SECTION 16289-1
Transient voltage suppression / surge protection device
AC Power distribution and equipment
PART 1 GENERAL
1.01 SUMMARY
This section covers required specifications for Transient Voltage Surge Suppression (TVSS), also referred to as Surge Protection Devices (SPDs), for protection of electrical equipment and installations from the damaging effects of lightning and switching transient induced surges. This section covers SPDs for use on AC Service Entrance, Power Distribution Circuits, and Point of Use / Electronic Equipment applications. Specifications for SPDs to protect communication and data lines are covered under Section 16289-2.
1.02 SECTION INCLUDES
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A. |
Performance Specifications |
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B. |
Approved Manufacturers and Model Numbers |
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C. |
Functional and Operational Guidelines |
1.03 RELATED SECTIONS
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A. |
Section 16289-2 – Communication and Data Signal Transient Voltage Suppression |
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B. |
Section 13100 – Lightning Protection |
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C. |
Section 16493 – Surge Arrestors |
1.04 REFERENCE
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A. |
IEC 1024-1: 1990/ENV 61 024-1:1995/DIN V ENV 61 024-1/VDE V 0185 part 100: 1996-08. Protection of structures against lightning - Part 1: general principles |
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B. |
NEC 2002, The National Electrical Code Article 285 |
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C. |
EN50022: 1977/DIN EN 50 022: 1978-05. Low voltage switchgear and control gear for industrial use; mounting rails for fixing terminal blocks |
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D. |
IEEE C62.41.1-2002. IEEE Guide on the Surge Environment in Low Voltage (1000V and less) AC Power Circuits. |
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E. |
IEEE C62.41.2-2002. IEEE Recommended Practice on Characterization of Surges in Low-Voltage (1000V and Less) AC Power Circuits. |
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F. |
IEC 529: 1989/EN 60 529: 1991/DIN VDE 0470-1: 1992-11. Type of protection through housing (IP Code). |
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G. |
DIN VDE 0675-6: 1989-11, draft. Surge arresters for use in ac supply systems with rated voltages ranging from 100 to 1000V. |
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H. |
IEC 61643-1. Surge Protective Devices Connected to Low Voltage Power Distribution Systems – Performance Requirements and Testing Methods |
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I. |
IEC 61643-12. Surge Protective Devices Connected to Low Voltage Power Distribution Systems – Selection and Application Principles |
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J. |
NEMA LS-1-1992. Low Voltage Surge Protection Devices |
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K. |
UL 1449, 2nd Edition. Transient Voltage Surge Suppressors |
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L. |
ISO 9001:2000. International Quality Management System |
1.05 SUBMITTALS
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A. |
Product data shall include 8/20µs and 10/350µs rated surge capacities, relevant IEEE and IEC specifications, installation instructions, and operating characteristics. |
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B. |
The product submittals shall include: 1. UL 1449, 2nd edition documentation 2. UL 1283, electromagnetic interference filter documentation (where appropriate) 3. Dimensional drawing of each SPD type 4. Circuit diagram of SPDs internal components 5. UL 1449 Surge Voltage Rating (SVR - 6kV / 3kA combination waveform) 6. Maximum 10/350µs lightning test current impulse capability (only for service entrance and outdoor field mount applications) 7. Copy of manufacturer’s ISO 9001:2000 Quality Registration Certificate |
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C. |
Manufacturer’s statement of warranty. |
1.06 WARRANTY
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A. |
SPDs shall be warranted against failure due to results of lightning or switching transients for a period of 10 years for service entrance protection, 5 years for all other areas. |
PART 2 PRODUCTS
2.01 GENERAL
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A. |
Transient Voltage Suppression (surge protection device) equipment shall be supplied by an ISO 9001:2000 certified company in the business of manufacturing SPDs for a period of greater than 20 years. |
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B. |
