1、*USACE / NAVFAC / AFCESA / NASA UFGS-26 24 19.00 40 (August 2010)-Preparing Activity: NASA SupersedingUFGS-26 24 19.00 40 (November 2008)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2010*SECTION TABLE OF CONTENTSDIVISION 26 - ELECTRICALSECTION 26 24 19.00 4
2、0MOTOR CONTROL CENTERS08/10PART 1 GENERAL1.1 REFERENCES1.2 SYSTEM DESCRIPTION1.2.1 Rules1.2.2 Coordination1.2.3 Standard Products1.2.4 Nameplates1.3 SUBMITTALS1.4 PREDICTIVE TESTING AND INSPECTION TECHNOLOGY REQUIREMENTS1.5 DELIVERY, STORAGE, AND HANDLING1.6 MAINTENANCE1.6.1 Accessories and Tools1.6
3、.2 Spare PartsPART 2 PRODUCTS2.1 CONNECTIONS2.2 MOLDED CASE CIRCUIT BREAKERS2.2.1 Trip Units2.2.2 480-Volt AC Circuits2.2.3 120/240-Volt AC Circuits2.2.4 125-Volt DC Circuits2.3 WIRING2.4 TERMINAL BLOCKS2.4.1 Types of Terminal Blocks2.4.1.1 Short-Circuiting Type2.4.1.2 Load Type2.4.2 Marking Strips2
4、.5 SPACE HEATERS2.6 MOTOR CONTROL CENTERS2.6.1 Enclosures2.6.1.1 Unit Compartments2.6.1.2 Motor Control Center Doors and Covers2.6.1.3 Horizontal Wireways2.6.1.4 Vertical WirewaysSECTION 26 24 19.00 40 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IH
5、S-,-,-2.6.1.5 Sills2.6.1.6 NEMA 3R Enclosures2.6.1.7 Shutters2.6.1.8 Thermostatically Controlled Strip Heaters2.6.2 Buses2.6.2.1 Horizontal Bus2.6.2.2 Vertical Bus2.6.2.3 Ground Bus2.6.2.4 Neutral Bus2.6.3 Combination Starters2.6.3.1 Magnetic Contactors2.6.3.2 Reduced Voltage Starters2.6.3.3 Auxilia
6、ry Contacts2.6.3.4 Overload Relays2.6.3.5 Individual Control Transformers2.6.3.6 Voltage Fault Protection2.6.3.7 Control Circuit Disconnects2.6.4 Molded Case Circuit Breakers in Unit Compartments2.6.5 Panelboards for Motor Control Centers2.6.6 Distribution Transformers2.6.7 Ground Detector Indicator
7、2.6.8 Wiring for Motor Control Centers2.6.8.1 Contractors Wiring2.6.8.2 External Connections2.6.8.3 Terminal Blocks2.6.9 Control Transformers2.6.10 Accessories and Control Devices2.6.10.1 Control Stations2.6.10.2 LED Indicating Lights2.6.10.3 Control Relays2.6.10.4 Timing Relays2.6.10.5 Alternators2
8、.6.10.6 Elapsed-Time Meters2.6.11 Feeder Tap Units2.6.12 Metering Section2.6.12.1 Instrument Transformers2.6.12.2 Ammeters2.6.12.3 Voltmeters2.6.12.4 Watthour Meters2.6.12.5 Switches2.6.13 Power-Factor-Correction Capacitors2.6.14 Space for Mounting PLCs2.7 PAINTING2.8 FACTORY TESTS2.8.1 Motor Contro
9、l Centers Tests2.8.1.1 Dielectric Tests2.8.1.2 Operational Tests2.8.1.3 Short Circuit TestsPART 3 EXECUTION3.1 INSTALLATION3.2 FIELD TESTING- End of Section Table of Contents -SECTION 26 24 19.00 40 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,
10、-,-*USACE / NAVFAC / AFCESA / NASA UFGS-26 24 19.00 40 (August 2010)-Preparing Activity: NASA SupersedingUFGS-26 24 19.00 40 (November 2008)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2010*SECTION 26 24 19.00 40MOTOR CONTROL CENTERS08/10*NOTE: This guide s
11、pecification covers the requirements for motor control centers and switchboards by formal advertising, using a SUPPLY-type contract.Edit this guide specification for project specific requirements by adding, deleting, or revising text. For bracketed items, choose applicable items(s) or insert appropr
12、iate 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 the technical proponent of the specification. A listing of technical proponents, inc
13、luding their organization designation and telephone number, is on the Internet.Recommended changes to a UFGS should be submitted as a Criteria Change Request (CCR).*PART 1 GENERAL*NOTE: This section includes the technical requirements for the types of equipment provided at navigation locks and dams,
14、 flood control pumping plants, and hydroelectric power plants to supply auxiliary power to the power plant, switchyard, dam and other project facilities.Applicable portions of this document will be incorporated into electrical specifications when equipment is purchased using a CONSTRUCTION-type cont
15、ract. Modifications needed to do this will include: Modifying submittal requirements to eliminate submittals tied to notice to proceed SECTION 26 24 19.00 40 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-dates, adding a PART 3 EXECUTION secti
