SECTION 26 43 13.09 TRANSIENT-VOLTAGE SUPPRESSION FOR LOW-VOLTAGE ELECTRICAL POWER CIRCUITS PART 1 - GENERAL
1.1 A. 1.2 A. B. SCOPE This section describes the materials and installation requirements for surge protective devices (SPD) for the protection of all AC electrical circuits. RELATED DOCUMENTS Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. Other sections that may relate to the work in this section include, but are not limited to, the following: 1. [Section 26 24 16 - Panelboards 2. Section 26 24 16 - Switchboards 3. Section 26 24 19 - Motor Control Centers 4. Section 26 25 00 - Busway] SUBMITTALS A. Submit shop drawings and product information for approval and final documentation in the quantities listed according to the Conditions of the Contract. All transmittals shall be identified by customer name, customer location and customer order number. RELATED STANDARDS A. The SPD shall be manufactured and tested according to the latest applicable standards of the following agencies: 1. IEEE C62.41.1, IEEE Guide on the Surge Environment in Low-Voltage (1000 V and Less) AC Power Circuits, 2. IEEE C62.41.2, IEEE Recommended Practice on Characterization of Surges in LowVoltage (1000 V and Less) AC Power Circuits, 3. IEEE C62.45, IEEE Recommended Practice on Surge Testing for Equipment Connected to Low-Voltage (1000 V and Less) AC Power Circuits. 4. FIPS Pub 94 (1983) - Guide on Electrical Power for ADP Installation 5. National Electric Code - Article 285 6. National Fire Protection Association - NFPA-20, NFPA-70, NFPA-75, NFPA-78 7. UL 1283 - Electromagnetic Interference Filters 8. UL 1449 Second Edition Revision Effective Feb 9, 2007 - Transient Voltage Surge Suppressors QUALITY ASSURANCE A. 1.6 A. Manufacturer Qualifications: Engage a firm with at least 5 years experience in manufacturing transient voltage surge suppressors. DELIVERY, STORAGE AND HANDLING Handle and store equipment in accordance with manufacturer’s Installation and Maintenance Manuals. One copy of this document shall be provided with the equipment at the time of shipment.
1.3
1.4
1.5
PART 2 - PRODUCT
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[Project Name]
2.1 A.
MANUFACTURERS [Provide an internally mounted Transient Voltage Suppressor (TPS9I) by Siemens Energy and Automation, Inc. (Siemens) or pre-approved equal. Approved manufacturers are as follows: 1. SIEMENS 2. . ] COMPONENTS A. [Service Entrance] [Distribution] [Branch Panel] Locations 1. SPD shall be Listed and Component Recognized in accordance with UL 1449 Second Edition Revision Effective Feb 9, 2007 and UL 1283. 2. SPD shall be installed internal to electrical distribution equipment by and shipped from the electrical distribution equipment manufacturer’s factory. 3. SPD shall be tested with the Category C high waveform (10kV-1.2/50ms, 10kA-8/20ms) per IEEE C62.41.1 – 2002. 4. SPD shall be a self-contained design. Each suppression element shall be MOV based. Each phase of the surge current diversion module shall be fused with 200 kAIR fusing. 5. SPD shall be UL 1449 Second Edition Revision Effective Feb 9, 2007 tested and listed to 200kA Short Circuit Current Rating (SCCR) in compliance with NEC 285.6. 6. SPD shall provide surge current diversion paths between each phase conductor and the neutral conductor, between each phase conductor and the ground. For delta configured systems, the SPD shall have components connected between each phase conductor and between each phase conductor and ground. 7. SPD shall be connected to the buss of the distribution equipment via 20A breaker. 8. SPD shall meet or exceed the following criteria: a. Maximum surge current capability shall be [80kA] [100kA] per phase. b. UL 1449 2nd Edition Listed and Recognized Component Suppression Voltage Ratings shall not exceed the following: VOLTAGE L-N L-G L-L MCOV 208Y/120 400V 400V 700V 150V 480Y/277 900V 900V 1500V 320V 9. SPD shall be designed to withstand a maximum continuous operating voltage (MCOV) of not less than 115% of nominal RMS voltage. 10. SPD shall be equipped with onboard visual monitoring. Green indicator lights shall provide full time diagnostic monitoring of the operational status of each phase. When loss of protection occurs, green indicator light will stop illuminating. 11. SPD shall have a response time no greater than 1/2 nanosecond. 12. SPD shall have a warranty for a period of five years, incorporating unlimited replacements of suppressor parts if they are destroyed by transients during the warranty period. Warranty will be the responsibility of the electrical distribution equipment manufacturer.
2.2
PART 3 - EXECUTION
3.1 A. B. C. 3.2 A. INSTALLATION Install per manufacturer’s recommendations and contract documents. Install units plumb, level and rigid without distortion Install external units as close to the connection point as possible. Care should be taken to minimize or eliminate and 90 degree turns in the wire. ADJUSTMENTS AND CLEANING Clean exposed surfaces using manufacturer recommended materials and methods. [Project Name]
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B. 3.3 A. 3.4 A.
Touch-up damaged coatings and finishes using non-abrasive materials and methods recommended by manufacturer. Eliminate all visible evidence of repair. TESTING Perform factory and installation tests in accordance with applicable NEC, NEMA and UL requirements. WARRANTY TVSS shall have a warranty for a period of five years, incorporating unlimited replacements of suppressor parts if they are destroyed by transients during the warranty period.
END OF SECTION
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[Project Name]