All wiring, hardware, and connection means shall be in compliance with the National Electrical Code and/or applicable local codes. |
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C. |
Transient Voltage Suppression (surge protection device) equipment shall be supplied by Phoenix Contact Inc, Harrisburg, PA or proven equal. |
2.02 MOUNTING
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A. |
All SPD components shall have integral mounting brackets to attach to 35mm DIN rail conforming to DIN EN50022. The SPDs may be pre-mounted on a rail or electrical enclosure. The DIN rail and enclosure will be electrically grounded. |
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B. |
The SPDs shall be mounted as close as possible to the equipment or service being protected. |
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C. |
Mounting guidelines will be followed as indicated in installation instruction provided by manufacturer. |
2.03 WIRE CONNECTIONS
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A. |
Wires shall be attached to the SPD by means of a cable-clamping terminal block activated by a screw. Connections shall be gas-tight, and the terminal block shall be fabricated of non-ferrous, non-corrosive materials. |
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B. |
All wiring points and plug connections shall be "touch safe" with no live voltages that can make contact with a misplaced finger in accordance with IEC 529. |
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C. |
Both Service Entrance and Sub-Distribution protection devices shall be wired on the load side of the service or panel distribution box. |
2.04 EQUIPMENT – SERVICE ENTRANCE SPDs:
Protection Against Lightning and Switching Transients
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A. |
The service entrance SPDs shall have protection in the L-N (GND) mode only as neutral to ground bonding is required at the service entrance by NEC 2002. Therefore, no separate N-GND protection is necessary. |
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B. |
The SPD technology shall consist of coordinated two-stage protection to provide protection against IEEE C62.41.1-2002 defined Scenario II direct strike lightning events and Category C switching transients. The two-stage protection concept includes current limiting arc gap lightning arrestor components and MOV TVSS components defined below. |
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C. |
The lightning arrestor components shall provide the following: 1. The lightning arrester components shall have a protection level of 900 volts for systems with nominal voltage < 230VAC L-GND and 1.5kV for systems with nominal voltage > 230VAC L-GND. 2. The lightning arrester components shall have a maximum rated operating voltage of at least 330 VAC from line to ground 3. The lightning arrester components shall be tested to withstand at least 50 kA of lightning test current of a 10/350ms waveform described by IEC 1024/Application Guide A and by IEEE C62.41.2 Appendix A. 4. The lightning arrester components shall be able to quench 50 kA of follow (short circuit) current without properly sized over-current devices opening. 5. The lightning arrester components shall have a response time of 1 µs or faster. 6. The lightning arrester components shall have an operating temperature range of -40 oC to +85 oC. 7. The lightning arrester components shall be wired in series with a fuse capable of withstanding at least 100kA 8/20ms surge current and which has a 200 kAIC rating. This fuse shall be specifically designed for use with surge protection devices. |
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D. |
The TVSS components shall provide the following: 1. The TVSS component shall be designed to withstand a one time surge of up to a 40 kA test current of a (8/20)ms waveform according to IEC 1024 Application Guide A and ANSI/IEEE C62.41.1 Category C Area. 2. The TVSS components shall have a SPDT contact rated for 250 VAC, 1 amp used for remote indication/visual indicator of circuit integrity. 3. The TVSS components shall have a rating of IP20 according to IEC 529. 4. The TVSS components shall be modular with field replacement capability without the removal of any wires nor shall it interrupt the power to the protected. Bases shall have the ability to be coded to accept only the correct voltage plug. 5. The TVSS components shall have integral label holder to mark each terminal block 6. The TVSS components shall have an operating temperature range of at least -25°C to +75°C. |
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E. |
The SPD shall be UL listed or recognized to UL 1449, 2nd edition. |
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F. |