16、on covering installation of the equipment, adding installation material, such as conduit and wire, and quality information to PART 2 PRODUCTS. UFGS Section 26 20 00 INTERIOR DISTRIBUTION SYSTEM may be used as a basis for the EXECUTION section.Suitable drawings showing the general arrangement and sin
17、gle-line diagram of each motor control center, switchboard, and panelboard should be included with the procurement specifications. The drawings should show the locations of conduit and cable entrances, details of nameplates, and tabulations showing the NEMA size of contactors and motor controllers,
18、trip ratings of circuit breakers, solid state trips where required, alarm and bell contacts and shunt trips where required, sizes of feeder and branch circuit conductors, and ratings of motors and other loads.This specification covers NEMA Class II motor control centers where interlocking and remote
19、 control are required as is engineering effort on the part of the manufacturer. Where cost savings may be realized by grouping motor controls together, but where motor operations are not interlocked, locally or remotely, and no manufacturers engineering effort required, NEMA Class I should be used.
20、This specification may be modified for NEMA Class I motor control centers by deleting the following paragraphs from PART 2:WIRING (except when applicable to switchboards)TERMINAL BLOCKS (except when applicable to switchboards)MOTOR CONTROL CENTERS - change references to Class II, type B and C.Horizo
21、ntal Wireways - the option for master terminal block compartment should generally not be included.Wiring for Motor Control CentersAlternatorsOperational Tests*1.1 REFERENCES*NOTE: This paragraph is used to list the publications cited in the text of the guide specification. The publications are refer
22、red to in the text by basic designation only and listed in this paragraph by organization, designation, date, and title.SECTION 26 24 19.00 40 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Use the Reference Wizards Check Reference feature whe
23、n 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 Reference feature to update the issue dates.References not used in the text will automatically be deleted from this section of the project spe
24、cification when you choose to reconcile references in the publish print process. *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 designation only.ASME INTERNATIONAL (ASME)ASME B1.1 (2003; R 2008)
25、 Unified Inch Screw Threads (UN and UNR Thread Form)ASME B1.20.1 (1983; R 2006) Pipe Threads, General Purpose (Inch)ASTM INTERNATIONAL (ASTM)ASTM B 187/B 187M (2006) Standard Specification for Copper, Bus Bar, Rod and Shapes and General Purpose Rod, Bar and ShapesASTM B 317/B 317M (2007) Standard Sp
26、ecification for Aluminum-Alloy Extruded Bar, Rod, Tube, Pipe, and Structural Profiles for Electrical Purposes (Bus Conductor)INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)IEEE C57.12.01 (2005) General Requirements for Dry-Type Distribution and Power Transformers Including Those with Solid-
27、Cast and/or Resin-Encapsulated WindingsIEEE C57.13 (2008) Standard Requirements for Instrument TransformersNATIONAL AERONAUTICS AND SPACE ADMINISTRATION (NASA)RCBEA GUIDE (2004) NASA Reliability Centered Building and Equipment Acceptance GuideNATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)ANSI
28、C12.1 (2008) Electric Meters Code for Electricity MeteringANSI C12.4 (1984; R 2002) Registers - Mechanical DemandSECTION 26 24 19.00 40 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NEMA AB 1 (2002) Molded-Case Circuit Breakers, Molded Case S
29、witches, and Circuit-Breaker EnclosuresNEMA ICS 1 (2000; R 2005; R 2008) Standard for Industrial Control and Systems: General RequirementsNEMA ICS 2 (2000; Add/Errata 2000; Errata 2006; R 2005; Errata 2008) Standard for Controllers, Contactors, and Overload Relays Rated 600 VNEMA ICS 4 (2005) Termin
30、al BlocksNEMA ICS 6 (1993; R 2001; R 2006) EnclosuresNEMA ST 1 (1988; R 1994; R 1997) Specialty Transformers (Except General Purpose Type)NEMA/ANSI C12.10 (2004) Physical Aspects of Watthour Meters - Safety StandardsNEMA/ANSI C12.11 (2007) Instrument Transformers for Revenue Metering, 10 kV BIL thro
