17040.pdf

FBOP TECHNICAL DESIGN GUIDELINES ISSUE DATE: JANUARY 20, 2009

SENSITIVE - LOU

GROUNDING AND SURGE PROTECTION 17040-1

SECTION 17040 - GROUNDING AND SURGE PROTECTION

PART 1 - GENERAL

1.1 SUMMARY

A. This section covers all grounding and surge protection systems as shown on the drawings or as required to support the systems defined in these specifications.

The work under this section consists of furnishing materials and equipment, performing labor and services necessary for the installation of the grounding and surge protection systems required for the security electronics, communications, and fire alarm system.

B. Related Work Specified Elsewhere: Refer to all other Division 17 specification sections and drawings, and to the specifications and drawings under the General Construction Contract to ascertain the extent of work included.

1.2 SUBMITTALS

A. Since the Division 17 systems must be reviewed by the Contracting Officer as a system, no individual, specific submittal shall be made for this section.

Submittals shall be packaged in groups and shall be made in accordance with the General Provisions (Section 17000) of these specifications.

1.3 REFERENCE SPECIFICATIONS, MATERIALS, AND CODES:

A. The following specifications and standards, except as hereinafter modified, are incorporated herein by reference and form a part of this specification to the extent indicated by the references thereto. Except where a specific date is given, the issue in effect (including amendments, addenda, revisions, supplements, and errata) on the date of Invitation for Bids shall be applicable. In text such specifications and standards are referred to by basis designation only.

1. National Fire Protection Association (NFPA) Publications

a. No. 70 National Electrical Code (NEC) Including but not limited to Article 800-30

GROUNDING AND SURGE PROTECTION 17040-2

b. No. 780 Lightning Protection Code

2. Federal Information Processing Standards Publication 94 (FIPS 94) "Guideline on Electrical Power for ADP Installations."

3. EIA/TIA-607 Commercial Building Grounding and Bonding Requirements for Telecommunications.

4. IEEE Standard 142 "Grounding of Industrial and Commercial Power Systems".

5. IEEE Standard 1100 "Power and Grounding Sensitive Electronic Equipment".

1.4 SYSTEM DESCRIPTION

A. Signal Ground System:

1. In each equipment room in which Division 17 systems are installed, a signal ground system shall be furnished and installed to affect a ground reference level for all Division 17 systems installed within the space.

Equipment racks and equipment shall be bonded to the common signal ground system having the maximum impedance as specified herein.

Minimum bonding conductor size shall be as specified herein. Conductor size shall be increased as required to meet the minimum impedance levels specified.

2. A Signal Reference Ground (SRG) system shall be provided as required in Section 16060 - Grounding and Bonding and as shown on the electrical * drawings. The SRG shall include an SRG bus bar in each electronics equipment room. All signal grounds, signal and data line surge protector grounds, outside cable sheaths, equipment cabinet ground busses, and telephone board ground busses shall be connected to the electronics equipment room SRG bus bar.

3. Signal ground systems shall be established such that the maximum ground impedance from any point on the signal ground bus to the grounding electrode, shall be 0.5 ohms or less. Refer to Division 16 for the impedance requirements from the ground rod to the earth.

GROUNDING AND SURGE PROTECTION 17040-3

B. Surge Protection:

1. Surge protection devices shall be installed on all signal wiring including spare conductors entering a building from the exterior.

2. Division 16 shall provide a panelboard transient voltage surge suppressers (TVSS) on each 120VAC panelboard feeding Division 17 equipment.

Panelboard TVSS devices shall meet the requirements of the Division 16 specifications and shall be located as shown on the electrical and security electronics and communications systems drawings.

3. Where Division 17 equipment in an electronics equipment room is not located in the same building as the power panelboard, a branch circuit surge protector shall be installed on each power circuit entering the electronics equipment.

4. Primary protection shall be provided when outside telephone cable plant enters the building. TVSS and or secondary protection shall be provided for all PABX lines that serve stations outside of the building local to the

PABX.

PART 2 - PRODUCTS

2.1

GROUND SYSTEM

A. All ground wire shall be in accordance with Underwriter Laboratories (UL) and NEC requirements, as shown on the drawings, and as hereinafter specified.

B. Conductors:

1. Single, insulated, stranded No. 2/0 annealed copper conductor unless otherwise specified.

C. Connectors:

1. Solid bronze, compression type, suitable for use intended.

GROUNDING AND SURGE PROTECTION 17040-4

2.2 SURGE PROTECTION

A. Data, Signal, and Low Voltage Power Circuits:

1. Shall incorporate Silicon Avalanche Diode devices as the primary protection means.

2. Shall have a surge life of at least 10 operations for 1,000 Amp, 8 X 20 microsecond wave.

3. Shall have a initial clamping voltage suitable to the application and shall not exceed 200% of the peak signal voltage rating of the device.

