Section 264313 - Surge Protection for Low-Voltage Electrical Power Circuits

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This Product MasterSpec Section modifies the original MasterSpec text and does not include the full content of the original MasterSpec Section.

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SECTION 264313 - SURGE PROTECTION FOR LOW-VOLTAGE ELECTRICAL POWER CIRCUITS

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PART 1 - GENERAL

0.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

0.2 SUMMARY

A. Section includes Surge Protective Devices (SPD) for the protection of electrical circuits from the effects of externally generated lightning-induced currents, substation switching transients, and internally generated transients resulting from inductive or capacitive load switching, motors, drives.

0.3 DEFINITIONS

A. In: Nominal Discharge Current. SURGE PROTECTION FOR LOW-VOLTAGE ELECTRICAL POWER 264313 - 1 CIRCUITS Copyright 2011 AIA MasterSpec Premium 6/11 PRODUCT MASTERSPEC LICENSED BY AVITRU, LLC TO SSI, AN ILSCO COMPANY.

B. MCOV: Maximum Continuous Operating Voltage.

C. Mode(s), also Modes of Protection: The pair of electrical connections where the VPR applies.

D. MOV: Metal Oxide Varistor; an electronic component with a significant non-ohmic current- voltage characteristic.

E. OCPD: Overcurrent Protective Device.

F. SCCR: Short Circuit Current Rating.

G. SPD: Surge Protective Device.

H. VPR: Voltage Protection Rating.

0.4 ACTION SUBMITTALS

A. Product Data: For each type of product.

1. Include rated capacities, operating characteristics, electrical characteristics, and furnished specialties and accessories. 2. Copy of UL Category Code VZCA certification, as a minimum, listing the tested values

for VPRs, In ratings, MCOVs, type designations, OCPD requirements, model numbers, system voltages, and modes of protection.

0.5 CLOSEOUT SUBMITTALS

A. Maintenance Data: For SPDs to include in maintenance manuals.

0.6 WARRANTY

A. Manufacturer's Warranty: Manufacturer agrees to repair or replace SPDs (product only) that fail in materials or workmanship within specified warranty period.

1. Warranty Period: [Five] [Ten] [Fifteen] [Twenty-Five] years from date of Substantial Completion.

PART 2 - PRODUCTS

0.1 GENERAL SPD REQUIREMENTS

A. Comply with NFPA 70.

B. Comply with ANSI/UL 1449.

C. Comply with ANSI/UL 1283 if the SPD is a Type 2 device.

D. MCOV of the SPD shall be the nominal system voltage.

E. SCCR: Equal or exceed 200 kA.

F. In Rating: 20 kA

G. VPR ratings should not exceed the values listed below for the applicable voltage:

Power Distribution System L-N L-G N-G L-L 120 V, 2W + ground 700 700 700 240 V, 2W + ground 1000 1000 1000 120/240 V, 3W + ground 700 1500 700 1500 208Y/120 V, WYE 4W + ground 700 1500 700 1500 480Y/277 V, WYE 4W + ground 1200 2500 1200 2500 480Y/277 V, WYE 4W + HRG 1200 2500 1200 2500 600Y/347 V, WYE 4W + ground 1800 1800 1800 4000 240 V, DELTA 3W + ground 1000 1000 240 V, DELTA 3W (ungrounded) 1000 1000 480 V, DELTA 3W + ground 1800 1800 480 V, DELTA 3W (ungrounded) 1800 1800

0.2 ACCEPTABLE MANUFACTURERS

A. Basis-of-Design Product: Subject to compliance with requirements, provide SSI, an Ilsco Company (www.surgesuppression.com); [Advantage] [SpecPRO] [Surgency] or a comparable product by one of the following:

1. Advanced Protection Technologies Inc. (APT). 2. Current Technology Inc. 3. LEA International. 4. Liebert; a brand of Emerson Electric Co. 5. .

0.3 SERVICE ENTRANCE SPD

A. Peak Surge Current Rating: The minimum single-pulse surge current withstand rating per phase shall not be less than [300 kA] [200 kA] [100 kA] . The peak surge current rating shall be the arithmetic sum of the ratings of the individual MOVs in a given mode.

B. SPD Features and Options:

1. Integral Disconnect Switch: Optional if there is no provision for a dedicated 30 A breaker. 2. Indicator Lights: One per phase for protection status. 3. Contacts: Form-C. 4. SPD Type: [Type 1][Type 2]. 5. Alarm: Audible. 6. Additional Options: .

0.4 EMERGENCY PANEL OR CRITICAL OPERATIONS POWER SYSTEMS (COPS) PANEL SPD

B. SPD Features and Options:

0.5 BRANCH PANEL/PANELBOARD SPD

B. SPDs: Comply with UL 1449, Type 2.

C. SPD Features and Options:

0.6 SPD ENVIRONMENTAL RATING

A. Indoor Enclosures: The NEMA rating of the SPD should be suitable for the environment in which it is being installed. [NEMA 1] [NEMA 4X] .

B. Outdoor Enclosures: The NEMA rating of the SPD should be suitable for the environment in which it is being installed. [NEMA 4X] [NEMA 4X Stainless steel] .

PART 3 - EXECUTION

0.1 INSTALLATION

A. Install in accordance with manufacturers installation instructions, applicable NEC codes, local codes, and the requirements of the authority having jurisdiction.

B. Install SPDs with conductors between suppressor and points of attachment as short and straight as possible. Adjust circuit-breaker positions to achieve shortest and straightest leads.

C. Use ILSCO® Cool Seal® connectors and splices when additional lead length may be needed. Wire nuts are unacceptable. Do not exceed 36-inches (914-mm) combined lead length without consulting a factory representative.

0.2 FIELD QUALITY CONTROL

A. Perform the following tests:

1. If applicable, compare equipment nameplate data for compliance with drawings and specifications. 2. Verify that electrical wiring installation complies with manufacturer's written installation requirements.

END OF SECTION 264313

SURGE PROTECTION FOR LOW-VOLTAGE ELECTRICAL POWER 264313 - 5 CIRCUITS