SECTION 264313 - SURGE PROTECTIVE DEVICE (SPD) SYSTEM
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
SUMMARY
A.
1.3
Surge Protective Device (SPD):
1.
Provide Surge Protective Devices (SPDs) for the protection of AC electrical circuits and
equipment from the effects of lightning induced currents, substation switching transients,
and internally generated transients resulting from inductive and/or capacitive load
switching and other electronic equipment.
2.
The surge suppression system shall be comprised of Type 1, 2, 3 or 4 devices in
conformance with ANSI/UL 1449 latest edition, having the electrical characteristics,
ratings, and modifications as specified, and indicated on the Drawings.
RELATED WORK SPECIFIED ELSEWHERE
A.
Comply with applicable requirements of Section 261116, “600 Volt Secondary Unit
Substation”.
B.
Comply with applicable requirements of Section 262416, “Panelboards”.
C.
Comply with applicable requirements of Section 267000, “Electrical Systems Testing”.
1.4
DEFINITIONS
A.
ANSI: American National Standard Institute.
B.
ATS: Acceptance Testing Specifications.
C.
CSA: Canadian Standards Association.
D.
IEEE: Institute of Electrical and Electronic Engineers.
E.
LED: Light Emitting Diode.
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F.
MCOV: Maximum Continuous Operating Voltage.
G.
NEC: National Electrical Code.
H.
NEMA: National Electrical Manufacturers Association.
I.
NETA: InterNational Electrical Testing Association.
J.
NFPA: National Fire Protection Association.
K.
SPD: Surge Protective Device, both singular and plural.
L.
UL: Underwriters Laboratories.
M.
VPR: Voltage Protection Rating.
1.5
QUALITY ASSURANCE
A.
Electrical Components, Devices and Accessories: Listed and labeled as defined in NFPA 70, by
a testing agency, and marked for intended location and application.
B.
SPD shall bear the UL Mark and shall be listed to ANSI/UL 1449 latest edition and UL 1283.
“Manufactured in accordance with” is not equivalent to UL listings and does not meet the intent
of this specification.
C.
Additional Compliance: All devices shall be free of Radon 226.
D.
ANSI/IEEE C62.11-2005 for distribution class arresters.
E.
IEEE C62.72 - 2007 IEEE Guide for the application of surge-protective devices for low voltage
(1000V or less) AC power circuits.
F.
ANSI/UL 1449 latest edition.
G.
Mil Standards: Comply with Standard 220B Method of Insertion - Loss Measurement.
H.
CSA 22/2, No. 14 & 66 (CSA Requirements for power electronics).
I.
ANSI IEEE Std. 519-1992 (Harmonic limits).
J.
UL 508C (UL requirements for power conversion equipment).
K.
Warranty: The warranty shall be valid for ten (10) years from the date of final test and
acceptance, for service entrance suppressors. For panelboard suppressors, warranty shall be
valid for ten (10) years from date of purchase.
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1.6
SUBMITTALS
A.
1.7
Product Data: Submit manufacturer’s data on SPD and associated components identifying
applicable project specific features and components.
PROJECT CONDITIONS
A.
Placing Into Service: Do not energize or connect panelboards to their sources until the surge
protective devices are installed and connected.
B.
Examine areas and conditions under which the surge protective devices are to be installed and
advice Architect in writing of conditions detrimental to the completion of work.
1.8
QUALIFICATIONS
A.
The manufacturer of this equipment shall have produced similar equipment for a minimum
period of five (5) years.
B.
Products must all be provided by the same SPD manufacturer, unless indicated otherwise.
1.9
WARRANTY
A.
Manufacturer shall warranty equipment to be free from defects in material and workmanship for
one (1) year from date of Owner’s acceptance.
B.
Installation contractor shall warranty installation to be free from defects in material and
workmanship for one (1) year from date of Owner’s acceptance.
PART 2 - PRODUCTS
2.1
TYPE 1 & 2 SPD (SERVICE ENTRANCE EQUIPMENT) (600 VOLTS OR LESS)
A.
Manufacturers:
1.
2.
3.
4.
5.
6.
7.
8.
9.
Current Technology (www.currenttechnology.com).
Eaton/Cutler-Hammer (www.eatonelectrical.com).
General Electric (www.geindustrial.com).
LEA International Inc. (www.leainternational.com).
Liebert (www.liebert.com).
Best Quality Power Inc. (www.bestqualitypower.com).
Lightning Protection Corp (www.lightningprotectioncor.com).
Joslyn (www.joslynhivoltage.com).
Square D (www.squareD.com).
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B.
C.
Type 1 & 2 SPD:
1.
Equipment shall comply with ANSI/IEEE C62.41.1-2002 and C62.41.2-2002 (IEEE
587), Type 1 & 2 requirements, tested to ANSI C62.45-2002, listed to UL 1449, latest
edition, and shall bear the UL label.
