Transcript
SECTION [26 43 13.50] [16289] SURGE PROTECTIVE DEVICES FOR LOW-VOLTAGE ELECTRICAL POWER CIRCUITS PART 1 - GENERAL 1.1
SCOPE A.
1.2
RELATED DOCUMENTS A.
Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.
B.
Other sections that may relate to the work in this section include, but are not limited to, the following: 1. [Section 26 24 13 - Switchboards 2. Section 26 24 16 – Panelboards 3. Section 26 24 19 – Motor Control Centers 4. Section 26 25 00 – Busway]
1.3
1.4
This section describes the materials and installation requirements for surge protective devices (SPDs) for the protection of all AC electrical circuits.
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.
B.
Submittals shall include UL 1449 3rd Edition Listing documentation verifiable by visiting www.UL.com, clicking “Certifications” link, searching using UL Category Code: VZCA. 1. Short Circuit Current Rating (SCCR) 2. Voltage Protection Ratings (VPRs) for all modes 3. Maximum Continuous Operating Voltage rating (MCOV) 4. I-nominal rating (I-n) 5. SPD shall be Type 1 UL listed and labeled
C.
Upon request, an un-encapsulated and complete SPD formally known as TVSS shall be presented for visual inspection.
D.
Product warranty statement with a minimum duration of ten (10) years LEED REQUIREMENTS A.
1.5
The materials/products/methods specified in this section have an impact on the Project’s LEED requirements. The General Contractor shall verify and document the contribution of the materials/products/methods provided to the Project’s LEED requirements. This contribution shall be documented as specified in this section, Division 01 section Sustainable Architecture and LEED Requirements, Division 01 section Construction Waste Management, and as required in the LEED 2009 for New Construction and Major Renovation, and errata. LEED requirements impacted by this section are: 1. Credit MR2: Construction Waste Management. See Division 01 Section Construction Waste Management for construction waste management requirements. 2. Credit MR5: Regional Materials. 3. Credit EQ4.1: Low Emitting Materials, Adhesives & Sealants. 4. Credit EQ4.2: Low Emitting Materials, Paints & Coatings.
RELATED STANDARDS
April 14, 2016 Surge Protective Devices for Low-Voltage Electrical Power Circuits [26 43 13.50] [16289]-1
[Project Name]
A.
IEEE C62.41.1, IEEE Guide on the Surge Environment in Low-Voltage (1000 V and Less) AC Power Circuits,
B.
IEEE C62.41.2, IEEE Recommended Practice on Characterization of Surges in Low-Voltage (1000 V and Less) AC Power Circuits,
C.
IEEE C62.45, IEEE Recommended Practice on Surge Testing for Equipment Connected to Low-Voltage (1000 V and Less) AC Power Circuits.
D.
National Electrical Code: Articles 285, 700, and 708.
E.
UL 1283 - Electromagnetic Interference Filters
F.
UL 1449, Third Edition, effective September 29, 2009 – Surge Protective Devices
1.6
LISTING REQUIREMENTS A.
SPD shall bear the UL Mark and shall be Listed to most recent editions of UL 1449 and UL 1283. “Manufactured in accordance with” is not equivalent to UL listing and does not meet the intent of this specification.
B.
SPD and performance parameters shall be posted at www.UL.com under Category Code: VZCA. Products or parameters without posting at UL.com shall not be approved. (To access UL Category Code click on Certifications in the left menu bar of UL’s home page. Type “VZCA” into the Category Code search box and click Search.)
1.7
QUALITY ASSURANCE A.
Manufacturer Qualifications: Engage a firm with at least ten (10) years of experience in manufacturing surge protective devices (SPDs). When requested by the Engineer, an acceptable list of installations with similar equipment shall be provided demonstrating compliance with this requirement.
B.
Manufacturer shall be ISO 9001 or 9002 certified.
C.
The SPD shall be compliant with the Restriction of Hazardous Substances (RoHS) Directive 2002/95/EC.
1.8
DELIVERY, STORAGE AND HANDLING A.
Handle and store equipment in accordance with manufacturer’s Installation and Maintenance Manuals. One (1) copy of this document is to be provided with the equipment at time of shipment.
PART 2 - PRODUCTS 2.1
LEED MATERIAL REQUIREMENTS
A.
2.2
Products and materials provided in this section shall comply with and contribute to the Project’s LEED requirements. LEED requirements are as indicated in this section and as specified in Division 01 section Sustainable Architecture and LEED Requirements. Contributions to LEED requirements shall be documented as indicated in the submittals paragraph of this section and as specified in Division 01 section Sustainable Architecture and LEED Requirements. MANUFACTURERS
A.
2.3
[Provide an externally mounted surge protective device by Siemens or pre-approved equal. Approved manufacturers are as follows: 1. SIEMENS 2. .] SURGE PROTECTIVE DEVICE FEATURES
SPD shall be UL 1449 3rd Edition listed and labeled verifiable by visiting www.UL.com, clicking “Certifications” link, searching using UL Category Code: VZCA. April 14, 2016 [Project Name] Surge Protective Devices for Low-Voltage Electrical Power Circuits [26 43 13.50] [16289]-2 A.
B.
SPD shall be UL 1449 listed and labeled with 200kA Short Circuit Current Rating (SCCR). Fuse ratings shall not be considered in lieu of demonstrated withstand testing of SPD, per NEC 285.6.
C.
SPD shall be UL 1449 labeled as Type 1 intended for use without need for external or supplemental overcurrent controls. Every suppression component of every mode, including NG, shall be protected by internal overcurrent and thermal over temperature controls. SPDs relying upon external or supplementary installed safety disconnectors do not meet the intent of this specification.
