Download specifications for Omega HARMONY (word document)

SECTION 02825 – STEEL MESH FENCE SYSTEMS AND GATES

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

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

1.2 RELATED WORK ( Sections to consult)

Section 02200 – Landscaping
Section 02500 – Paving and surface
Section 03000 – Concrete work
Section 04200 – Masonry
Division 16 Sections for electrical service and connections for motor operators, controls, limit switches, other powered devices and for system disconnect switches.

1.3 SUMMARY

A. This Section includes the following:

1. Polyester powder coated, steel fencing panel, post and accessory system.
2. Gates and hardware.
3. Gate operator.
4. Grounding and bonding.

1.4 REFERENCES

American Society for Testing and Materials (ASTM), Fifth edition.

ASTM-A82: Cold Drawn steel wire , Plain, for Concrete Reinforcement.
ASTM-A185: Steel Welded Wire Fabric, Plain, for Concrete Reinforcement.
A1008 Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy (HSLA) and HSLA with Improved Formability
A787-01 Standard Specification for Electric-Resistance-Welded Metallic-Coated Carbon Steel Mechanical Tubing
A513-00 Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing
A 446 (1987) Standard Specification for Steel Sheet, Zinc Coated (Galvanized) by the Hot-Dip Process, Structural (physical) Quality.
A500 (1993) Standard Specification for Cold formed welded and seamless carbon steel structural tubing in round shapes.
A 641 (1989) Standard Specification for Zinc-Coated (Galvanized) Carbon Steel Wire.
B 6 (1987) Standard Specification for Zinc
B 117 (1990) Standard Test Method of Salt Spray (Fog) Testing.
B 221 (1995) Standard Specification for Aluminum and aluminum-alloy extruded bars, rods, wire, shapes and tubes.
D 2247 (1988) Standard Practice for Testing Water Resistance of Coatings in 100% Relative Humidity.
D 2794 (1990) Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact).
D 3359 (1990) Standard Test Methods for Measuring Adhesion by Tape.
F 900 (1984) Standard Specification for industrial and commercial swing gates.
F 934 (1989) Standard Specification for Standard Colors for Polymer-Coated Chain Link Fence Materials.
F 1184 (1988) Standard Specification for industrial and commercial horizontal slide gates.
F 1234 (1989) Standard Specification for protection coatings on steel framework for fences.

1.5 SUBMITTALS

A. Product Data: Material descriptions, construction details, dimensions of individual components and profiles, and finishes for the following:

1. Fence and gate posts, rails, and fittings.
2. Gates and hardware.
3. Gate operators, including operating instructions.
4. Motors: Show nameplate data, ratings, characteristics, and mounting arrangements.

1. Gate Operator: Show locations and details for installing operator components, switches, and controls. Indicate motor size, electrical characteristics, drive arrangement, mounting, and grounding provisions.
2. Wiring Diagrams: Power and control wiring [and communication features] [and access control features]. Differentiate between manufacturer-installed and field-installed wiring and between components provided by gate operator manufacturer and those provided by others.

C. Samples for Initial Selection: Manufacturer's color charts shown on its internet site.

D. Samples for Verification: Request a color chip from the manufacturer.

E. Qualification Data: For firms and persons specified in "Quality Assurance" article to demonstrate their capabilities and experience. Include lists of completed projects with project names and addresses, names and addresses of architects and owners, and other information specified.

F. Maintenance Data: Request the maintenance manual for the gate operator.

1.6 SUBSTITUTE PRODUCTS

To enable all tenders to be judged equitably, they shall be based on the specified products in this document and shown on the drawings:

A. The proposal for any substitute products must be attached to their tender separately, identifying the substitute product by its trade name along with any savings it may represent.

B. Following the opening of the tender, only those substitutes proposed by the lowest bidder of the specified products will be considered.

C. All substitute approval requests shall be accompanied by manufacturing drawings and specifications, and they meet all specifications for design , size gauge of metal parts and fabrication.

D. Each substitute sample must be presented to the owner/consultant within seven days following the opening of tenders. After this time , the bidder will be required to supply the original specified product.

E. The owner/consultant reserves the right to grant or deny approval for proposed substitutions without prejudice to this rights and his decision shall be final.

