A.1.9 - AM-0002_Rev Specs_20B0007 Waterslide.pdf

Repair Torii Beach Waterslide 20AR0004 Torii Station, Okinawa, Japan

SECTION 26 41 00

LIGHTNING PROTECTION SYSTEM

11/13

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 81 (2012) Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Ground System

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 (2017) National Electrical Code

NFPA 780 (2017) Standard for the Installation of Lightning Protection Systems

UNDERWRITERS LABORATORIES (UL)

UL 467 (2013; Reprint Jun 2017) UL Standard for Safety Grounding and Bonding Equipment

UL 96 (2016a) UL Standard for Safety Lightning Protection Components

UL 96A (2016) Standard for Installation Requirements for Lightning Protection Systems

UL Electrical Constructn (2012) Electrical Construction Equipment Directory

U.S. GENERAL SERVICES ADMINISTRATION (GSA)

CID A-A-59213 (1998) Splice Connectors

1.2 RELATED REQUIREMENTS

1.2.1 Verification of Dimensions

Confirm all details of work, verify all dimensions in field, and advise Contracting Officer of any discrepancy before performing work. Obtain prior approval of Contracting Officer before making any departures from the design.

1.2.2 System Requirements

Provide a system furnished under this specification consisting of the latest UL Listed products of a manufacturer regularly engaged in production

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W912HV-20-B-0007 (AM-0002)

of lightning protection system components. Comply with NFPA 70 , NFPA 780 , and UL 96 .

1.2.3 Lightning Protection System Installers Documentation

Provide documentation showing that the installer is certified with a commercial third-party inspection company whose sole work is lightning protection, or is a UL Listed Lightning Protection Installer. In either case, the documentation must show that they have completed and passed the requirements for certification or listing, and have a minimum of 2 years documented experience installing lightning protection systems for DoD projects of similar scope and complexity.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for Contractor Quality Control approval. Submit the following in accordance with Section 01 33 00

SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Overall lightning protection system; G

Each major component; G

SD-03 Product Data

Air Terminals; G

Main and Bonding Conductors; G

Ground Rods; G

Clamp-Type Connectors; G

Lightning Protection Components; G

Hardware; G

Accessories; G

SD-06 Test Reports

Lightning Protection and Grounding System Test Plan; G

Lightning Protection and Grounding System Test; G

SD-07 Certificates

Lightning Protection System Installers Documentation; G

Component UL Listed and Labeled; G

Lightning protection system inspection certificate; G

1.4 QUALITY ASSURANCE

In each standard referred to herein, consider the advisory provisions to be

SECTION 26 41 00 Page 2 mandatory, as though the word "shall" or "must" has been substituted for "should" wherever it appears. Interpret references in these standards to "authority having jurisdiction," or words of similar meaning, to mean Contracting Officer.

1.4.1 Installation Drawings

1.4.1.1 Overall System Drawing

Submit installation shop drawing for the overall lightning protection system.

Include on the drawings the physical layout of the equipment (plan view and elevations), mounting details, relationship to other parts of the work, and wiring diagrams.

1.4.1.2 Major Components

Submit detail drawings for each major component including manufacturer's descriptive and technical literature, catalog cuts, and installation instructions.

1.4.2 Component UL Listed and Labeled

Submit proof of compliance that components are UL Listed and Labeled.

Listing alone in UL Electrical Constructn , which is the UL Electrical Construction Directory, is not acceptable evidence. In lieu of Listed and Labeled, submit written certificate from an approved, nationally recognized testing organization equipped to perform such services, stating that items have been tested and conform to requirements and testing methods of Underwriters Laboratories.

1.4.3 Lightning Protection and Grounding System Test Plan

Provide a lightning protection and grounding system test plan. Detail both the visual inspection and electrical testing of the system and components in the test plan. Identify (number) the system test points/locations along with a listing or description of the item to be tested and the type of test to be conducted. As a minimum, include a sketch of the facility and surrounding lightning protection system as part of the specific test plan for each structure. Include the requirements specified in paragraph, "Testing of Integral Lightning Protection System" in the test plan.

1.4.4 Lightning Protection System Inspection Certificate

Provide certification from a commercial third-party inspection company whose sole work is lightning protection, stating that the lightning protection system complies with NFPA 780 . Third party inspection company cannot be the system installer or the system designer. Alternatively, provide a UL Lightning Protection Inspection Master Label Certificate for each facility indicating compliance to NFPA 780 .

