1、*USACE / NAVFAC / AFCESA / NASA UFGS-26 05 13.00 40 (November 2013)-Preparing Activity: NASA SupersedingUFGS-26 05 13.00 40 (August 2010)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated October 2013*SECTION TABLE OF CONTENTSDIVISION 26 - ELECTRICALSECTION 26 05 13.0
2、0 40MEDIUM-VOLTAGE CABLES11/13PART 1 GENERAL1.1 REFERENCES1.2 DEFINITIONS1.3 SUBMITTALS1.4 PREDICTIVE TESTING AND INSPECTION TECHNOLOGY REQUIREMENTS1.5 MAINTENANCE MATERIALS SUBMITTALS1.6 QUALITY ASSURANCE1.7 DELIVERY, STORAGE AND HANDLINGPART 2 PRODUCTS2.1 SYSTEM DESCRIPTION2.1.1 Cable Voltage Rati
3、ngs2.2 EQUIPMENT2.2.1 Multiple-Conductor Shielded Cables2.2.1.1 Varnished Cambric and Lead2.2.1.2 Varnished Cambric with Interlocked Armor2.2.1.3 Natural Synthetic Rubber with Interlocked Armor2.2.1.4 Butyl Rubber with Neoprene Jacket2.2.1.5 Cross-Linked Polyethylene with PVC Jacket2.2.1.6 Ethylene
4、Propylene Rubber (EPR) with Jacketed Interlocked Armor2.2.2 Multiple-Conductor, Nonshielded Cables2.2.2.1 Natural Synthetic Rubber with Neoprene Jacket2.2.2.2 Butyl Rubber with Neoprene Jacket2.2.2.3 Cross-Linked Polyethylene with PVC Jacket2.2.2.4 Ethylene-Propylene with PVC Jacket2.2.3 Single-Cond
5、uctor Shielded Cables2.2.3.1 Butyl Rubber with Neoprene Jacket2.2.3.2 Cross-Linked Polyethylene with PVC Jacket2.2.3.3 Cross-Linked Polyethylene with Interlocked Armor2.2.3.4 Ethylene-Propylene-Rubber-Insulated with PVC Jacket2.2.4 Single-Conductor Nonshielded Cables2.2.4.1 Butyl Rubber with Neopren
6、e Jacket2.2.4.2 Cross-Linked PolyethyleneSECTION 26 05 13.00 40 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.2.4.3 Ethylene-Propylene-Rubber-Insulated with PVC Jacket2.2.5 Portable Cables2.2.6 Cable Supports And Fittings2.3 COMPONENTS2.3.1
7、 Conductors2.3.2 Cable Identification2.3.3 Nonmetallic Jacket2.3.3.1 Interlock Armored Cable2.3.3.2 Lead-Sheathed Cable2.3.3.3 Terminations2.4 TESTS, INSPECTIONS, AND VERIFICATIONS2.4.1 FlammabilityPART 3 EXECUTION3.1 INSTALLATION3.1.1 Moisture-Testing Before Pulling3.1.2 Protection During Splicing
8、Operations3.1.3 Duct Cleaning3.1.4 Pulling Cables in Ducts, Manholes and Utility Tunnels3.1.5 Splices and Terminations3.1.6 Multiple-Conductor Potheads3.1.7 Single-Conductor Potheads3.2 FIELD QUALITY CONTROL- End of Section Table of Contents -SECTION 26 05 13.00 40 Page 2Provided by IHSNot for Resal
9、eNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-26 05 13.00 40 (November 2013)-Preparing Activity: NASA SupersedingUFGS-26 05 13.00 40 (August 2010)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated October 20
10、13*SECTION 26 05 13.00 40MEDIUM-VOLTAGE CABLES11/13*NOTE: This guide specification covers the requirements for medium voltage cables, including shielded and nonshielded single-and multiple-conductor power cables, portable cables, cable splices and terminations, single- and multiple-conductor pothead
11、s, and fireproofing cables in manholes and utility tunnels.Show plan layout of power cable and power-cable terminations on drawings. Show size, type, electrical characteristics, and raceway system of power cables and type of cable termination on electrical riser diagrams.Adhere to UFC 1-300-02 Unifi
12、ed 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(s) or i
13、nsert 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).*PART 1 GENERAL*
14、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 05 13.00 40 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without
15、license from IHS-,-,-Section 26 00 00.00 20 BASIC ELECTRICAL MATERIALS AND METHODS applies to work specified in this section.1.1 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 design
16、ation 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 place the reference in the Reference Article. Also use the Reference Wizards Check Ref
17、erence 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 this specification to the extent refere
18、nced. The publications are referred to within the text by the basic designation only.ASSOCIATION OF EDISON ILLUMINATING COMPANIES (AEIC)AEIC C8 (2000) Extruded Dielectric Shielded Power Cables Rated 5 Through 46 kVAEIC CS1 (2012) Impregnated-Paper-Insulated, Metallic Sheathed Cable, Solid TypeASTM I
19、NTERNATIONAL (ASTM)ASTM B3 (2012) Standard Specification for Soft or Annealed Copper WireASTM D746 (2013) Standard Test Method for Brittleness Temperature of Plastics and Elastomers by ImpactINSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)IEEE 383 (2003; R 2008) Standard for Qualifying Class
20、 1E Electric Cables and, Field Splices for Nuclear Power Generating Stations 2004IEEE 400.2 (2013) Guide for Field Testing of Shielded Power Cable Systems Using Very Low Frequency (VLF)SECTION 26 05 13.00 40 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
21、rom IHS-,-,-NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (NASA)RCBEA GUIDE (2004) NASA Reliability Centered Building and Equipment Acceptance GuideNATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)ANSI/NEMA WC 71/ICEA S-96-659 (1999) Standard for Nonshielded Cables Rated 2001-5000 Volts for use i
22、n the Distribution of Electric EnergyNEMA WC 2 (1980; Rev 1 1989; R 1998; R 2005) Standard for Steel Armor and Associated Coverings for Impregnated Paper Insulated Cables (ICEA S-67-401 5th Edition)NEMA WC 27500 (2012) Standard for Aerospace and Industrial Electrical CableNEMA WC 70 (2009) Power Cab
