Connector Systems for Power Distribution Systems Above 600VIEEE C2 (2012) National Electrical Safety CodeIEEE C37.47 (2000) Standard for High V
33、oltage Current-Limiting Type Distribution Class Fuses and Fuse Disconnecting SwitchesIEEE C57.12.00 (2010) Standard General Requirements for Liquid-Immersed Distribution, Power, and Regulating TransformersIEEE C57.12.28 (2005; INT 3 2011) Standard for Pad-Mounted Equipment - Enclosure IntegrityIEEE
34、C57.12.29 (2005) Standard for Pad-Mounted Equipment - Enclosure Integrity for Coastal EnvironmentsIEEE C57.12.34 (2009) Standard for Requirements for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase Distribution Transformers, 5 MVA and Smaller; High Voltage, 34.5 kV Nominal System Voltage a
35、nd Below; Low Voltage, 15 kV Nominal System Voltage and BelowIEEE C57.12.90 (2010) Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating TransformersIEEE C57.13 (2008) Standard Requirements for Instrument TransformersIEEE C57.98 (1993; Errata 1998; R 1999) Guide for Transformer
36、Impulse TestsIEEE C62.11 (2005; Amd 1 2008) Standard for Metal-Oxide Surge Arresters for Alternating Current Power Circuits (1kV)SECTION 26 12 19.10 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-INTERNATIONAL ELECTRICAL TESTING ASSOCIATION (N
37、ETA)NETA ATS (2009) Standard for Acceptance Testing Specifications for Electrical Power Equipment and SystemsNATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)ANSI C12.1 (2008) Electric Meters Code for Electricity MeteringANSI C12.7 (2005) Requirements for Watthour Meter SocketsNEMA LI 1 (1998) In
38、dustrial Laminating Thermosetting ProductsNEMA/ANSI C12.10 (2011) Physical Aspects of Watthour Meters - Safety StandardsNATIONAL FIRE PROTECTION ASSOCIATION (NFPA)NFPA 70 (2011; TIA 11-1; Errata 2011; TIA 11-2; TIA 11-3; TIA 11-4) National Electrical CodeORGANISATION FOR ECONOMIC CO-OPERATION AND DE
39、VELOPMENT (OECD)OECD Test 203 (1992) Fish Acute Toxicity TestU.S. ENVIRONMENTAL PROTECTION AGENCY (EPA)EPA 712-C-98-075 (1996) Fate, Transport and Transformation Test Guidelines - OPPTS 835.3100- “Aerobic Aquatic Biodegradation“EPA 821-R-02-012 (2002) Methods for Measuring the Acute Toxicity of Effl
40、uents and Receiving Waters to Freshwater and Marine OrganismsU.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)10 CFR 431 Energy Efficiency Program for Certain Commercial and Industrial EquipmentUNDERWRITERS LABORATORIES (UL)UL 467 (2007) Grounding and Bonding Equipment1.2 RELATED REQUIREMENTS
41、*NOTE: Include Section 26 08 00 APPARATUS INSPECTION AND TESTING on all projects involving medium voltage and specialized power distribution equipment.*Section 26 08 00 APPARATUS INSPECTION AND TESTING applies to this section, with the additions and modifications specified herein.SECTION 26 12 19.10
42、 Page 8Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.3 DEFINITIONSUnless otherwise specified or indicated, electrical and electronics terms used in these specifications, and on the drawings, shall be as defined in IEEE 100.1.4 SUBMITTALS*NOTE: Re
43、view 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.The Guide Specification technical editors have designated those items that require Government approval, due to their complexity or criticality, with a “G“. Generally, other submittal items can be reviewed by the Contractors Quality Control System. Only add a “G” to an item, if the submittal is sufficiently important or complex in context of the project.For submittals requiring Government approval on Army