4. Shall have a peak clamping voltage suitable to the application and shall not exceed 300% of the peak signal voltage rating of the device.

5. Select as required for particular data frequency and signal level characteristics of the application.

6. Shall be UL listed as a surge protection device.

B. Branch Power Circuits:

1. Shall incorporate Silicon Avalanche Diode devices as the primary protection means.

2. Shall have secondary protection devices consisting of MOV or silicon avalanche technology.

3. Shall have an indicator to indicate the operability of the primary and secondary protection devices.

4. Shall have a surge life of at least 200 operations for 3,000 Amps, 8 X 20 microsecond wave for 120V single phase application.

5. Shall have a maximum single surge capacity of at least 32,000 Amps line to neutral and 8,000 Amps line to ground for 8 X 20 microsecond wave.

6. Shall be UL listed as a surge protection device.

GROUNDING AND SURGE PROTECTION 17040-5

C. Video Coaxial Lines:

1. Shall incorporate Silicon Avalanche Diode devices as the primary protection means.

2. Shall have a surge life of at least 10 operations for 1,000 Amp, 8X20 microsecond wave.

3. Shall be specifically designed for CCTV coaxial video applications.

4. Shall have an initial clamping voltage suitable to the application and shall not exceed 200% of the peak signal voltage rating of the device.

5. Shall have a peak clamping voltage suitable to the application and shall not exceed 30V.

6. Select as required for the particular data frequency and signal level characteristics of the application.

7. Shall be UL listed as a surge protection device.

D. MATV Lines:

1. Shall have a surge life of at least 600 operations for 500 Amps peak, 8 X 20 microsecond wave.

2. Shall have an insertion loss of less than 0.5 dB at 500 MHz.

3. Shall have a peak clamping voltage suitable to the application and shall not exceed 100V (DC clamping point).

4. Select as required for the particular data frequency and signal level characteristics of the application.

5. Shall be UL listed as a surge protection device.

E. Primary Telephone Station Line Protectors: shall incorporate Gas tube devices as the primary protection means with the following characteristics:

1. Signal Line Voltage - 265 to 425 VDC

GROUNDING AND SURGE PROTECTION 17040-6

2. Shall have heat coils for fused over-current circuitry. The fuse shall satisfy the NEC fuse requirement.

3. Shall be UL497 compliant.

4. Shall be compatible with industry standard 5 pin building entrance protector panel.

5. Shall be AT&T 4B1E-W or approved equal.

F. Primary Telephone Station Line Protector Panels:

1. Input Termination - Stub to satisfy NEC fuse requirements.

2. Output Termination - 66 Type.

3. Pair Count - As required.

4. Compatible with telephone station line protectors.

5. UL listed for primary protection.

G. Secondary Station Line Protectors: shall incorporate Silicon Avalanche Diode devices as the primary protection means with the following characteristics:

1. Signal Line Voltage - Up to 170 V

2. Peak Clamping Voltage - 211 V

3. Response Time - 5 nanoseconds or less

4. Peak Pulse Power Dissipation- 10 Joules.

5. Shall be UL497A compliant.

6. Shall be 66M block compatible.

7. Shall have automatically resetting sneak current protection.

GROUNDING AND SURGE PROTECTION 17040-7

PART 3 - EXECUTION

3.1 GROUNDING

A. All equipment shall be grounded in accordance with the NEC, these specifications and drawings, and the equipment manufacturer's recommendations.

B. All AC power supporting Division 17 equipment shall be isolated ground type receptacles and circuits. Where power strips are required, isolated ground type shall be used.

C. Division 17 equipment grounds, excluding surge protection grounds, shall be connected to the isolated ground bus bar in the equipment room. Surge protection grounds shall be connected directly to the Signal Reference Ground System.

D. Each equipment cabinet shall be bonded directly to the Signal Reference Ground System shown.

E. Cable shields shall be grounded at one end only. Ground shields for field devices only at the equipment room end. Grounds for shields for conductors interconnecting processing equipment or other high end equipment such as amplifiers should only be grounded on one end, unless required otherwise by the equipment manufacturer.

F. Ground conductors shall be continuous from connector to connector with no splices.

3.2 SURGE PROTECTION

A. All metallic data, communications, video, and sensor lines entering or leaving a building shall be protected with surge protection devices.

B. Grounding of protective devices shall be in accordance with the manufacturer's recommendations and as described in these specifications and drawings.

C. All signal line protective devices shall be located at the terminal point nearest the cable point of entry into the building.

D. Verify power panelboards for Division 17 equipment have panelboard protectors provided by Division 16.

GROUNDING AND SURGE PROTECTION 17040-8

3.3 COMPLETION

A. General: Upon completion of the work, remove excess debris, materials, equipment, apparatus, tools and the like and leave the premises clean, neat and orderly.

B. Testing: The completed system shall be tested by the Contractor prior to the acceptance test.

END OF SECTION 17040