23、le Rated 2000 V or Less for the Distribution of Electrical Energy-S95-658NEMA WC 74/ICEA S-93-639 (2012) 5-46 kV Shielded Power Cable for Use in the Transmission and Distribution of Electric EnergyNATIONAL FIRE PROTECTION ASSOCIATION (NFPA)NFPA 70 (2014) National Electrical CodeU.S. GENERAL SERVICES
24、 ADMINISTRATION (GSA)FED-STD-228 (2000; Notices 1-5) Cable and Wire, Insulated; Methods of Testing1.2 DEFINITIONSMedium voltage power cables includes all cables rated above 600 to 35,000 volts.1.3 SUBMITTALS*NOTE: Review Submittal Description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES
25、 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 Con
26、tractors 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 SECTION 26 05 13.00 40 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without l
27、icense from IHS-,-,-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 District Office (Engineering D
28、ivision 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 NASA projects.Choose the first bracketed item for Navy, Air Force and NASA projects, or choose t
29、he 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 information only. When used, a designation following the “G“ designation identifies the office th
30、at reviews the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:SD-03 Product DataMultiple-Conductor Shielded Cables; G; G, _Multiple-Conductor Nonshielded Cables; G; G, _Single-Conductor Shielded Cables; G; G, _Single-Conductor Nonshielded
31、Cables; G; G, _Portable Cables; G; G, _Nonmetallic Jacket; G; G, _SD-06 Test ReportsDielectric Absorption Tests; G; G, _Medium-Voltage Tests; G; G, _Radiographic Tests; G; G, _SD-07 CertificatesCertificates; G; G, _ for the following:Lead Sheath; G; G, _Flammability; G; G, _Minimum Bending Radius; G
32、; G, _Medium-Voltage Tests; G; G, _Dielectric Absorption Tests; G; G, _SECTION 26 05 13.00 40 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Cable Splicers; G; G, _SD-08 Manufacturers InstructionsMedium-Voltage Power Cables; G; G, _Pothead Ter
33、minations; G; G, _1.4 PREDICTIVE TESTING AND INSPECTION TECHNOLOGY REQUIREMENTS*NOTE: The Predictive Testing and Inspection (PT in conduit above and below grade; inside buildings; by open wire method; on insulator hooks; on racks; in wall and ceiling mounted cable trays in utility tunnels and manhol
34、es; and by direct burial.Secure cables with heavy duty cable ties in existing or new trays mounted horizontally, where cable rests on tray bottom. Install cable ties at minimum of 3000 _ millimeter 10 _-foot intervals.Secure cables with PVC coated metallic non-metallic cable clamps, SECTION 26 05 13
35、.00 40 Page 14Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-straps, hangers, or other approved supporting devices to tunnel walls, ceilings, and in new or existing cable trays mounted vertically, where tray bottom is in a vertical plane.When field
36、cuts or other damage occurs to the PVC coating, apply a liquid PVC patch to maintain the integrity of the coating. After the installation is complete, perform an inspection to ensure the absence of voids, pinholes, or cuts.Ensure that all cable tray is properly secured and supported prior to install
37、ing new armored cable. Add new permanent and/or temporary tray support devices as required to preclude cable tray failure during cable pulling or after cable is installed.Cable or conductors of a primary distribution system will be rejected when installed openly in cable trays or openly racked along
38、 interior walls; in the same raceway or conduit with ac/dc control circuits or ac power circuits operating at less than 600 volts; or in a manner allowing cable to support its own weight.3.1.1 Moisture-Testing Before PullingMoisture-test cable that has paper insulation before before pulling it into
39、underground ducts. Ensure that radii of bends, potheads, fittings, cable risers, and other conditions are suitable for the cable and conform with the recommendations of the cable manufacturer.3.1.2 Protection During Splicing OperationsProvide blower to force fresh air into manholes or confined areas
40、 where free movement or circulation of air is obstructed. Have waterproof protective coverings available on the work site to provide protection against moisture while a splice is being made. Use pumps to keep manholes dry during splicing operations. Never make a splice or termination with the interi
41、or of a cable exposed to moisture. Moisture-test conductor insulation paper before the splice is made. Use a manhole ring at least 150 _ millimeter 6 _-inches above ground around the manhole entrance to keep surface water from entering the manhole. Plug unused ducts and stop water seepage through du
42、cts in use before the splice is started.3.1.3 Duct Cleaning*NOTE: Delete the heading and the following paragraph if the installation of power cables is in ducts and manholes provided under this project. Provisions for duct cleaning are adequately covered in Section 33 71 02.00 20 UNDERGROUND ELECTRI
43、CAL DISTRIBUTION.*Thoroughly clean ducts before installation of power cables. Pull a standard flexible mandrel through each duct to loosen particles of earth, sand, or foreign material in the line. Use a mandrel that is not less than 300 _ millimeter 12 _-inches long with a diameter 13 millimeter 1/
44、2-inch less than the inside diameter of the duct. Then pull a brush with stiff bristles through each duct to remove the loosened particles. Use a brush with a diameter that is the same as or slightly SECTION 26 05 13.00 40 Page 15Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-larger than the diameter of the duct.3.1.