The above conditions apply to this section independently of any other clauses on the subject found in this document.

1.7 QUALITY ASSURANCE

A. Installer Qualifications: an experienced installer who has completed fences and gates similar in material, design, and extent to those indicated for this Project and whose work has resulted in construction with a record of successful in-service performance.

B. Source Limitations for Fences and Gates: obtain each color, grade, finish, type, and variety of components for fences and gates from one source with resources to provide fences and gates of consistent quality in appearance and physical properties.

C. Electrical Components, Devices, and Accessories: listed and labelled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

D. UL Standard: Provide gate operators that comply with UL 325.

E. Emergency Access Requirements: comply with requirements of authorities having jurisdiction for automatic gate operators serving as a required means of access.

1.8 PROJECT CONDITIONS

A. Existing Utilities: do not interrupt utilities serving facilities occupied by Owner or others unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated:

1. Notify Architect not less than [two] <Insert number> days in advance of proposed utility interruptions.

2. Do not proceed with utility interruptions without Architect's written permission.

B. Field Measurements: verify layout information for fences and gates shown on drawings in relation to property survey and existing structures. Verify dimensions by field measurements.

PART 2 - THE PRODUCT

2.1 MANUFACTURERS

OMEGA II FENCE SYSTEMS ™
A division of Metaltech - Omega inc.
1735, St-Elzear west
Laval (Quebec), Canada
H7L 3N6

Tel: 800-836-6342 / 450-686-9600
Fax: 450-681-5318
email: information@omegatwo.com
web site: www.omegafence.com

2.2 COATINGS

A. Zinc coating :

1. The wire meshes is coated with 150 g/m2 ( 0.5 on./ft.2) zinc in conformity with ASTM A 641 (1989) Standard Specification for Zinc-Coated (Galvanized) Carbon Steel Wire.

2. The fence posts, the swing gate frame and posts are zinc coated (galvalume process) – 0.27kg/m2 ( 0.90 oz/ft.2) as per ASTM A787-01 Standard Specification for Electric-Resistance-Welded Metallic-Coated Carbon Steel Mechanical Tubing.

B. The polyester surface coating color shall be [ ( standard black or any optional color like dark green, textured taupe brown , see Omega Web site - or [ color chart as per a RAL code]. Polyester coating to be minimum 4 mils applied by an electrostatic method. Coating shall cover all surfaces of the wire and post sections. Coating shall be capable of withstanding the following tests:

1. Mechanical adhesion test as per ASTMD 3359 (1990) - Method B.

2. Shock resistance tests as per ASTM D 2794 (1990).

3. Salt spray testing with a min. of 1,000 hrs without red rust appearance, as per ASTM B 117 (1990).

4. Humidity resistance in a weather meter chamber as per ASTM D 2247 (1988).

2.3 MATERIALS

2.3.1 MODEL “HARMONY” FENCE AND ACCESSORIES

A. Height shall be: 1289 mm ( 4 ft.), X 1889 mm ( 6 ft.)

B. Model “HARMONY” – Steel Mesh Fence Panels: The wire mesh fence panels measuring 2356 mm (92 ¾ “) wide are welded by resistance as per ASTM-A185 using 6 gauge - 4.9 mm (0.192") pre-galvanized steel wire for the vertical wire, welded at each crossing on 6.0 mm (0.236’’) pre-galvanized horizontal steel wire to form a rectangle of 50 mm x 200 mm (2 in. x 7.875 in.). The cold rolled wire have a minimum tensile strength of 515 Mpa ( 75,000 psi ) and a 985 Kg (2 172 lbs) break strength. Applied onto wire 150g/m2 (0.5 ounce per square foot) of zinc coating conforming to the ASTM A 641 (1989) Class 1 . The two last horizontal wires at the top edge of the panel are welded with a curved shape and spaced at 50 mm (2”) between wire. The lower curved wire start at 3.5’’ from the last horizontal wire each end of the panel and go up to 5.875 in the middle of the fence. All the vertical wires on the top of the panel are bended thereby creating an arrow shape and shall exceed 90 mm (3.5’’) from the last curved horizontal wire. The vertical wire on the bottom of panel are cut flush. A 4 mil polyester powder coating is applied on the mesh panel after fabrication. Panels shall have a number of folds according to the table below depending on the respective height of the panel:

Mesh Panels

Post Selection Performance table

Minimum requirements for the 2” x2” posts are : gauge 16 for 4’H and gauge 11 for 6’H. The length of the post is a minimum of 591 mm (23.3 in.) more than the actual height of the fence for installation in the ground.

