1、*USACE / NAVFAC / AFCEC / NASA UFGS-26 18 23.00 40 (August 2013)-Preparing Activity: NASA SupersedingUFGS-26 18 23.00 40 (August 2010)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2013*SECTION TABLE OF CONTENTSDIVISION 26 - ELECTRICALSECTION 26 18 23.00 40ME
2、DIUM-VOLTAGE SURGE ARRESTERS08/13PART 1 GENERAL1.1 REFERENCES1.2 SUBMITTALS1.3 PREDICTIVE TESTING AND INSPECTION TECHNOLOGY REQUIREMENTS1.4 MAINTENANCE MATERIALS SUBMITTALS1.4.1 Installation Instructions, Surge Arresters1.4.2 O INT 1 2011) Standard for Separable Insulated Connector Systems for Power
3、 Distribution Systems Above 600VIEEE C62.11 (2012) Standard for Metal-Oxide Surge Arresters for Alternating Current Power Circuits (1kV)NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (NASA)RCBEA GUIDE (2004) NASA Reliability Centered Building and Equipment Acceptance GuideNATIONAL ELECTRICAL MANUFACT
4、URERS ASSOCIATION (NEMA)NEMA LA 1 (2009) Standard for Surge ArrestersNATIONAL FIRE PROTECTION ASSOCIATION (NFPA)NFPA 70 (2011; Errata 2 2012) National Electrical Code1.2 SUBMITTALS*SECTION 26 18 23.00 40 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
5、IHS-,-,-NOTE: Review 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 thei
6、r 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 project
7、s, 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 Division or other organizati
8、on 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 the second bracketed item fo
9、r 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 that reviews the submittal fo
10、r the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:SD-02 Shop DrawingsFabrication Drawings; G; G, _Installation Drawings; G; G, _SD-03 Product DataEquipment and Performance Data; G; G, _Mounting Brackets; G; G, _SD-08 Manufacturers InstructionsInstallatio
11、n Instructions; G; G, _SD-10 Operation and Maintenance DataOperation and Maintenance Manuals; G; G, _SECTION 26 18 23.00 40 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.3 PREDICTIVE TESTING AND INSPECTION TECHNOLOGY REQUIREMENTS*NOTE: The
12、Predictive Testing and Inspection (PT&I) tests prescribed in Section 01 86 26.07 40 RELIABILITY CENTERED ACCEPTANCE FOR ELECTRICAL SYSTEMS are MANDATORY for all NASA _ assets and systems identified as Critical, Configured, or Mission Essential. If the system is non-critical, non-configured, and not
13、mission essential, use sound engineering discretion to assess the value of adding these additional test and acceptance requirements. See Section 01 86 26.07 40 RELIABILITY CENTERED ACCEPTANCE FOR ELECTRICAL SYSTEMS for additional information regarding cost feasibility of PT&I.*This section contains
14、systems and/or equipment components regulated by NASAs Reliability Centered Building and Equipment Acceptance Program. This program requires the use of Predictive Testing and Inspection (PT&I) technologies in conformance with RCBEA GUIDE to ensure building equipment and systems have been installed p
15、roperly and contain no identifiable defects that shorten the design life of a system and/or its components. Satisfactory completion of all acceptance requirements is required to obtain Government approval and acceptance of the Contractors work.Perform PT&I tests and provide submittals as specified i
16、n Section 01 86 26.07 40 RELIABILITY CENTERED ACCEPTANCE FOR ELECTRICAL SYSTEMS.1.4 MAINTENANCE MATERIALS SUBMITTALS1.4.1 Installation Instructions, Surge ArrestersSubmit manufacturers instructions for surge arresters including special provisions required to install equipment components and system p
17、ackages. Provide special notices that detail impedances, hazards and safety precautions.1.4.2 O & M Manuals, Surge ArrestersProvide operation and maintenance manuals for surge arresters specified.PART 2 PRODUCTSSubmit surge arrester equipment and performance data, including life, test, system functi
18、onal flows, safety features, and mechanical automated details.Submit fabrication drawings that show assembly and fabrication details performed in the factory.2.1 EQUIPMENTProvide design, fabrication, testing, and performance of arresters that complies with IEEE C62.11, NEMA LA 1.*NOTE: Provide a vol
19、tage rating of arresters in accordance with manufacturers recommendations to meet the maximum continuous line-to-ground operating SECTION 26 18 23.00 40 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-voltage (MCOV). Consider system neutral, wh
