SECTION 16030

TRANSIENT VOLTAGE SURGE SUPPRESSION SYSTEM

PART 1 - GENERAL

1.1	RELATED DOCUMENTS

A.	Drawings and general provisions of Contract, including General and Supplementary Conditions, Special Conditions, and Division 1 Specification sections, apply to work specified in this section.

1.2	SUMMARY

A.	These specifications describe requirements for an integrated UL Listed TVSS System. Note that particular care must be taken to install the system as described in the Execution Section of this specification to ensure system performance.

B.	Provide surge suppression equipment at the following locations:

1.	Service Entrance

2.	Sub Panels - As shown on drawings

1.3	DESIGN REQUIREMENTS

A.	The TVSS system shall be designed, manufactured, tested and installed in compliance with:

1.	C62.33-1982 (Reaff. 1994) IEEE Standard Test Specifications for Varistor Surge- Protective Devices (ANSI recognized)

2.	C62.41-1991 IEEE Recommended Practice on Surge Voltages in Low-Voltage AC Power Circuits (ANSI recognized), Table 4, C3 and Table 8, High Exposure 10 x 1000.

3.	C62.45-1992 IEEE Guide on Surge Testing for Equipment Connected to Low-Voltage AC Power Circuits (ANSI recognized)

4.	142-1982 IEEE Recommended Practice for Grounding of Industrial and Commercial Power Systems (IEEE Green Book) (ANSI recognized)

5.	UL 1449 - Standard for Safety, Transient Voltage Surge Suppressors – 2nd Edition

6.	UL 1283 Electromagnetic Interference Filters

7.	NFPA 70 National Electric Code

8.	NFPA 75 Standard for the Protection of Electronic Computer/Data Producing Equipment

9.	NFPA 780 Lightning Protection Standard

10.	Federal Information Processing Standards 94 (FIPS PUB 94)

11.	National Electrical Manufacturer's Association LS-1, 1992 (& LS-2 draft).

B.	All systems provided per this section shall be from the same manufacturer. The system shall not utilize encapsulated components. The TVSS manufacturer shall have been manufacturing TVSS for a minimum of 5 years.

C.	Acceptable manufacturers, providing the equipment supplied meets the requirements listed herein:

1.	LEA International

2.	Liebert

3.	Current Technology

1.4	SUBMITTALS

A.	Submittals shall include documentation of:

1.	UL 1449 Listing and UL 1449 clamping voltage rating.

2.	Certification of surge survivability of a minimum of 1000 sequential

3.	Confirmation of L-G, L-N & N-G mode where specified (7-mode of protection).

4.	Description of internal circuitry and components.

5.	Dimensions and weights.

6.	Warranty Statement.

7.	Recommended connection wiring diagram.

8.	Certification that manufacturer has been manufacturing TVSS systems for a minimum of 5 years.

B.	Submittals shall include a copy of these specifications with each section marked with either "C" for comply or "D" for deviation. A written explanation shall be provided for each deviation for the system to be considered for acceptance. Any deviation may result in the system being determined "Not Acceptable".

1.5	APPLICATION

A.	Each Main Service Entrance Panel, and each Sub-Panel as listed below or marked with "TVSS" or "SS" on the drawings shall be provided TVSS. All panels served by outdoor conductors shall be considered Service Entrance.

PART 2 - PRODUCTS

2.1	PERFORMANCE

A.	The TVSS systems shall provide the following features and performance as a minimum, without exception:

Main	Distribution	Sub-Panel
Protection Modes	L-N, N-G	L-N, L-G, N-G	L-N, N-G, L-G
Surge Capacity Per Phase	200,000 Amps	75,000 Amps	75,000 Amps
Sequential Survivability of 10,000 amp,

8 x 20 Surge	1000 minimum

Cat C3	1000 minimum

Cat B3	1000 minimum

Cat B3
UL 1449 Rating

120/208 Sys.

277/480 Sys.

500, L-N

500, N-G

1000, L-N

1000, N-G

500, L-N

500, N-G

500, L-G

1000, L-N

1000, N-G

1000, L-G

500, L-N

500, N-G

500, L-G

1000, L-N

1000, N-G

1000, L-G

EMI/RFI

Attenuation	Required	Required	Required
Replaceable Modules	Required	Required	Not Required
Internal Fused Disconnect	Required	Required

Not Required
Status LEDs Normally On, Alarm Off	Required per

Phase & Module	Required per Phase & Module	Required per Phase
Termination	Field Wired	Field Wired	Manufacturer Leads

2.2	PROTECTIVE CIRCUITRY

A.	The TVSS shall be designed utilizing multiple MOVs arranged in a balanced circuit where each component is equidistant to the input and output leads. Each protective component shall be individually fused. Components/modules shall utilize bolted connections or PCB board solder connections. Replaceable module units shall be installed in a NEMA 12 (or NEMA-4X stainless steel outdoors) enclosure and contain individual replaceable surge protection modules such that upon failure only the module need be replaced.

B.	The use of current limiting fuses or devices that reduce the repetitive surge current handling ability of the TVSS is not acceptable.

2.3	MODES OF PROTECTION

A.	When a mode of protection is specified, the protective mode shall be specifically included. Thus Line to Neutral to Ground is not considered acceptable where Line to Ground is specified.

PART 3 - EXECUTION

3.1	TERMINATION POINT

A.	TVSS shall be installed to provide termination as close as possible to the load side of the main disconnect. When an internal fused disconnect is not provided (for Sub-Panel applications), the TVSS unit shall be connected to a breaker disconnect as close to the main lugs/main breaker as possible.

3.2	INSTALLATION

A.	Input connections shall be made for each phase, the neutral and safety ground with #8 AWG conductors. An additional #2 conductor shall be connected between the TVSS surge ground terminal and earth ground. Non-ferrous conduit shall be used. Conduit shall be separated by a minimum of 4" from other conduits and conductors to minimize potential reintroduction of induced transients. Conductors shall be run as straight and short as possible.

B.	When factory supplied leads are provided (for Sub-Panel applications), input connections shall be made for each phase, neutral, and ground. The leads shall be run as straight and short as possible and trimmed to length. The TVSS shall be connected via a 3/4" knockout to a breaker/disconnect in the protected panel.

3.3	INSPECTION/TRAINING

A.	Manufacturer's representative shall inspect the TVSS installation and provide dated documentation certifying the installation has been inspected and is installed properly. The manufacturers representative shall provide instructional training on system operation to the Owner.

3.4	WARRANTY

A.	Five years from substantial completion with unlimited replacement during warranty period.

END OF SECTION