D. 50mm or 75 mm ( 2” or 3” ) Universal post bracket kits
The attachment “Universal bracket kit” includes 2.6 mm (12 gage) steel collar and wire retaining plate 6.3 mm by 25 mm (1/4 inch by 1 inch), nut , washer and carriage bolt 8.0 mm by 32 mm (5/16 inch by 1-1/4 inches) - all galvanized steel. For 90 degree turn, use the same bracket. For different angles more than 15 degres, use the “ Universal angle bracket kits ”.

Universal Bracket kit requirement

E. The Special Panel Fitting - SPF enables a panel to be fastened to any vertical or horizontal surface, such as a steel, concrete beam or a wood post. All hot dip galvanized.

When wanting to fasten the panel to something other than a post, [use one or more] of the (3) different models described below:

1) The SPF-W kit, for mounting on a vertical surface, consists of an L-shaped slotted plate, which accommodates a 45mm ( 1 ¾”) vertical adjustment, and a retaining plate that hold two vertical wires when bolted together.

2) The SPF-C kit, for horizontal surfaces, uses the same “L” shaped slotted plate and (2) wire retaining plates.

3) The SPF-P kit connects two panels together

4) The 90°attachment bracket in 1200mm (4’ )et de 1800mm (6’), made of pre-galvanized steel 16 gage minimum are designed to attach the panels on masonry wall or other types. 

F. Post caps: made of aluminum for the 50 mm X 50 mm (2 in. X 2 in.) square post and galvanized steel for other square posts. PVC plastic for the profile post.

G. Tensioning clips for profile post : made of PVC plastic.

H. Polyester powder coating: (see article 2.2 B).

I. Concrete: (See article 3.5).

2.3.2 SINGLE/DOUBLE SWING GATES

A. Gate frames: Omega swing gates shall be made in accordance with ASTM F900 (1984) using galvanized square steel tube 50 mm X 50 mm (2 in. X 2 in.) vertical and horizontal parts shall be welded at intersections to create a rigid frame.

B. Mesh section: (see article 2.3.1B).

C. Gate hardware: in conformity with ASTM F900 (1984) for hinges, latch, drop rods, shall be hot-dip galvanized steel, and sized to assure proper gate operation. Non moving parts shall be powder coated.

D. Hinge: structurally designed to support all gates without deformation during opening and closing.

E. Latch: Clamp-on gravity system that is self latching.

F. Gate Keeper for double leafed models: Gate keeper consist of mechanical device with gravity-lock system that fasten each gate leaf when in full open position.

G. Double gates hardware: Consists of … 1) One drop bar to secure in closed position one of the gate leaves complete, with stop pipe to engage the center drop rod. 2) Self-locking device with padlock eyes as an integral part of latch.

H. [OPTIONAL Keyed lock-box: LOCINOX [single-lever] or [double-lever] model.

I. Gate Posts: Gate posts shall be produced per ASTM A787, G90 zinc coating (galvalume process) – 0.27kg/m2 ( 0.90 oz/ft.2) steel square sections in conformity to ASTM B-6 (1987). The steel shall meet the requirements of structural quality steel with a 45,000 psi (310 MPa) tensile strength. Posts are to include cap and SPF-W kit for adjacent panel mounting.
The size of the posts shall be as shown below for the various gate dimensions:

he length of the posts are minimum 840 mm (33 in.) more than the actual height of the fence for installation in the ground.

For gate leaf sizes 9450mm (31 feet) to 12190mm (40 feet), weld 2 top track/rails together forming a dual enclosed track. Provide 2 truck assemblies for each track for each gate leaf, total 4 truck assemblies. Bottom rail shall consist of 50mm X 100mm (2 in. X 4 in.) Aluminum member weighing 2.54 kg/m (1.71 lb/ft).