2.
Equipment shall operate bi-directionally and treat both positive and negative impulses,
yielding line control and short flicker ride-through, and with a minimum power handling
capacity of 300,000 transient amps per phase in compliance with ANSI/IEEE C62-41.12002 and C62.41.2-2002. Minimum repetitive surge current capability shall be as per
ANSI/IEEE C62.41 and ANSI/IEEE C62.45-2002.
3.
Equipment shall protect against line-to-line, line-to-neutral, line-to-ground, and neutralto-ground voltage transients. Equipment shall provide high frequency noise filtering of
up to 50 db attenuation (MIL-STD), both in normal and common modes, at frequencies
of 100 kHz to 100 MHz.
4.
Where SPDs are installed ahead of the main overcurrent device in the service entrance
equipment the SPD shall be UL labeled and listed as a Type 1 SPD.
5.
Where SPDs are installed on the load side of the main overcurrent device in the service
entrance equipment the SPD shall be UL labeled and listed as a Type 1 or 2 SPD.
6.
Nominal discharge current (In), all SPDs applied to the distribution system shall have a
20kA In rating regardless of their SPD type (includes Types 1 and 2) or operating voltage.
SPDs having an In less than 20kA are not acceptable.
7.
Filtering Attenuation Frequencies:
a.
44 dB @ 100 kHz
b.
33 dB @ 1 MHz
c.
36 dB @ 10 MHz
d.
53 dB @ 100 MHz
Surge Protection Devices:
1.
2.
3.
4.
5.
6.
7.
8.
9.
Comply with UL 1449, latest edition.
LED indicator lights for power and protection status.
Audible alarm, with silencing switch, to indicate when protection has failed.
Form-C contacts rated at 5A and 250 volt 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 on opening of any current-limiting device. Coordinate
with building power monitoring and control system.
Fuses, rated at 200kA interrupting capacity.
Fabrication using bolted compression lugs for internal wiring.
Integral disconnect switch.
Redundant suppression circuits.
Redundant replaceable modules.
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10.
11.
12.
D.
Arrangement with copper bus bars and for bolted connections to phase buses, neutral bus,
and ground bus.
Arrangement with wire connections to phase buses, neutral bus, and ground bus.
Four-digit (minimum) transient-event counter set to totalize transient surges.
Peak Single-Impulse Surge Current Rating:
Type
TYPE 1 & 2
TYPE 1 & 2
E.
Line to Neutral: 70,000A.
Line to Ground: 70,000A.
Neutral to Ground: 50,000A.
Protection modes and UL 1449 VPR for grounded wye, 3 phase, 4 wire circuits shall be as
follows:
Protection Mode for grounded wye, 3 phase, 4 wire circuits
Mode
208Y/120V
480Y/277V
Line to Neutral
700V
1000V
Line to Ground
700V
1200V
Neutral to Ground
600V
1000V
Line to Line
1000V
1800V
G.
Line to Neutral: 700V.
Line to Ground: 700V.
Neutral to Ground: 600V.
Line to Line: 1000V.
Protection modes and UL 1449 VPR for 240/120 volt AC, 3 phase, 4 wire circuits with high leg
shall be as follows:
1.
2.
3.
4.
Line to Neutral: 700V.
Line to Ground: 700V.
Neutral to Ground: 600V.
Line to Line: 1000V.
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600Y/347V
1500V
1500V
1200V
2500V
Protection modes and UL 1449 VPR for 240/120 volt AC, single phase, 3 wire circuits shall be
as follows:
1.
2.
3.
4.
H.
Per Phase
320kA
250kA
Minimum single impulse current ratings, using 8-by-20-mic.sec waveform described in
IEEE C62.41.1-2002 and C52.41.2-2002.
1.
2.
3.
F.
Bus Ampacity
2000A to 4000A
Up to 1600A
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I.
Protection modes and UL 1449 VPR for delta, 3 phase, 3 wire, circuits shall be as follows:
Protection Mode for delta, 3 phase, 3 wire circuits
Mode
240V
480V
Line to Line
1000V
1800V
Line to Ground
1000V
1800V
2.2
600V
2500V
2500V
TYPE 2 SPD (POWER DISTRIBUTION AND BRANCH CIRCUIT PANELS)
A.
Manufacturers:
1.
2.
3.
4.
5.
6.
7.
8.
9.
B.
Best Quality Power Inc. (www.bestqualitypower.com).
Current Technology (www.currenttechnology.com).
Eaton/Cutler-Hammer (www.eatonelectrical.com).
General Electric (www.geindustrial.com).
LEA International Inc. (www.leainternational.com).
Liebert (www.liebert.com).
Lightning Protection Corp (www.lightningprotectioncor.com).
