26_41_00_Lightning_Protection_Systems.pdf

Cannon Air Force Base Lightning Protection April 3, 2013 27 SOCES/CEP 26 41 00 Page 1 of 3

ROOFING IDIQ

SECTION 26 41 00

LIGHTNING PROTECTION SYSTEMS

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Air terminals and interconnecting conductors.

B. Grounding and bonding for lightning protection.

1.02 REFERENCES

Lightning Protection Institute:

LPI 175 – Standard of Installation

LPI 176 – Lightning Protection System Material and Components Standard

LPI 177 – Inspection Guide for LPI Certified Systems

National Fire Protection Association:

NFPA 70 – National Electrical Code

NFPA 70B – Recommended Practice for Electrical Equipment Maintenance

NFPA 77 – Recommended Practice on Static Electricity

NFPA 780 – Standard for the Installation of Lightning Protection Systems.

Underwriters Laboratories Inc.:

UL 96 – Lightning Protection Components.

UL 96A – Installation Requirements for Lightning Protection Systems.

UL 467 – Grounding and Bonding Equipment

Institute of Electrical and Electronics Engineers:

IEEE 142, Recommended Practice for Grounding Industrial and Commercial Power Systems (Green Book)

MIL-HDBK-419 Grounding, Bonding, and Shielding for Electronic Equipment and Facilities, Volume 1 and 2.

Air Force Instruction (AFI) 32-1065 Grounding Systems (Current Addition)

Unified Facilities Criteria (UFC) 3-575-01 Lightning and Static Electricity Protection Systems (Current Addition)

1.03 SYSTEM DESCRIPTION

A. Lightning Protection System: Conductor system protecting building, consisting of air terminals on roofs, roof mounted mechanical equipment, bonding of structure and other metal objects; grounding electrodes;

and interconnecting conductors.

B. Lightning Protection System: Overhead Ground Wire

1.04 SUBMITTALS

Submit under provisions of Section 01 33 00.

The Contractor shall submit to the Contracting Officer (CO) for approval a complete set of shop drawings to include all material and equipment proposed for installation Sealed by a registered Lightning Protection engineer. The individual’s name, signature, and professional engineer number shall be included on all final

27 SOCES/CEP 26 41 00 Page 2 of 3 design documents. All Lighting Protection system designs must be reviewed and stamped by a Lighting Protection engineer.

Shop Drawings: Indicate layout of air terminals, grounding electrodes, and bonding connections to structure and other metal objects. Include terminal, electrode, and conductor sizes, and connection and termination details.

Product Data: Provide dimensions and materials of each component, and include indication of listing in accordance with UL 96.

Manufacturer's Certificate: Certify that Products meet or exceed specified requirements.

Submit certificate of compliance from Underwriter's Laboratories indicating approval of lightning protection systems.

Submit qualification of installer per PART 1, Paragraph 1.08.

1.05 PROJECT AS-BUILT SUBMITTALS

A. Section 01 33 00 – SD-11 Closeout Submittals: Submittals for project closeout.

1. Record actual locations of air terminals, grounding electrodes, bonding connections, and routing of system conductors in project record documents.

1.06 QUALITY ASSURANCE

A. Perform Work in accordance with NFPA 780.

B. Perform Work in accordance with UL 96A and provide Master Label.

C. Perform Work in accordance with LPI 175.

D. Maintain one copy of each document on site.

1.07 QUALIFICATIONS

A. Manufacturer: Company specializing in lightning protection equipment with minimum three years documented experience.

B. Installer: Authorized installer of manufacturer with minimum three years documented experience.

1.08 REGULATORY REQUIREMENTS

A. Product Listing: UL 96 and LPI 176.

1.09 FIELD MEASUREMENTS

A. Verify that field measurements are as indicated on shop drawings.

1.10 COORDINATION

A. Coordinate work with roofing and exterior and interior finish installations.

PART 2 PRODUCTS

2.01 COMPONENTS

A. Air Terminals: Copper, solid , with adhesive bases for single ply roof installations.

B. Grounding Rods: Solid copper-clad steel 20 feet in length and not less than ¾-inch diameter rod.

C. Down Conductor: Not less than #2 AWG.

D. Earth Electrode System Conductors: Not less than #1/0 AWG bare Copper.

E. Connectors and Splicers: Bronze.

PART 3 EXECUTION

3.01 INSTALLATION

27 SOCES/CEP 26 41 00 Page 3 of 3

A. Master Label service listed installer shall install Lightning Protection System.

B. Connect conductors using exothermic welding process. Protect adjacent construction elements and finishes from damage.

C. Bond exterior metal bodies on building to lightning protection system.

D. Where separate grounding systems are installed such system shall be bonded below grade to any other independently installed exterior grounding system.

E. All underground connections to grounding electrodes shall have handholes for accessibility. Strength of handholes and their frames shall be vehicle load rated at all locations and conform to the requirements of

IEEE C2.

3.02 FIELD QUALITY CONTROL

A. Section 01 35 26 Governmental Safety Requirements - Quality Assurance: Field inspection, testing, and adjusting.

B. Upon completion of the installation, the contractor shall furnish the “Master Label issued by Underwriter Laboratories, Inc.” for the system. Master Label service is available for complete Lightning Protection System Installations that have been installed using only UL listed or labeled components in accordance with UL Master Label Installation Requirements.

END OF SECTION