Gate leaf single opening

For gate leaf sizes 12500mm (41 ft.) to 15240mm (50 ft.), fabricate 610mm (24 in.) wide rigid box frame truss. Truss shall consist of dual side frames, constructed similar to standard single leaf gates, separated by square cross members and diagonal truss rod bridging. Dual side frames shall each contain top track/rail to provide support for truss from both sides. Provide 4 trucks for each track, total 8 for each gate leaf. Weld steel plate between top of support posts to maintain truck assemblies in alignment with tracks.

B. Mesh section: (see article 2.3.1B).

C. Bracing: Provide diagonal adjustable length truss rods, of 9.5mm (3/8 in.) galvanized steel, in each panel of gate frames.

D. Top Track/Rail: Enclosed, combination one-piece track and rail, aluminum extrusion with weight of 5.54 kg/m (3.72 lb/ft). Track to withstand reaction load of. 907 kg (2,000 lb) Track does not receive polymer coating.

E. Truck Assembly: Swivel type, zinc die cast, with 4 sealed lubricant ball bearing rollers, 50mm (2 in.) in diameter by 14mm (9/16 in.)in width, and 2 side rolling wheels to ensure truck alignment in track. Mount trucks on post brackets using 22mm (7/8 in.) diameter ball bolts with 13mm (1/2 in.) shank. Design truck assembly to withstand same reaction load as track Truck Assembly: Swivel type, zinc die cast, with 4 sealed lubricant ball bearing rollers, 50mm (2 in.) in diameter by 14mm (9/16 in.) in width, and 2 side rolling wheels to ensure truck alignment in track. Mount trucks on post brackets using 22mm (7/8 in.) diameter ball bolts with 13mm (1/2 in.) shank. Design truck assembly to withstand same reaction load as track.

F. Gate Hangers, Latches, Brackets, Guide Assemblies, and Stops: Malleable iron or steel, galvanized after fabrication. Provide positive latch with provisions for padlocking. These fittings do not receive Polymer coating.

G. Bottom Guide Wheel Assemblies: Each assembly shall consist of two 100mm (4 in.) diameter rubber wheels, straddling bottom horizontal gate rail, allowing adjustment to maintain gate frame plumb and in proper alignment. Attach one assembly to each guide post. These fittings do not receive polymer coating.

H. Gate Posts: Gate posts shall be 76.2mm (3 in.) hot-dipped galvanized steel square sections weighing 10.8 kg/m (7.04 lb/ft.) Pipe shall have a minimum 1.8 ounce/ft zinc coating meeting ASTM F1234. The steel shall meet requirements of ASTM A500, Grade B with a minimum yield strength of 40,000 psi. Provide 1 latch post and 2 support posts for single slide gate and 4 support posts for double slide gates.

I. Polyester powder coating : (see article 2.2 B).

J. Concrete: (See article 3.5).

2.4 GATE OPERATOR
(This section describes typical gate operator systems. For detailed precisions and supplementary information, please contact gate operator vendors.)

A. General: Provide factory-assembled automatic gate operation system designed for gate size, type, weight, construction, use, traffic-flow patterns, and operation frequency. Provide operation system for gate specified, of size and capacity and with features, characteristics, and accessories suitable for Project conditions, recommended [and provided]by gate manufacturer complete with electric motor and factory-prewired motor controls, remote-control stations, control devices, power disconnect switch, obstruction detection device, lockable weatherproof enclosures protecting controls and all operating parts, and accessories required for proper operation. Provide enclosures with corrosion-resistant-protective and decorative finish and two keys per lock. Include wiring from motor controls to motor. Coordinate operator wiring requirements and electrical characteristics with building electrical system.

1. Provide operator designed so motor may be removed without disturbing limit-switch adjustment and without affecting auxiliary emergency operator.

2. Provide operator with UL [approval] [-approved components].

3. Provide electronic components with built-in troubleshooting diagnostic feature.

4. Provide unit designed and wired for both right-hand/left-hand opening, permitting universal installation.

B. Comply with NFPA 70.

C. Control Equipment: Comply with NEMA ICS 1, NEMA ICS 2, and NEMA ICS 6, with NFPA 70, Class 2 control circuit, maximum 24-V ac or dc.

