13100_-_LIGHTING_PROTECTION.doc

DANNELLY FC&CC HANGAR

MARCH 5, 2017

SITE ADAPTATION

Copyright 2006 by The American Institute of Architects (AIA)

Exclusively published and distributed by Architectural Computer Services, Inc. (ARCOM) for the AIA

SECTION 13100 - LIGHTNING PROTECTION

Revise this Section by deleting and inserting text to meet Project-specific requirements.

This Section uses the term "Architect." Change this term to match that used to identify the design professional as defined in the General and Supplementary Conditions.

Verify that Section titles referenced in this Section are correct for this Project's Specifications; Section titles may have changed.

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

Retain or delete this article in all Sections of Project Manual.

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section includes lightning protection for structures.

1.3 SUBMITTALS

First two paragraphs below are defined in Division 1 Section "Submittal Procedures" as "Action Submittals."

A. Product Data: For each type of product indicated.

B. Shop Drawings: For air terminals and mounting accessories.

1. Layout of the lightning protection system, along with details of the components to be used in the installation.

2. Include indications for use of raceway, data on how concealment requirements will be met, and calculations required by NFPA 780 for bonding of grounded and isolated metal bodies.

Remaining paragraphs are defined in Division 1 Section "Submittal Procedures" as "Informational Submittals."

Coordinate first paragraph below with qualification requirements in Division 1 Section "Quality Requirements" and as supplemented in "Quality Assurance" Article.

C. Qualification Data: For qualified Installer and manufacturer. Include data on listing or certification by UL.

Retain first paragraph below for air terminals mounted on single-ply membrane roofing.

D. Certification, signed by Contractor, that roof adhesive is approved by manufacturer of roofing material.

E. Field quality-control reports.

F. Comply with recommendations in NFPA 780, Annex D, "Inspection and Maintenance of Lightning Protection Systems," for maintenance of the lightning protection system.

G. Other Informational Submittals: Plans showing dimensioned as-built locations of grounding features, including the following:

1. Ground rods.

2. Ground loop conductor.

1.4 QUALITY ASSURANCE

A. Installer Qualifications: Certified by UL or LPI as a Master Installer/Designer, trained and approved for installation of units required for this Project.

B. System Certificate:

Retain one of three subparagraphs below. See "Lightning Protection Standards and System Certifications" Article in the Evaluations.

1. UL Master Label.

2. LPI System Certificate.

Retain subparagraph below if Project includes addition to existing UL Master Label building.

3. UL Master Label Recertification.

C. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 780, "Definitions" Article.

1.5 COORDINATION

A. Coordinate installation of lightning protection with installation of other building systems and components, including electrical wiring, supporting structures and building materials, metal bodies requiring bonding to lightning protection components, and building finishes.

B. Coordinate installation of air terminals attached to roof systems with roofing manufacturer and Installer.

C. Flashings of through-roof assemblies shall comply with roofing manufacturers' specifications.

PART 2 - PRODUCTS

2.1 LIGHTNING PROTECTION SYSTEM COMPONENTS

See Editing Instruction No. 2 in the Evaluations for discussion of whether the requirement of complying with NFPA 780 should be retained. Specified standards stipulate minimum size requirements for components, depending on selected metal and class of building. To require components larger than minimum size, add requirements here.

A. Comply with UL 96 and NFPA 780.

Retain material classification in NFPA 780; see Table 2 in the Evaluations.

B. Roof-Mounted Air Terminals: NFPA 780, Class I, copper unless otherwise indicated.

See Editing Instruction No. 1 in the Evaluations for cautions about naming manufacturers. Retain one of first two subparagraphs and list of manufacturers below. See Division 1 Section "Product Requirements."

1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

Retain option in first subparagraph below if manufacturer's name and model number are indicated in schedules or plans on Drawings; delete option and insert manufacturer's name and model number if not included on Drawings.

2. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on Drawings or comparable product by one of the following:

a. East Coast Lightning Equipment Inc.

b. ERICO International Corporation.

c. Harger.

d. Heary Bros. Lightning Protection Co. Inc.

e. Independent Protection Co.

f. Preferred Lightning Protection.

g. Robbins Lightning, Inc.

h. Thompson Lightning Protection, Inc.

3. Air Terminals More than 24 Inches (600 mm) Long will be supported with a brace attached to the terminal at not less than half the height of the terminal.

Retain subparagraph below for single-membrane roof system.

4. Single-Membrane, Roof-Mounted Air Terminals: Designed specifically for single-membrane roof system materials. Comply with requirements in Division 7 roofing Sections.