Inspection must cover every connection, air terminal, conductor, fastener, accessible grounding point and other components of the lightning protection system to ensure 100% system compliance. This includes witnessing the tests for the resistance measurements for ground rods with test wells, and for continuity measurements for bonds. It also includes verification of proper surge protective devices for power, data and telecommunication systems. Random sampling or partial inspection of a facility is not acceptable.

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1.5 SITE CONDITIONS

Confirm all details of work, verify all dimensions in field, and advise Contracting Officer of any discrepancy before performing work. Obtain prior approval of Contracting Officer before changing the design.

PART 2 PRODUCTS

2.1 MATERIALS

Do not use a combination of materials that forms an electrolytic couple of such nature that corrosion is accelerated in the presence of moisture unless moisture is permanently excluded from the junction of such metals.

Where unusual conditions exist which would cause corrosion of conductors, provide conductors with protective coatings, such as tin or lead, or oversize conductors. Where a mechanical hazard is involved, increase conductor size to compensate for the hazard or protect conductors. When metallic conduit or tubing is provided, electrically bond conductor to conduit or tubing at the upper and lower ends by clamp type connectors or welds (including exothermic). All lightning protection components, hardware and accessories such as bonding plates, air terminals, air terminal supports and braces, clips, connector fittings, and fasteners are to comply with the requirements of NFPA 70 , NFPA 780 and UL 96 as applicable.

2.1.1 Main and Bonding Conductors

NFPA 780 and UL 96 Class I, Class II, or Class II modified materials as applicable.

2.1.2 Copper Only

Provide copper conductors, except where aluminum conductors are required for connection to aluminum equipment. Size of conductors shall not be less than specified in NFPA 780 .

2.2 COMPONENTS

2.2.1 Air Terminals

Provide solid air terminals with a blunt tip. Tubular air terminals are not permitted. Support air terminals more than 600 mm in length by suitable brace, supported at not less than one-half the height of the terminal.

2.2.2 Ground Rods

Provide ground rods made of copper-clad steel conforming to conform to UL 467 . Provide ground rods that are not less than 20 mm in diameter and 3000 mm in length. Do not mix ground rods of copper-clad steel or solid copper on the job.

2.2.3 Connections and Terminations

Provide connectors for splicing conductors that conform to UL 96 , class as applicable. Conductor connections can be made by clamps or welds (including exothermic). Provide style and size connectors required for the installation.

SECTION 26 41 00 Page 4

2.2.4 Connector Fittings

Provide connector fittings for "end-to-end", "Tee", or "Y" splices that conform to NFPA 780 and UL 96 .

2.2.5 Lightning Protection Components

Provide bonding plates, air terminal supports, clips, and fasteners that conform to UL 96 classes as applicable.

2.3 CLAMP-TYPE CONNECTORS

Clamp connectors for splicing conductors shall conform to UL 96 and CID A-A-59213 , Class 2 non-insulated, style and size as required for the installation. Connectors shall be of corrosion-resistant material and shall afford protection against electrolysis.

PART 3 EXECUTION

3.1 INTEGRAL SYSTEM

Provide a lightning protection system that meets the requirements of NFPA 780 . Lightning protection system consists of air terminals, down conductors, ground connections, and grounding electrodes and ground ring electrode conductor. Make interconnections within side-flash distances at or below the level of the grounded metallic parts.

3.1.1 Pole-Mounted Components

3.1.1.1 Air Terminals

Provide air terminal design and support conforming to NFPA 780 . Rigidly connect terminals to, and make electrically continuous with, pole conductors by means of pressure connectors or crimped joints of T-shaped malleable metal. Provide pressure connector or crimped joint with a dowel or threaded fitting to connect ground rod conductor with air terminal.

Secure air terminals against overturning either by attachment to the object to be protected or by means of a substantial braces which are permanently and rigidly attached to the structure.

3.1.2 Down Conductors

Protect exposed down conductors from physical damage as required by NFPA 780 .

Make down conductors electrically continuous from air terminals and conductors to grounding electrodes. Course down conductors over outer extreme portions of the pole structure, with consideration given to location of ground connections and air terminals. Provide each pole structure not less than two down conductors located as widely separated as practicable, such as at diagonally opposite corners. Equally and symmetrically spaced down conductors about the perimeter of the structure.