D. Electrohydraulic Operation: Provide unit designed for [gate] [surface] [concrete base/pad] [pedestal] [post] <Insert mounting> mounting; consisting of electric motor, pump, hydraulic actuator to suit gate type, valves, [heater to maintain constant temperature,] and [cold-weather] hydraulic fluid[; with hydraulic locking in both directions].

E. Electromechanical Operation: Provide unit designed for [gate] [surface] [concrete base/pad] [pedestal] [post] mounting; consisting of electric motor and factory-prewired motor controls, starter, speed control device, chain-drive assembly, [brake,] clutch or torque limiter, and as follows:

1. Enclosed worm gear reducer, roller chain drive.
2. Enclosed worm gear and chain and sprocket reducers, roller chain drive.
3. V-belt and [worm gear] [chain and sprocket] reducers, roller chain drive.
4. Enclosed worm gear reducer, wheel and rail drive.

F. Operation Cycle Requirements: Design gate operator to operate for not less than the following duty and cycles per hour. One cycle equals one gate opening plus one gate closing.

1. Medium Duty: 10 cycles per hour.
2. Heavy Duty: 25 cycles per hour.
3. Peak Duty: 20 cycles per hour at peak periods.
4. < Insert requirements for duty and cycles per hour or day.>

G. Gate Operation Speed: [Minimum 45 fpm (0.229 m/s)] [Minimum 60 fpm (0.305 m/s)] <Insert speed>.

H. Electric Motors: High-starting torque, [reversible,] [single-direction,] continuous-duty, insulated electric motors, complying with NEMA MG 1, sized to start and operate size and weight of gate considering Project's service conditions without exceeding nameplate ratings or considering service factor.

1. Service Factor: According to NEMA MG 1, unless otherwise indicated.

2. Enclosure: [Totally enclosed, nonventilated or fan-cooled motors, fitted with plugged drain] <Insert another enclosure>.

3. Thermal Protection: Internal [manual] [automatic] reset.

4. Motors Smaller Than 1/2 hp: [Single phase] [Polyphase], 60 Hz. [Motor horsepower as recommended by operator manufacturer] [Motor horsepower as indicated on Drawings] <Insert motor horsepower>.

5. Motors 1/2 hp and Larger: Polyphase, 60 Hz. [Motor horsepower as recommended by operator manufacturer] [Motor horsepower as indicated on Drawings] <Insert motor horsepower>.

I. Remote Controls: Electric controls separated from gate and motor and drive mechanism, with [NEMA ICS 6, Type 1] [NEMA ICS 6, Type 4] <Insert another type of enclosure> enclosure for [surface] [recessed or flush] [concrete base/pad] [pedestal] [post] <Insert mounting> mounting, and with space for additional optional equipment. Provide the following remote-control device(s):

1. Control Station: Keyed, two-position, switch-operated control station located remotely from gate, with on and off functions. Provide two keys per station.

2. Control Station: Keyed, three-position, switch-operated control station with open and close functions and spring return to off position [with stop button]. Provide two keys per station.

3. Control Station: Momentary-contact, single-button-operated control station with open and close functions.

4. Control Station: Momentary-contact, three-button-operated control station with open, close, and stop positions, [and with key switch to lock out open and close buttons. Provide two keys per station].

5. Card Reader: Functions only when authorized card is presented. Magnetically coded, single-code system activated by coded card [and permitting four different access time periods]. Provide insertion-reader-type, face-lighted unit fully visible at night.

6. Card Reader: Functions only when authorized card is presented. Easily programmable, multiple-code capability permitting validating or voiding of individual cards [and permitting four different access time periods]. Provide face-lighted unit fully visible at night.

a. Reader Type: [Touch plate] [Swipe] [Insertion] [Proximity].

b. Features: [Timed anti-passback] [Limited-time usage] [Capable of monitoring and auditing gate activity].

7. Digital Keypad Entry Unit: Functions only when authorized code is entered. Multiple-code capability of not less than [5] [100] [500] <Insert another number to suit Project> possible individual codes.