The SPD shall have the following UL 1449 measured SVRs in the Line to Neutral (Ground) mode: 1 1.2kV for 480Y/277 systems 2 800V for 208Y/120 systems 3 1.8kV for 480 DELTA systems |
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G. |
The SPD shall have the following Measured Limiting Voltage while discharging 50kA of surge current 1. < 1.5kV for 480Y/277 systems 2. < 900V for 208Y/120 systems 3. < 2.0kV for 480 DELTA systems |
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H. |
OPTIONAL: The SPD shall have visual indication of TVSS component and fuse failure. |
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I. |
Acceptable Part Numbers for External Enclosure Mount Systems Include: 1 For 480/277 VAC systems incorporating front-panel TVSS and fuse status indication: Phoenix Contact model "SYS N4/I FT+CT-VAL 480/277”, part number 5602201 2 For 208/120 VAC systems incorporating front-panel TVSS and fuse status indication: Phoenix Contact model "SYS N4/I FT+CT-VAL 208/120”, part number 5602202 3 For 240/120 VAC Split Single Phase systems incorporating front-panel TVSS and fuse status indication: Phoenix Contact model “SYS N4/I FT+CT-VAL 240/120”, part number 5603416 4 For 480/277 VAC systems: Phoenix Contact model “SYS N4 FT+CT-VAL 480/277”, part number 5602744 5 For 208/120 VAC systems: Phoenix Contact model “SYS N4 FT+CT-VAL 208/120-240”, part number 5602745 6 For 240/120 VAC Split Single Phase systems: Phoenix Contact model “SYS N4 FT+CT-VAL 240/120”, part number 5602856 7 For 480/277 VAC systems incorporating front-panel TVSS and fuse status indication in a corrosive resistant enclosure (NEMA 4X, 316 Stainless Steel): Phoenix Contact model “SYS N4X/I FT+CT-VAL 480/277”, part number 5602746. 8 For 208/120 VAC systems incorporating front-panel TVSS and fuse status indication in a corrosive resistant enclosure (NEMA 4X, 316 Stainless Steel): Phoenix Contact model “SYS N4X/I FT+CT-VAL 208/120”, part number 5602747. 9 For 240/120 VAC Split Single Phase systems incorporating front-panel TVSS and fuse status indication in a corrosive resistant enclosure (NEMA 4X, 316 Stainless Steel): Phoenix Contact model “SYS N4X/I FT+CT-VAL 240/120”, part number 5603317. 10 For 480/277 VAC systems in a corrosive resistant enclosure (NEMA 4X, 316 Stainless Steel): Phoenix Contact model “SYS N4X FT+CT-VAL 480/277”, part number 5602732 11 For 208/120 VAC systems in a corrosive resistant enclosure (NEMA 4X, 316 Stainless Steel): Phoenix Contact model “SYS N4X FT+CT-VAL 208/120-240”, part number 5602733 12 For 240/120 VAC systems in a corrosive resistant enclosure (NEMA 4X, 316 Stainless Steel): Phoenix Contact model “SYS N4X FT+CT-VAL 240/120”, part number 5603167 |
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J. |
Acceptable part numbers for internal DIN rail mount assemblies include: 1. For 480/277 VAC systems as a rail assembly kit (mounts in user supplied enclosure): Phoenix Contact model “SYS FT+CT-VAL 480/277”, part number 5602794 2. For 208/120 VAC systems as a rail assembly kit (mounts in user supplied enclosure): Phoenix Contact model “SYS FT+CT-VAL 208/120”, part number 5603415 |
2.05 EQUIPMENT – DISTRIBUTION CIRCUIT AND PANEL SPDs
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A. |
The distribution circuit and panel SPDs shall have protection in the L-N and N-GND modes |
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B. |
The SPDs shall provide the following: 1. The SPD component shall be designed to withstand a one time surge of up to a 40 kA test current of a (8/20) ms waveform according to IEC 1024 Application Guide A and ANSI/IEEE C62.41.1 Category C Area. 2. The SPD components shall have a SPDT contact rated for 250 VAC, 1 amp used for remote indication/visual indicator of circuit integrity. 3. The SPD components shall have a rating of IP20 according to IEC 529. 4. The SPD components shall be modular with field replacement capability without the removal of any wires nor shall it interrupt the power to the protected. Bases shall have the ability to be coded to accept only the correct voltage plug. 5. The SPD components shall have integral label holder to mark each terminal block 6. The SPD components shall have an operating temperature range of at least -25°C to +75°C. |
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C. |
The SPD shall be UL listed or recognized to UL 1449, 2nd edition. |
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D. |
The SPD shall have the following UL 1449 measured SVRs in the Line to Neutral mode: 1. 1.2kV for 480Y/277 systems 2. 700V for 208Y/120 systems 3. 700V for 240/120 Split Single Phase systems |
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E. |
The SPD shall have a response time < 25µs. |