Joslyn (www.joslynhivoltage.com).
Square D (www.squareD.com).
Type 2 SPD:
1.
Equipment shall comply with ANSI/IEEE C62.41.1-2002 and C62.41.2-2002
(IEEE 587), Type 2 requirements, tested to ANSI C62.45-2002, listed to UL 1449, latest
edition, and shall bear the UL label.
2.
Distribution Panels:
a.
Equipment shall operate bi-directionally and treat both positive and negative
impulses, yielding line control and short flicker ride-through, and in conjunction
with the service entrance SPD, provide a minimum power handling capacity of
200,000 transient amps per phase in compliance with ANSI/IEEE C-62.41.1-2002
and C-62.41.2-2002. Minimum repetitive surge current capability shall be as per
ANSI/IEEE C62.45-2002.
3.
b.
Equipment shall protect against line-to-line, line-to-neutral, line-to-ground, and
neutral-to-ground voltage transients. Equipment shall provide high frequency
noise filtering of up to 60 db attenuation (MIL-STD-220B), both in normal and
common modes, at frequencies of 100 kHz to 100 MHz.
c.
SPDs located at distribution panels shall be UL listed and labeled for Type 2
application.
Receptacle Panels:
a.
Equipment shall operate bi-directionally and treat both positive and negative
impulses, yielding line control and short flicker ride-through, and in conjunction
with the service entrance SPD, provide a minimum power handling capacity of
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b.
c.
4.
C.
Nominal discharge current (In), all SPDs applied to the distribution system shall have a
20kA In rating regardless of their SPD type (includes Types 1 and 2) or operating voltage.
SPD’s having an In less than 20kA are not acceptable.
Surge Protection Devices:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
D.
160,000 transient amps per phase in compliance with ANSI/IEEE C-62.41.1-2002
and C-62.41.2-2002. Minimum repetitive surge current capability shall be as per
ANSI/IEEE C62.45-2002.
Equipment shall protect against line-to-line, line-to-neutral, line-to-ground, and
neutral-to-ground voltage transients. Equipment shall provide high frequency
noise filtering of up to 60 db attenuation (MIL-STD-220A), both in normal and
common modes, at frequencies of 100 kHz to 100 MHz.
SPDs located at receptacle panels shall be UL listed and labeled for Type 2
application.
Comply with UL 1449, latest edition.
LED indicator lights for power and protection status.
Audible alarm, with silencing switch, to indicate when protection has failed.
Form-C contacts rated at 5A and 250 volt 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 on opening of any current-limiting device. Coordinate
with building power monitoring and control system.
Short-circuit current rating complying with UL 1449, and matching or exceeding the
panelboard short-circuit rating and redundant suppression circuits; with individually
fused metal-oxide varistors.
Fuses, rated at 200kA interrupting capacity.
Fabrication using bolted compression lugs for internal wiring.
Integral disconnect switch.
Redundant suppression circuits.
Redundant replaceable modules.
Arrangement with wire connections to phase buses, neutral bus, and ground bus.
Four-digit (minimum) transient-event counter set to totalize transient surges.
Peak Single-Impulse Surge Current Rating:
Type
Type 2
Type 2
Type 2
Type 2
E.
Per Phase
200kA
160kA
120kA
60kA
Minimum single impulse current ratings, using 8-by-20-mic.sec waveform described in IEEE
C62.41.1-2002 and C62.41.2-2002:
1.
2.
Line to Neutral: 70,000A.
Line to Ground: 70,000A.
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Bus Ampacity
1000A to 1600A
600A to less than 1000A
225A to 400A
Up to 200A
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3.
F.
Neutral to Ground: 50,000A.
Protection modes and UL 1449 VPR for grounded wye, 3 phase, 4 wire circuits shall be as
follows:
Protection Mode for grounded wye, 3 phase, 4 wire circuits
Mode
208Y/120V
480Y/277V
Line to Neutral
700V
1000V
Line to Ground
700V
1200V
Neutral to Ground
600V
1000V
Line to Line
1000V
1800V
G.
Protection modes and UL 1449 VPR for 240/120 volt AC, single-phase, 3-wire circuits shall be
as follows:
1.
2.
3.
4.
H.
Line to Neutral: 700V.
Line to Ground: 700V.
Neutral to Ground: 600V.
Line to Line: 1000V.
Protection modes and UL 1449 VPR for 240/120 volt AC, 3 phase, 4 wire circuits with high leg
shall be as follows:
1.
2.
3.
4.
I.
600Y/347V
1500V
1500V
1200V
2500V
Line to Neutral: 700V.
Line to Ground: 700V.
Neutral to Ground: 600V.
Line to Line: 1000V.