8. Digital Keypad Entry Unit: Functions only when authorized code is entered. Easily programmable, multiple-code capability permitting validating or voiding of not less than [100] [2500] [10,000] <Insert another number to suit Project> possible individual codes, consisting of [1 to 6] <Insert number> digits, [and permitting four different access time periods]. Provide face-lighted unit with [metal-keyed] [keyless-membrane] keypad fully visible at night.

a. Features: [Timed anti-passback] [Limited-time usage] [Capable of monitoring and auditing gate activity].

9. Radio Control: Digital system consisting of code-compatible universal coaxial receiver, [one per gate] [where indicated on Drawings], remote antenna with coaxial cable and mounting brackets, and [one permanently mounted] [four portable] <Insert number and use condition to suit Project> transmitter[s] per receiver designed to operate gates. Provide easily programmable transmitter with multiple-code capability permitting validating or voiding of not less than [1000] [10,000] <Insert another number to suit Project> codes per channel configured for the following functions:

a. Transmitters: Single-button operated, with open function.
b. Transmitters: Single-button operated, with open and close functions.
c. Transmitters: Three-button operated, with open, close, and stop functions.

Provide transmitters featuring [two] [three] [four] <Insert another number to suit Project> independent channel settings controlling separate receivers for operating more than one gate from each transmitter.

10. Telephone Entry System: Hands-free voice-communication system for connection to building telephone system with digital-entry code activation of gate operator [auxiliary keypad entry].

a. Residential System: Designed to be wired to same line with telephone.

b. Multiunit System: Designed to be wired to a dedicated telephone line, with capacity to access [20] [100] <Insert number> telephones [and with electronic directory].

11. Vehicle Loop Detector System: System including automatic closing timer with adjustable time delay before closing [timer cut-off switch] and loop detector designed to [open and close gate] [hold gate open until traffic clears] [reverse gate] <Insert function>. Provide electronic detector, with adjustable detection patterns, adjustable sensitivity and frequency settings, and panel indicator light designed to detect presence or transit of a vehicle over an embedded loop of wire and to emit a signal activating the gate operator. Provide number of loops consisting of multiple strands of wire, number of turns, loop size, and method of placement at location shown on Drawings, as recommended in writing by detection system manufacturer for function indicated.

a. Loop: Wire, in size indicated for field assembly, and sealant; style for [pave-over] [saw-cut] installation.

b. Loop: Factory preformed in size indicated; style for [pave-over] [saw-cut] installation.

12. Vehicle Presence Detector: System including automatic closing timer with adjustable time delay before closing [timer cut-off switch] and presence detector designed to [open and close gate] [hold gate open until traffic clears] [reverse gate] <Insert functions>. Provide [retroreflective] [emitter/receiver] type detector, with adjustable detection zone pattern and sensitivity, designed to detect the presence or transit of a vehicle in gate pathway by interrupting an infrared beam in zone pattern and to emit a signal activating the gate operator.

J. Obstruction Detection Devices: Provide each motorized gate with automatic safety sensor(s). Activation of sensor(s) causes operator to immediately function as follows:

1. Action: Reverse gate in both opening and closing cycles and hold until clear of obstruction.

2. Action: Stop gate in opening cycle and reverse gate in closing cycle and hold until clear of obstruction.

3. Internal Sensor: Built-in torque or current monitor senses gate is obstructed.

4. Sensor Edge: Contact-pressure-sensitive safety edge, profile, and sensitivity designed for type of gate and component indicated, in locations as follows. Connect to control circuit using [take-up cable reel] [self-coiling cable] [gate edge transmitter and operator receiver system].

a. Along entire gate leaf leading edge.
b. Along entire gate leaf trailing edge.
c. Across entire gate leaf bottom edge.
d. Along entire length of gate posts.
e. Along entire length of gate guide posts.
f. Where indicated on Drawings.
g. <Insert extent and location.>

5. Photoelectric/Infrared Sensor System: Designed to detect an obstruction in partition's path by interruption of an infrared beam in the zone pattern without obstruction contacting gate.

K. Limit Switches: Adjustable switches, interlocked with motor controls and set to automatically stop gate at fully retracted and fully extended positions.