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F. |
The SPD shall have a leakage current to ground of <1µA. |
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G. |
Acceptable Part Numbers for External Enclosure Mount Systems Include: Phoenix Contact “SYSTEMTRAB Enclosure series”. |
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H. |
Acceptable Part Numbers for internal DIN rail mount assembly include: 1. For 480/277 VAC systems: Phoenix Contact “VAL-MS 320/3+1/FM-UD”, part number 2856689 2. For 208/120 VAC systems: Phoenix Contact “VAL-MS 120/3+1/FM-UD”, part number 2856692 |
2.06 EQUIPMENT – POINT OF USE / ELECTRONIC EQUIPMENT SPDs
For Protection of Single Phase Equipment
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A. |
SPDs for single phase equipment shall be designed to withstand up to a 10kA test current of a 8/20µS waveform according to IEC 1024 Application Guide A and IEEE C62.41.1-2002 Category C area. |
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B. |
The SPD technology for single phase equipment protection shall be hybrid – MOV / Gas Discharge Tube. |
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C. |
SPDs for single phase equipment shall have visual status indication and a dry contact rated for at least 250 VAC, 1 amp for remote status indication. |
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D. |
SPDs for single phase equipment shall provide a method of landing both input and output wires using a feed-through terminal block. Maximum operating current through the block shall be no more than 20 amps. |
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E. |
Operating temperature range shall be at least -25°C to +75°C |
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F. |
SPDs for single phase equipment shall be modular with field replacement capability without the removal of any wires nor shall in interrupt the power to be protected. Bases shall have the ability to be coded to accept only the correct voltage plug. |
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G. |
The SPD shall be UL Listed or Recognized to UL 1449, 2nd edition |
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H. |
The SPD shall have the following UL 1449 measured SVR: 1. For 120VAC single phase: L-N = 500V, N-GND = 900V 2. For 24VAC (DC) single phase: L-N = 150, N-GND = 600V |
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I. |
The SPDs shall have a leakage current to ground of < 1µA |
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J. |
The SPDs shall have integral mounting brackets to attach to 35mm DIN rail conforming to DIN EN50022. The mounting bracket of the SPD shall make ground connection to the DIN rail; therefore, minimizing ground impedance connections. |
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K. |
Acceptable Part Numbers include Phoenix Contact models: 1. 24 VAC (DC): PT 2-PE/S-24AC… (ST and BE) 2. 60 VAC: PT 2-PE/S-60AC… (ST and BE) 3. 120 VAC: PT 2-PE/S-120AC… (ST and BE) 4. 230 VAC: PT 2-PE/S-230AC… (ST and BE) |
For Protection of Single Phase Equipment with additional EMI/RFI noise filtering (sine wave tracking)
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A. |
SPDs for single phase equipment shall be designed to withstand up to a 10kA test current of a 8/20µS waveform according to IEC 1024 Application Guide A and IEEE C62.41.1-2002 Category C area. |
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B. |
The SPD technology for single phase equipment protection with EMI / RFI noise filtering shall be sine wave tracking type with low pass filter circuit and MOV surge protection circuit. |
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C. |
SPDs for single phase equipment shall have visual status indication of MOV status on the input and output circuits and a dry contact rated for at least 250 VAC, 1 amp for remote status indication. |
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D. |
SPDs for single phase equipment shall provide a method of landing both input and output wires with a maximum operating current through the SPD of no more than 20 amps. |
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E. |
Operating temperature range shall be at least -40°C to +85°C |
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F. |
The SPD shall be UL Listed or Recognized to UL 1449, 2nd edition and UL 1283. |
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G. |
The SPD shall have the following UL 1449 measured SVR: L-N = 400V, N-GND = 400V |
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H. |
The SPDs shall have integral mounting brackets to attach to 35mm DIN rail conforming to DIN EN50022. |
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I. |