C. Main and Bonding Conductors: Aluminum.

Retain first paragraph below for structures exceeding 60 feet (3.6 m) in height. Revise if Project conditions require use of an above-ground, ground-level, potential equalization conductor.

D. Ground Loop Conductor: Bare Copper.

Copper-clad, steel ground rods are the most common grounding electrodes. See Editing Instruction No. 4 in the Evaluations for assistance in selecting ground rod material. UL 94 and NFPA 780 allow the use of ground rods 1/2 inch (12.7 mm) in diameter and 96 inches (2400 mm) long. Sectional rods are used when electrodes longer than 10 feet (3 m) are required.

E. Ground Rods: Copper-clad steel, sectional type; 3/4 inch (19 mm) in diameter by 10 feet (3 m) long.

F. Heavy-Duty, Stack-Mounted, Lightning Protection Components: Stainless steel.

PART 3 - EXECUTION

3.1 INSTALLATION

See Editing Instruction No. 2 in the Evaluations for discussion of whether the requirement of complying with NFPA 780 should be retained. Specified standards stipulate minimum size requirements for components, depending on selected metal and class of building. To require components larger than minimum size, add requirements here.

A. Install lightning protection components and systems according to UL 96A and NFPA 780.

B. Install conductors with direct paths from air terminals to ground connections. Avoid sharp bends. No conductor shall for a bend with an angle of less than 90 degrees, nor shall it have a bend radius of less than 8 inches.

C. Conceal the following conductors:

Retain one or more of four subparagraphs below depending on degree of concealment desired for lightning protection components. If deleting all four subparagraphs, there will be no restrictions on exposed conductors.

1. System conductors.

2. Down conductors.

3. Interior conductors.

4. Conductors within normal view of exterior locations at grade within 200 feet (60 m) of building.

Retain one of first two paragraphs below. Exothermic-welded connections are considered more permanent than crimped or bolted connections.

D. Cable Connections: Use crimped or bolted connections for all conductor splices and connections between conductors and other components. Use exothermic-welded connections in underground portions of the system.

E. Cable Connections: Use exothermic-welded connections for all conductor splices and connections between conductors and other components.

1. Exception: In single-ply membrane roofing, exothermic-welded connections may be used only below the roof level.

Retain first paragraph below for single-ply membrane roofing.

F. Air Terminals on Single-Ply Membrane Roofing: Comply with roofing membrane and adhesive manufacturer's written instructions.

Delete first two paragraphs below if NFPA 780 compliance is specified; retain if specifying bonding requirements that exceed minimum UL 96A requirements. See Editing Instruction No. 3 in the Evaluations. Coordinate with Drawings for counterpoise requirements if any.

G. Bond extremities of vertical metal bodies exceeding 60 feet (18 m) in length to lightning protection components.

H. Ground Loop: Install ground-level, potential equalization conductor and extend around the perimeter of structure.

1. Bury ground ring not less than 24 inches (600 mm) from building foundation.

2. Bond ground terminals to the ground loop.

3. Bond grounded building systems to the ground loop conductor within 12 feet (3.6 m) of grade level.

Retain paragraph below for structures exceeding 60 feet (18 m) in height unless the structure is an electrically continuous steel frame. NFPA 70 lists other instances where paragraph below is not required.

I. Bond lightning protection components with intermediate-level interconnection loop conductors to grounded metal bodies of building at 60-foot (18-m) intervals.

J. Surge Protection Devices (SPD): SPD shall be installed at all power service entrances. The requirements for surge protection systems installed for the electrical, communications (including but not limited to; CATV, alarms, and data), and antenna systems. Surge protection devices shall be installed in accordance with NFPA 780 and NFPA 70.

K. Protection for Airfield Lighting Circuits: The airfield lighting counterpoise system shall be a separate and unique lightning protection system suited for use with current-driven airfield lighting circuits. The airfield lighting protection system shall comply with NFPA 780 in its entirety.

3.2 CORROSION PROTECTION

See Evaluations for discussion of corrosion protection issues.

A. Do not combine materials that can form an electrolytic couple that will accelerate corrosion in the presence of moisture unless moisture is permanently excluded from junction of such materials.

B. Use conductors with protective coatings where conditions cause deterioration or corrosion of conductors.

3.3 FIELD QUALITY CONTROL

A. Notify Architect at least 48 hours in advance of inspection before concealing lightning protection components.

Revise this article to specify inspections for UL Master Label or LPI System Certificate. See Evaluations.

Retain one of two paragraphs below.

B. UL Inspection: Meet requirements to obtain a UL Master Label for system.

C. LPI System Inspection: Meet requirements to obtain an LPI System Certificate.

END OF SECTION 13100

LIGHTNING PROTECTION

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