20、ether grounded, ungrounded, or effectively grounded for all possible conditions of operations, including Phase-to-ground faults, when selecting arrestors.*Provide arresters that utilize metal oxide varistor and gapped arrester technologies.Provide arresters that are contained within a polymer housin
21、g. Ensure arrester is designed as non-fragmenting. For arresters utilizing a hanger frame type mounting bracket, provide a frame that is a non-corrosive track resistant glass filled polyester or other suitable non-corrosive/non-conductive material that provides high mechanical strength. Provide arre
22、ster mounting hardware designed for installation in severe salt-spray atmosphere and is a zinc-coated or corrosion-resistant metal in accordance with ASTM A123/A123M ASTM A153/A153M.Provide an arrester housing molded of EPDM insulating rubber in an insulated, fully shielded, submersible, deadfront d
23、evice that conforms to IEEE 386.2.1.1 Surge Arresters2.1.1.1 DistributionProvide combination spark gap and metal oxide varistor type distribution arresters. Provide corrosion resistant mounting hardware.a. Distribution - Riser-Pole ClassProvide combination spark gap and metal oxide varistor type ris
24、er-pole class. Provide corrosion resistant mounting hardware.b. Distribution - UndergroundProvide arresters that are combination spark gap and metal oxide varistor type technology in a premolded rubber elbow.2.1.1.2 IntermediateProvide single-phase, single-pole, self-supporting type arresters for pe
25、destal, platform, or bracket mounting.2.1.1.3 StationProvide single-phase, single-pole, self-supporting type arresters for pedestal, platform, or bracket mounting.2.1.2 Surge Protection For Rotating AC MachinesProvide arresters for rotating alternating current equipment that are the type and rating
26、as recommended by the equipment manufacturer.2.1.3 Mounting BracketsProvide arresters equipped with suitable mounting brackets for the applicable method of mounting.SECTION 26 18 23.00 40 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-PART 3 E
27、XECUTION3.1 INSTALLATIONSubmit installation drawings for surge arrestors.Install and connect arresters in accordance with the manufacturers installation instructions.Make ground connection to a driven ground rod, counterpoise, or station grounding system and meet the intent of the National Electrica
28、l Code, NFPA 70.Connect lightning arresters as close as practicable to the apparatus being protected. When connecting arresters to overhead conductors, use a hot line clamp. Provide a hot line clamp that is compatible with the conductor material being used, i.e. aluminum or copper.3.1.1 Arresters3.1
29、.1.1 Distribution TypeInstall distribution class arresters on all overhead lines, pad mounted transformers and where applicable installed on distribution load break switches, sectionalizers and fault interrupters. Install riser-pole class arrestors on all riser poles.3.1.1.2 Intermediate Type*NOTE:
30、Where additional protection is necessary, install intermediate class arresters. Make the utilization of intermediate class arresters take into consideration the increased size, weight and mounting constraints. Typical areas of consideration are unit substations, primary switches and switching statio
31、ns.Install intermediate type arrestors on grounded support brackets/structures suitable to adequately support the weight of the arrestor.*Install intermediate type arrestors on grounded support brackets/structures suitable to adequately support the weight of the arrestor.3.1.1.3 Station Type*NOTE: W
32、here maximum protection is required utilize the station class arrester. Use these arresters where switching surge durability is required. A typical area of utilization is utility substations where the medium voltage distribution system interfaces to the high voltage commercial power provider. Make u
33、tilization of station class arresters take into consideration the increased size, weight and mounting constraints.*SECTION 26 18 23.00 40 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Install station type arrestors on grounded structures suit
34、able to adequately support the weight of the arrestor.3.2 FIELD QUALITY CONTROL*NOTE: If the specified system is identified as critical, configured, or mission essential, use Section 01 86 26.07 40 RELIABILITY CENTERED ACCEPTANCE FOR ELECTRICAL SYSTEMS to establish predictive and acceptance testing
35、criteria, above and beyond that listed below.*Perform PT&I tests and provide submittals as specified in Section 01 86 26.07 40 RELIABILITY CENTERED ACCEPTANCE FOR ELECTRICAL SYSTEMS.- End of Section -SECTION 26 18 23.00 40 Page 8Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
