VA 26 43 13-2009 TRANSIENT-VOLTAGE SURGE SUPPRESSION.pdf

1、4-09 26 43 13-1 SECTION 26 43 13 TRANSIENT-VOLTAGE SURGE SUPPRESSION SPEC WRITER NOTE: Delete between /-/ if not applicable to project. Also delete any other item or paragraph not applicable to the section and renumber the paragraphs. PART 1 - GENERAL 1.1 DESCRIPTION Section includes transient volta

2、ge surge suppression equipment for low-voltage power distribution and control equipment. 1.2 RELATED WORK A. Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS: General requirements that are common to more than one section of Division 26. B. Section 26 23 00, LOW-VOLTAGE SWITCHGEAR: For fac

3、tory-installed TVSS. C. Section 26 24 11, DISTRIBUTION SWITCHBOARDS: For factory-installed TVSS. D. Section 26 24 16, PANELBOARDS: For factory-installed TVSS. E. Section 26 26 00, POWER DISTRIBUTION UNITS FOR UNINTERRUPTIBLE POWER SYSTEMS: For factory-installed TVSS. 1.3 QUALITY ASSURANCE Refer to P

4、aragraph, QUALIFICATIONS, in Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS. 1.4 SUBMITTALS A. Include rated capacities, operating weights, electrical characteristics, furnished specialties, and accessories. B. Operation and Maintenance Data: For TVSS devices to include in emergency, op

5、eration, and maintenance manuals. C. Warranties: Sample of special warranties. D. Certifications: 1. Two weeks prior to final inspection, submit four copies of the following to the Resident Engineer: a. Certification by the Contractor that the assemblies have been properly installed, adjusted and te

6、sted.3. b. Certified copies of all of the factory design and production tests, field test data sheets and reports for the assemblies. 1.5 APPLICABLE PUBLICATIONS Publications listed below (including amendments, addenda, revisions, supplement and errata) form a part of this specification to the exten

7、t Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4-09 26 43 13-2 referenced. Publications are referenced in the text by the basic designation only. A. Institute of Engineering and Electronic Engineers (IEEE): IEEE C62.41.2 Recommended Practice on Ch

8、aracterization of Surges in Low-Voltage (1000 V and Less) AC Power Circuits IEEE C62.45 Recommended Practice on Surge Testing for Equipment Connected to Low-Voltage (1000 V and Less) AC Power Circuits B. National Electrical Manufacturers Association (NEMA): NEMA LS 1 Low Voltage Surge Protective Dev

9、ices C. Underwriters Laboratories, Inc. (UL): UL 1283 Electromagnetic Interference Filters UL 1449Surge Protective Devices D. National Fire Protection Association (NFPA): NFPA 70 National Electrical Code (NEC) PART 2 - PRODUCTS 2.1 SWITCHGEAR/SWITCHBOARD SUPPRESSORS A. Surge Protection Devices: 1. C

10、omply with UL 1449. /2. Modular design with field-replaceable modules/Non-modular design/. 3. Fuses, rated at 200-kA interrupting capacity. 4. Fabrication using bolted compression lugs for internal wiring. 5. Integral disconnect switch. 6. Redundant suppression circuits. 7. Redundant replaceable mod

11、ules. 8. Arrangement with copper bus bars and for bolted connections to phase buses, neutral bus, and ground bus. 9. Arrangement with wire connections to phase buses, neutral bus, and ground bus. 10. LED indicator lights for power and protection status. 11. Audible alarm, with silencing switch, to i

12、ndicate when protection has failed. 12. Form-C contacts rated at 5 A and 250-V ac, one normally open and one normally closed, for remote monitoring of protection status. Contacts shall reverse on failure of any surge diversion module or Provided by IHSNot for ResaleNo reproduction or networking perm

13、itted without license from IHS-,-,-4-09 26 43 13-3 on opening of any current-limiting device. Coordinate with building power monitoring and control system. 13. Four-digit transient-event counter set to totalize transient surges. B. Peak Single-Impulse Surge Current Rating: /320 kA per mode/640 kA/ /

14、240 kA per mode/480 kA/ /160 kA per mode/320 kA/ per phase. C. Minimum single impulse current ratings, using 8-by-20-mic.sec waveform described in IEEE C62.41.2 1. Line to Neutral: /70,000/ /Insert value/ A. 2. Line to Ground: /70,000/ /Insert value/ A. 3. Neutral to Ground: /50,000/ /Insert value/

15、A. D. Protection modes and UL 1449 SVR for grounded wye circuits shall be as follows: 1. Line to Neutral: 800 V for 480Y/277 V, 400 V for 208Y/120 V. 2. Line to Ground: 800 V for 480Y/277 V, 400 V for 208Y/120 V. 3. Neutral to Ground: 800 V for 480Y/277 V, 400 V for 208Y/120 V. E. Protection modes a