Protect conductors where necessary, to prevent physical damage or displacement to the conductor. Protect down conductors by placing in PVC conduit for a minimum distance of 1800 2400 mm above finished grade level.

3.1.3 Ground Connections

Attach each down conductor to ground rods by welding (including exothermic), brazing, or compression. All connections to ground rods below ground level must be by exothermic weld connection or with a high

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W912HV-20-B-0007 (AM-0002)

j2ee9sag Line compression connection using a hydraulic or electric compression tool to provide the correct circumferential pressure. Accessible connections above ground level and in test wells can be accomplished by mechanical clamping.

3.1.4 Grounding Electrodes

Extend driven ground rods vertically into the existing undisturbed earth for a distance of not less 3000 mm. Set ground rods not less than 915 mm nor more than 2440 mm, from the structure foundation, and at least beyond the drip line for the facility. After the completed installation, measure the total resistance to ground using the fall-of-potential method described in IEEE 81 . Maximum allowed resistance of a driven ground rod is 25 ohms, under normally dry conditions when a ground ring electrode is not used.

Contact the Contracting Officer for direction on how to proceed when two of any three ground rods, driven not less than 3000 mm into the ground, a minimum of 3000 mm apart, and equally spaced around the perimeter, give a combined value exceeding 50 ohms immediately after having driven. For ground ring electrode, provide continuous No. 2/0 bare stranded copper cable. Lay ground ring electrode around the perimeter of the structure in a trench not less than 915 mm nor more than 2440 mm from the nearest point of the structure foundation, and at least beyond the drip line for the facility. Install ground ring electrode to a minimum depth of 765 600 mm.

Install a ground ring electrode in earth undisturbed by excavation, not earth fill, and do not locate beneath roof overhang, or wholly under paved areas or roadways where rainfall cannot penetrate to keep soil moist in the vicinity of the cable.

3.2 RESTORATION

Where sod has been removed, place sod as soon as possible after completing the backfilling. Restore paved areas, to original condition and other areas disturbed by trenching, storing of dirt, cable laying, and other work. Overfill to accommodate for settling. Include necessary topsoil, fertilizing, liming, seeding, sodding, sprigging or mulching in any restoration. Maintain disturbed surfaces and replacements until final acceptance.

3.3 FIELD QUALITY CONTROL

3.3.1 Lightning Protection and Grounding System Test

Test the lightning protection and grounding system to ensure continuity is not in excess of 1 ohm and that resistance to ground is not in excess of 25 ohms. Provide documentation for the measured values at each test point.

Test the ground rod for resistance to ground before making connections to the rod. Tie the grounding system together and test for resistance to ground. Make resistance measurements in dry weather, not earlier than 48 hours after rainfall. Include in the written report: locations of test points, measured values for continuity and ground resistances, and soil conditions at the time that measurements were made. Submit results of each test to the Contracting Officer.

3.3.2 Lightning Protection System Inspection

Make visual inspections to verify that there are no loose connections which may result in high resistance joints, and that conductors and system components are securely fastened to their mounting surfaces and are protected against accidental mechanical displacement.

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W912HV-20-B-0007 (AM-0002)

j2ee9sag Line

3.3.3 System Ratings

Submit certificates showing compliance with UL requirements for "Master Label" ratings. Lightning-protection systems conforming to the installation requirements of UL 96A shall be qualified for a UL "Master Label" rating. Installed lightning-protection system shall be inspected and approved by a certified UL inspector.

3.4 INSPECTION

The lightning protection system will be inspected by the Contracting Officer to determine conformance with the requirements of this specification. No part of the system shall be concealed until so authorized by the Contracting Officer.

-- End of Section --

SECTION 26 41 00 Page 7

G eo te ch ni ca l I nv es tig at io n Re po rt

To rii S ta tio n Be ac h

Fi gu re

: S oi l B or in g

Lo ca tio n

(B ea ch L ife gu ar d

To w er

Water slider

Attachment 31 23 00.00 20-A Page 1 (AM-0002)

Hole No. B – 5

DRILLING LOG DIVISION INSTALLATION SHEET 1 OF 1 SHEET

10.SIZE AND TYPE OF BIT 66mm Dia. Single Core Tube Bit & Split Spoon sampler 1.PROJECT OKH 00605 Beach Cabins, OKH 00606 Storage & Parking Area, OKH 00607 Beach Lifeguard Tower, Torii Station, Okinawa, Japan 11.DATUM FOR ELEVATION SHOWN (TBM or MSL) Tokyo datum