31、ugh 350 kV BIL (0.6 kV NSV through 69 kV NSV)NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)NFPA 70 (2008; TIA 08-1) National Electrical CodeUNDERWRITERS LABORATORIES (UL)UL 1063 (2006) Machine-Tool Wires and CablesUL 44 (2005; R 2005) Thermoset-Insulated Wires and CablesUL 489 (2009) Molded-Case Circui
32、t Breakers, Molded-Case Switches, and Circuit-Breaker EnclosuresUL 845 (2005; R 2006) Motor Control Centers1.2 SYSTEM DESCRIPTION*NOTE: Drafts of specifications submitted to higher authority for review and approval shall consist of printed copies of this guide specification combined with pertinent s
33、ections of procurement documents as call for on Standard Form 33, both revised as required for the particular procurement. Instructions for the preparation and submission of specifications for approval are included in ER 1110-2-1200.The following is a bid item list to be included in SECTION 26 24 19
34、.00 40 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-section B of Standard Form 33 of a supply contract. This example should be modified to fit the individual contract requirements. Dissimilar motor control centers, switchboards and panelboar
35、ds should be entered as separate bid items.SECTION BSUPPLIES/SERVICES AND PRICESITEM DESCRIPTION EST U/M UNIT AMOUNTQTY PRICE_0001 480-VOLT, 3-PHASE, UNIT 1 LS EACH $_MOTOR CONTROL CENTER(NO. _)000X 480-VOLT, 3-PHASE, MOTOR 1 LS EACH $_CONTROL CENTER(NO. _)000X 480-VOLT, 3 PHASE, POWER 1 LS EACH $_D
36、ISTRIBUTION SWITCHBOARD(NO. _)000X 480-VOLT, 3-PHASE, POWER 1 LS EACH $_DISTRIBUTION PANELBOARD(NO. _)000X ACCESSORIES AND SPARE 1 LOT XXXX $_PARTS000X CONTRACT DATA (PART 1, XXX XXX NSP XXXXXXXXXXXTHE SCHEDULE) (SEE DD FORM 1423, EXHIBIT B)*These specifications include the design, fabrication, asse
37、mbly, wiring, testing, delivery, installation and testing of the items of equipment and accessories and spare parts listed in the Schedule and shown on the drawings.Within 30 _ calendar days after date of award date of receipt by him of notice of award, submit for the approval of the Contracting Off
38、icer six (6) _ copies of electrical equipment drawings, including all switchboards, motor control units, and protective devices. Provide a single-line diagram, equipment list and nameplate schedule.*NOTE: The intent of this submittal is to require NEMA Class II drawing packages. When it is desirable
39、 for the Governments wire numbers to be included on the drawings or custom drawing sizes and title blocks are required, NEMA Class IIS shall be specified.Should this specification be used in procurement of NEMA Class I equipment, the drawing packages are less involved and the second and fourth sente
40、nces SECTION 26 24 19.00 40 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-shall be deleted from this paragraph.*Within 30 _calendar days after date of award date of receipt by him of notice of award, submit for the approval of the Contracting
41、 Officer six (6) _ copies of electrical equipment drawings. Include within the NEMA Class IIS motor control center drawings a connection diagram with wire designations and schematic diagrams to illustrate operation of associated motor unit controls. Submit an individual wiring diagram for each motor
42、 control center. Wiring diagrams shall be in a form showing physical arrangement of the control center with interconnecting wiring shown by lines or by terminal designations (wireless). Provide a single-line diagram, equipment list and nameplate schedule for each motor control center.1.2.1 Rules*NOT
43、E: Many manufacturers represent IEC ratings as equivalent to NEMA ratings or UL labeling. The two are different standards philosophies and are not interchangeable. IEC ratings are not acceptable under this specification. For further information, see NEMA ICS 2.4, “NEMA AND IEC DEVICES FOR MOTOR SERV
44、ICE - A GUIDE FOR UNDERSTANDING THE DIFFERENCE.“*The equipment shall conform to the requirements of NFPA 70 unless more stringent requirements are indicated herein or shown. NEMA rated and UL listed equipment has been specified when available. Equipment must meet NEMA and UL construction and rating requir