Protection modes and UL 1449 VPR for delta, 3 phase, 3 wire, circuits shall be as follows:
Protection Mode for delta, 3 phase, 3 wire circuits
Mode
240V
480V
600V
Line to Line
1000V
1800V
2500V
Line to Ground
1000V
1800V
2500V
Maximum continuous operating voltage (MCOV) for Type 1 & 2 SPD shall be 125% of the
nominal system operating voltage.
PART 3 - EXECUTION
3.1
PROJECT CONDITIONS
A.
Service Conditions: Rate SPD for continuous operation under the following conditions, unless
otherwise indicated:
1.
Maximum Continuous Operating Voltage (MCOV): Not less than 115% of nominal
system operating voltage.
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2.
3.
4.
3.2
Operating Temperature: 30 deg F (minus 1 deg C) to 120 deg F (49 deg C).
Humidity: 0 to 85 percent, non-condensing.
Altitude: Less than 20,000 ft (6090 m) above sea level.
INSTALLATION OF SURGE PROTECTIVE DEVICES
A.
Install devices as integral part of the switchboards, distribution panels and panelboards.
B.
Devices shall be factory installed inside or externally mounted switchboards, distribution panels
and panelboards. The assembly shall be UL listed and labeled.
1.
2.
C.
Provide multi-pole, minimum 30A circuit breaker as a dedicated disconnect for the SPD,
unless otherwise indicated.
Provide dedicated 3 pole, 100 amp, disconnect switch in switchboards for the suppressor,
and minimum #1 AWG (42.41 mm2) wiring for phase, neutral and ground conductors to
connect SPD to load side of the main disconnect.
Externally Mounted SPD:
1.
2.
3.
4.
5.
6.
For externally mounted SPD, provide appropriate Heavy Duty (HD) disconnect switch or
circuit breaker as follows:
Application
Disconnect Size
Service Entrance Locations.
100A, 3P, HD Switch.
Power Distribution Panels.
60A, 3P, CB or HD
Switch.
Branch Circuit Panels.
30A, 3P, CB.
Install Type 1 SPD and fused disconnect switch next to each other and on top of the
switchgear or switchboards. Coordinate exact location with the breaker lifting device and
conduit entrance space on the top of the switchgear.
Install Type 2 SPD next to the power distribution panelboard on the side or bottom.
Install Type 2 SPD at the bottom of the branch circuit panelboard box unless noted
otherwise on Drawings.
Install SPD Devices at service entrance on load side, with ground lead bonded to service
entrance ground.
Install SPD Devices for panelboards and auxiliary panels with conductors or busses
between suppressor and points of attachments as short and straight as possible. Do not
exceed manufacturer’s recommended lead length. Do not bond neutral and ground.
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Minimum Wiring Size
#1 AWG (42.41 mm2), THHN
conductors. Not to exceed 6 ft.
#6 AWG (13.30 mm2), THHN
conductors. Not to exceed 3 ft.
#10 AWG (5.261 mm2), THHN
conductors. Not to exceed 12
inch.
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3.3
CONNECTIONS
A.
3.4
Tighten electrical connectors and terminals according to manufacturer’s published torquetightening values. If manufacturer’s torque values are not indicated, use those specified in
UL 486A and UL 486B.
FIELD QUALITY CONTROL
A.
Testing: Engage a qualified testing agency to perform the following field quality-control testing
and inspections:
1.
2.
3.
4.
5.
After installing surge protective devices, but before electrical circuitry has been
energized, test for compliance with requirements.
Complete startup checks according to manufacturer’s written instructions.
Perform each visual and mechanical inspection and electrical test stated in NETA ATS,
Section 7.19. Certify compliance with test parameters.
SPD device will be considered defective if it does not pass tests and inspections.
Prepare test and inspection reports.
B.
Repair or replace malfunctioning units. Retest after repairs or replacements are made.
C.
Manufacturer’s Field Service: Engage a factory-authorized service representative to inspect
field-assembled components and equipment installation, including piping and electrical
connections. Report results in writing.
1.
3.5
Verify that electrical wiring installation complies with manufacturer’s written installation
requirements.
START-UP SERVICE
A.
Do not engage or connect service entrance equipment, panelboards, control terminals and/or
data terminals to their sources until SPDs are installed and connected.
B.
Do not perform insulation resistance tests of the distribution wiring equipment with the SPD
installed. Disconnect before conducting insulation resistance tests, and reconnect immediately
after the testing is over.
3.6
DEMONSTRATION
A.
Engage a factory-authorized service representative to train Owner’s maintenance personnel to
adjust, operate, and maintain surge protective devices.
1.
Train Owner’s maintenance personnel on procedures and schedules for maintaining
suppressors for minimum four (4) hours.
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2.
3.
Review data in maintenance manuals. Refer to Division 01, “Operation and Maintenance
Data”.
Schedule training with Owner with at least seven (7) days in advance.
END OF SECTION
MCI
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