2.LOCATION (Coordinates or Station) Shown on the Map 12.MANUFACTURE S DESIGNATION OF DRILL YBM Co. Ltd. Model=YBM-05

3.DRILLING AGENCY

Shindo Soil Investigation Co. Ltd

13.TOTAL NO. OF OVERBURDEN SAMPLES

TAKEN

DISTURBED

10 Samples

UNDISTURBED

None

4.HOLE NO. (As shown on drawing title and file number) B – 5 14.TOTAL NUMBER CORE BOXES None 5.NAME OF DRILLER OHAMA, Yoshiki 15.ELEVATION GROUND WATER None 6.DERECTION OF HOLE VERTICAL INCLINED DEG. FROM VERT. 16.DATE HOLE STARTED 31 May. 2016 COMPLETED 31 May. 2016 7.THICKNESS OF OVERBURDEN 0.00m(Filled Material) + 10.45m(Natural Soil) 17.ELEVATION TOP OF HOLE EL = 1.82m 8.DEPTH DRILLED INTO ROCK 0.00m 18.TOTAL CORE RECOVERY FOR BORING

9.TOTAL DEPTH OF HOLE 10.45m 19.SIGNATURE OF INSPECTOR Kazuaki Shindo

STANDARD PENETRATION TEST EL.

(m) 1.82

DEPTH

(m) 0.00

LEGEND CLASSIFICATION OF MATERIALS

(Description)

Blow Count of

S.P.T.

DEPTH &

Blow Count /10cm

N Value & Percentage of limestone content 10 20 30 40 50

1.00

0% 20% 40% 60% 80% 100%

1.15m 31 10, 9, 12

1.45m

2.00 2.15m

13 3, 3, 7 2.45m

-0.88 2.70

Sand (SP) w/ Gravel Light Yellow / Medium Moisture, None Plasticity

Alluvium that accumulate along shore line. Principally consist of limy grain intermingled gravel occasionally.

Sand; grain size varies widely, but medium grain are conspicuous at upper portion, and coarse grain are conspicuous at deeper portion.

Intermingled gravel is consisting of sub angular fragment of coral, shell around 20mm sizes.

Relative Density; Dense to Medium Dense Layer

3.00 3.15m

7 3, 2, 2 3.45m

4.00 4.15m

3/34cm 1/17,1/8,1/9 4.49m

-2.98 4.80

Silty Sandy Gravel (GM) Grayish White to Milky White / Medium Moisture, None Plasticity

Alluvium that accumulate along shore line. Principally consists of silt and limy sand intermingled with angular fragments of coral limestone around 15mm (Max.

25mm).

Relative Density; Loose to Very Loose Layer

5.00 5.15m

50/20cm 2, 48 5.35m

6.00

20%

6.15m 20 4, 8, 8

6.45m

7.00 7.00m 50/2cm 50/2

7.02m

8.00

25%

8.15m 21 9, 5, 7

8.45m

9.00 9.15m

18 6, 6, 6 9.45m

10.00 10.15m

-8.15 10.45

Decomposed Coral Limestone [Silty Sandy Gravel (GM)]

Grayish White to Milky White Medium Moisture, None Plasticity

Sedimentary layer of former coral debris. Principally consists of silt and limy sand intermingled with angular fragments of limestone.

Sand; grain size varies widely, but medium to coarse grain are conspicuous.

Gravel; Sizes generally around 15mm. Varies between 15mm to 30mm.

Confirmed percentages of limestone content at each depth are shown by bar graph.

Relative Density:

Varies between Loose to Very Dense Layer

6 2, 2, 2 10.45m

11.00

12.00

Bottom of Hole

13.00

14.00

15.00

16.00

ENG FORM 1836 PREVIOUS EDITIONS MAY BE USED PROJECT: OKH 00605 Beach Cabins, OKH 00606 Storage & Parking Area, OKH 00607 Beach Lifeguard Tower, Torii Station, Okinawa, Japan

HOLE No.

B – 5

GL-1.40m (EL=0.42m)

B-5:0.50m – 1.50m Disturbed Sample

B-5:9.00m – 10.00m Disturbed Sample

B-5:3.00m – 4.00m Disturbed Sample

B-5:1.50m – 2.50m Disturbed Sample

Attachment 31 23 00.00 20-A Page 2 (AM-0002)