The SPD shall be packaged in a metallic housing to shield the components from RFI therefore increasing the filter circuit performance. |
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J. |
The SPD shall have an attenuation of greater than -40dB @ 100 kHz as determined by a standard 50-ohm insertion test. |
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K. |
The SPD shall exhibit sine wave tracking characteristics as described by the following IEEE C62.41 defined ringwave tests: 1. Category A Ringwave: L-N = 100V, N-GND = 390VAC 2. Category B Ringwave: L-N = 195 V, N-GND = 400VAC |
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L. |
Acceptable Part Numbers include Phoenix Contact Model: 1. SFP 1-20/120AC, Part Number 2856702 |
For Protection of Three Phase Equipment
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A. |
The Three Phase Equipment SPDs shall have protection in the L-N and N-GND modes |
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B. |
The SPD components shall provide the following: 1. The SPD component shall be designed to withstand a one time surge of up to a 40 kA test current of a 8/20 ms waveform according to IEC 1024 Application Guide A and ANSI/IEEE C62.41.1 Category C Area. 2. The SPD components shall have a SPDT contact rated for 250 VAC, 1 amp used for remote indication/visual indicator of circuit integrity. 3. The SPD components shall have a rating of IP20 according to IEC 529. 4. The SPD components shall be modular with field replacement capability without the removal of any wires nor shall it interrupt the power to the protected. Bases shall have the ability to be coded to accept only the correct voltage plug. 5. The SPD components shall have integral label holder to mark each terminal block 6. The SPD components shall have an operating temperature range of at least -25°C to +75°C. |
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C. |
The SPD shall be UL listed or recognized to UL 1449, 2nd edition. |
|
D. |
The SPD shall have the following UL 1449 measured SVRs in the Line to Neutral mode: 1. 1.2kV for 480Y/277 systems 2. 700V for 208Y/120 systems 3. 700V for 240/120 Split Single Phase systems |
|
E. |
The SPD shall have a response time < 25µs. |
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F. |
The SPD shall have a leakage current to ground of <1µA. |
|
G. |
Acceptable Part Numbers for internal DIN rail mount assembly include: 1. For 480/277 VAC systems: Phoenix Contact “VAL-MS 320/3+1/FM-UD”, part number 2856689 2. For 208/120 VAC systems: Phoenix Contact “VAL-MS 120/3+1/FM-UD”, part number 2856692 |
2.07 EQUIPMENT – ACCESSORIES
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A.
|
Additional automated test equipment shall be provided for each job to perform verification testing on the modular SPDs. This testing equipment shall have the following capabilities: 1. Bar code scanner and touch pad key entry for modular plug identification 2. LCD display for diagnostics and test results display 3. Reporting output capability with RS232 interface |
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B. |
Acceptable part numbers for automated test equipment include: 1. Phoenix Contact Model “CHECKMASTER”.
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PART 3 EXECUTION
3.01 INSTALLATION OF SURGE PROTECTION DEVICES
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A.
|
Install service entrance SPDs on the load side of the main service disconnect, with ground lead bonded to service entrance N-GND bond. |
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B. |
Install all SPD devices with conductors or buses between SPD and points of attachment as short and straight as possible. |
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C. |
Comply with manufacturer’s written recommendation for conductor and circuit-breaker size for connecting SPDs to distribution system. Match circuit breaker size to conductor size. Coordinate with drawings. |
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D. |
Installers shall follow manufacturer’s installation instructions. |
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E. |
Installers of SPDs shall be knowledgeable, and if required, certified, in all applicable electrical practices, standards, codes and wiring techniques as they pertain to installing SPDs |
3.02 FIELD QUALITY CONTROL
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A. |
Engage a factory-authorized service representative to inspect equipment installation, including connections. 1. Verify that electrical wiring installation complies with manufacturer’s written installation requirements. |
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B. |
Perform periodic verification testing on modular SPDs with automated test equipment. Replace any failed modules at this time. |