D.
SPD shall be UL 1449 labeled with 20kA I-nominal (I-n) (verifiable at UL.com) as recommended for UL 96A Lightning Protection Master Label and NFPA 780.
E.
Suppression components shall be heavy duty ‘large block’ MOVs, each exceeding 30mm diameter.
F.
Standard 7-Mode Protection paths: SPD shall provide surge current paths for all modes of protection: L-N, L-G, L-L, and N-G for Wye systems; L-L, L-G in Delta and impedance grounded Wye systems. [Delete: If “true 10-Mode” protection is selected.]
G.
True 10-Mode Protection paths: SPD shall provide “directly connected protection elements” between all possible modes of protection: L-N, L-G, L-L, and N-G for Wye systems; L-L, L-G in Delta and impedance grounded Wye systems. [Deletable note: 10-Mode protection maybe selected for projects where discrete L-L MOV protection is preferred. For most projects this feature is not required.]
H.
If a dedicated breaker for the SPD is not provided in the switchboard, the service entrance SPD shall include an integral UL Recognized disconnect switch. A dedicated breaker shall serve as a means of disconnect for distribution SPDs.
I.
SPD shall meet or exceed the following criteria: 1. Minimum surge current capability (single pulse rated) per phase shall be: a. Service Entrance, Emergency Power Switchboards, and MCC applications: 1.) Siemens Model TPS3 12 with Maximum 7-Mode surge current capability shall be [200kA] [300kA] [500kA] per phase. [Note: Delete unselected kA ratings, and delete entire section if 10-Mode is selected.] 2.) Siemens Model TPS3 L12 with Maximum 10-Mode surge current capability shall be [150kA] [300kA] [450kA] per phase. [Note: Delete unselected kA ratings, and delete entire section if 7-Mode is selected.] b. Distribution, branch, and emergency power panelboards: 1.) Siemens Model TPS3 09 with Maximum surge current capability of 100kA per phase 2. UL 1449 Listed Voltage Protection Ratings (VPRs) shall not exceed the following: VOLTAGE 208Y/120V 480Y/277V
I.
L-N 700V 1200V
L-G 700V 1200V
N-G 700V 1200V
UL 1449 Listed Maximum Continuous Operating Voltage (MCOV) for L-N, L-G, and N-G modes of protection (verifiable at UL.com): System Voltage 208Y/120 480Y/277V
Allowable System Voltage Fluctuation (%) 25% 20%
MCOV 150V 320V
J.
SPD shall include a serviceable, replaceable module (excluding Distribution). [Note: Delete or adjust as appropriate.]
K.
Service Entrance SPD shall be complimentary UL 1283 listed for EMI/RFI filtering with minimum attenuation of -50dB at 100kHz.
April 14, 2016 Surge Protective Devices for Low-Voltage Electrical Power Circuits [26 43 13.50] [16289]-3
[Project Name]
L.
SPD shall have a warranty for a period of ten (10) years, incorporating unlimited replacements of suppressor parts if they are destroyed by transients during the warranty period.
M.
Service Entrance SPDs shall be equipped with the following diagnostics: 1. Visual LED diagnostics including a minimum of one green LED indicator per phase, and one red service LED. 2. Audible alarm with on/off silence function and diagnostic test function (excluding branch). 3. Form C dry contacts 4. Optional – Surge Counter 5. No other test equipment shall be required for SPD monitoring or testing before or after installation.
N.
Distribution Panels SPDs shall be equipped with the following diagnostics: 1. Visual LED diagnostics including a minimum of one green LED indicator per phase, and one red service LED. 2. Audible alarm with on/off silence function and diagnostic test function (excluding branch). 3. Form C dry contacts 4. No other test equipment shall be required for SPD monitoring or testing before or after installation.
PART 3 - EXECUTION 3.1
INSTALLATION A.
3.2
The installation shall meet the following criteria: 1. Install per manufacturer’s recommendations and contract documents. 2. Install units plumb, level and rigid without distortion 3. One primary suppressor shall be installed external to the service entrance in accordance with manufacturer instructions. 4. Service Entrance SPD shall be installed on the line or load side of the main service disconnect. 5. Service Entrance SPD ground shall be bonded to the service entrance ground. 6. At Service Entrance or Transfer Switch, a UL approved disconnect switch shall be provided as a means of servicing disconnect if a 60A breaker is not available. 7. One SPD shall be installed external to each designated distribution panelboard. 8. At Distribution, MCC and Branch, SPD shall have an independent means of servicing disconnect such that the protected panel remains energized. A 30A breaker (or larger) may serve this function. 9. SPD shall be installed per manufacturer’s installation instructions with lead lengths as short (less than 24”) and straight as possible. Gently twist conductors together. 10. Installer may reasonably rearrange breaker locations to ensure short & straightest possible leads to SPDs. 11. Before energizing, installer shall verify service and separately derived system Neutral to Ground bonding jumpers per NEC. ADJUSTMENTS AND CLEANING
A.
Remove debris from SPD and wipe dust and dirt from all components.
B.
Repaint marred and scratched surfaces with touch up paint to match original finish.
3.3
TESTING A.
Check tightness of all accessible mechanical and electrical connections to assure they are torqued to the minimum acceptable manufacture’s recommendations.
B.
Check all installed panels for proper grounding, fastening and alignment.
END OF SECTION April 14, 2016 Surge Protective Devices for Low-Voltage Electrical Power Circuits [26 43 13.50] [16289]-4
[Project Name]