16、nd UL 1449 SVR for 240/120 V, single-phase, 3-wire circuits shall be as follows: 1. Line to Neutral: 400 V. 2. Line to Ground: 400 V. 3. Neutral to Ground: 400 V. F. Protection modes and UL 1449 SVR for 240/120-V, 3-phase, 4-wire circuits with high leg shall be as follows: 1. Line to Neutral: 400 V,

17、 800 V from high leg. 2. Line to Ground: 400 V. 3. Neutral to Ground: 400 V. G. Protection modes and UL 1449 SVR for 240 V or 480 V, 3-phase, 3-wire, delta circuits shall be as follows: 1. Line to Line: 2000 V for 480 V, 1000 V for 240 V. 2. Line to Ground: 2000 V for 480 V, 1000 V for 240 V. 2.2 PA

18、NELBOARD SUPPRESSORS A. Surge Protection Devices: 1. Non-modular. 2. LED indicator lights for power and protection status. 3. Audible alarm, with silencing switch, to indicate when protection has failed. B. Peak Single-Impulse Surge Current Rating: /160 kA per mode/320 kA/ /120 kA per mode/240 kA/ /

19、80 kA per mode/160 kA/ per phase. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4-09 26 43 13-4 C. Minimum single impulse current ratings, using 8-by-20-mic.sec waveform described in IEEE C62.41.2: 1. Line to Neutral: /70,000/ /Insert value/ A. 2.

20、Line to Ground: /70,000/ /Insert value/ A. 3. Neutral to Ground: /50,000/ /Insert value/ A. D. Protection modes and UL 1449 SVR for grounded wye circuits shall be as follows: 1. Line to Neutral: 800 V for 480Y/277 V, 400 V for 208Y/120 V. 2. Line to Ground: 800 V for 480Y/277 V, 400 V for 208Y/120 V

21、. 3. Neutral to Ground: 800 V for 480Y/277 V, 400 V for 208Y/120 V. E. Protection modes and UL 1449 SVR for 240/120-V, single-phase, 3-wire circuits shall be as follows: 1. Line to Neutral: 400 V. 2. Line to Ground: 400 V. 3. Neutral to Ground: 400 V. F. Protection modes and UL 1449 SVR for 240/120-

22、V, 3-phase, 4-wire circuits with high leg shall be as follows: 1. Line to Neutral: 400 V, 800 V from high leg. 2. Line to Ground: 400 V. 3. Neutral to Ground: 400 V. G. Protection modes and UL 1449 SVR for 240 V or 480 V, 3-phase, 3-wire, delta circuits shall be as follows: 1. Line to Line: 2000 V f

23、or 480 V, 1000 V for 240 V. 2. Line to Ground: 1500 V for 480 V, 800 V for 240 V. 2.3 ENCLOSURES A. Indoor Enclosures: NEMA 250 /Type 1/ /Type 12/. B. Outdoor Enclosures: NEMA 250 /Type 3R/ /Type 4/ /Type 4X/. PART 3 - EXECUTION 3.1 INSTALLATION A. Install TVSS devices at switchboard, switchgear, or

24、 panelboard on load side, with ground lead bonded to service entrance ground. B. Install TVSS devices for panelboards and auxiliary panels with conductors or buses between suppressor and points of attachment as short and straight as possible. Do not exceed manufacturers recommended lead length. Do n

25、ot bond neutral and ground. 1. Provide a circuit breaker, sized by manufacturer, as a dedicated disconnecting means for TVSS unless otherwise shown on drawings. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4-09 26 43 13-5 3.2 ACCEPTANCE CHECKS AND

26、 TESTS A. Perform in accordance with the manufacturers recommendations. Include the following visual and mechanical inspections and electrical tests: 1. Visual and Mechanical Inspection a. Compare equipment nameplate data with specifications and approved shop drawings. b. Inspect physical, electrica

27、l, and mechanical condition. c. Verify that disconnecting means and feeder size and maximum to TVSS unit correspond to approved shop drawings. d. Verifying tightness of accessible bolted electrical connections by calibrated torque-wrench method. e. Clean TVSS unit. f. Complete startup checks accordi

28、ng to manufacturers written instructions. g. Verify the correct operation of all sensing devices, alarms, and indicating devices. 3.3 STARTUP A. Do not energize or connect switchgear, switchboards, or panelboards to their sources until TVSS devices are installed and connected. B. Do not perform insu

29、lation resistance tests of the distribution wiring equipment with the TVSS installed. Disconnect before conducting insulation resistance tests, and reconnect immediately after the testing is over. 3.4 SPARE PARTS A. Furnish extra materials that match products installed and that are packaged with pro

30、tective covering for storage and identified with labels describing contents. 1. Replaceable Protection Modules: One of each size and type installed. 3.5 INSTRUCTION Provide factory certified technician to train Government maintenance personnel to maintain TVSS devices. Training shall be provided for

31、 a total period of 4 hours of normal working time and shall start after the system is functionally complete but prior to final acceptance test. Training shall cover all essential items contained in the operation and maintenance manual. - - -END OF SECTION - - - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-