L. Emergency Release Mechanism: Quick disconnect release of operator drive system of the following type of mechanism, permitting manual operation if operator fails. Design system so control circuit power is disconnected during manual operation.

1. Type: Integral fail-safe release, allowing gate to be pushed open without mechanical devices, keys, cranks, or special knowledge.

2. Type: Mechanical device, key, or crank-activated release.

M. Operating Features: Include the following :

1. Digital Microprocessor Control: Electronic programmable means for setting, changing, and adjusting control features [with capability of monitoring and auditing gate activity]. Provide unit that is isolated from voltage spikes and surges.

2. Fully Systems Compatible: With controlling circuit board capable of accepting any type of input from external devices.

3. Master/Slave Capability: Control stations designed and wired for gate pair operation.

4. Automatic Closing Timer: With adjustable time delay before closing [and timer cut-off switch].

5. Open Override Circuit: Designed to override closing commands.

6. Reversal Time Delay: Designed to protect gate system from shock load on reversal in both directions.

7. Maximum Run Timer: Designed to prevent damage to gate system by shutting down system if normal time to open gate is exceeded.

8. Clock Timer: [24-hour] [Seven-day] <Insert time period> programmable for regular events.

N. Accessories: Include the following :

1. Mounting kit [including pedestal].

2. Audio Warning Module: Provide ADA-compliant audible alarm sounding three to five seconds in advance of gate operation and continuing until gate stops moving.

3. Visual Warning Module: Provide ADA-compliant visible [constant-] [strobe-]light alarm sounding three to five seconds in advance of gate operation and continuing until gate stops moving.

4. Battery Backup System: Battery-powered drive and access control system, independent of primary drive system, opening gate if power fails. <Insert additional requirements.>

5. External electric-powered lock with delay timer allowing time for lock to release before gate operates.

a. Type: [Solenoid] [Magnetic] for swing gate.
b. Type: [Solenoid] [Magnetic] for slide gate.

6. [Fire] [Postal] box.

7. Fire [strobe] [siren] sensor.

8. Intercom System: <Insert requirements.>

9. Instructional, Safety, and Warning Labels and Signs: [According to UL 325] [Manufacturer's standard for components and features specified] [As indicated on Drawings] <Insert requirements>.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine areas and conditions, with Installer present, for compliance with requirements for [a verified survey of property lines and legal boundaries,] site clearing, earthwork, pavement work, and other conditions affecting performance.

1. Do not begin installation before final grading is completed, unless otherwise permitted by Architect.

B. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Stake locations of fence lines, gates, and terminal posts. Do not exceed intervals of 500 feet (152.5 m) or line of sight between stakes. Indicate locations of utilities, lawn sprinkler system, underground structures, benchmarks, and property monuments

3.3 INSTALLATION, GENERAL

A. Install fencing on established boundary lines inside property line

B. Post Excavation: Drill or hand-excavate holes for posts to diameters and spacing indicated, in firm, undisturbed or compacted soil.

C. Post Setting: Set posts in concrete footing. Protect portion of posts above ground from concrete splatter. Place concrete around posts and consolidation. Using mechanical devices to set posts is not permitted. Verify that posts are set plumb, aligned, and at correct height and spacing, and hold in position during placement and finishing operations until concrete is sufficiently cured.

1. Dimensions and Profile: As indicated on Drawings.

2. Space line posts uniformly at centre to centre.

3. Exposed Concrete Footings: Extend concrete 50 mm (2 inches) above grade, smooth, and shape to shed water.

4. Concealed Concrete Footings: Stop footings [50 mm (2 inches) <Insert dimension> below grade [as indicated on Drawings] to allow covering with surface material.

5. Posts Set into Concrete in Sleeves: Use steel pipe sleeves preset and anchored into concrete for installing posts. After posts have been inserted into sleeves, fill annular space between post and sleeve with [non shrink, non metallic grout,] [anchoring cement,] mixed and placed to comply with anchoring material manufacturer's written instructions, and finished sloped to drain water away from post.

6. Posts Set into Concrete in Voids: Form or core drill holes not less than 125 mm (5 inches ) deep and 20 mm (3/4 inch ) larger than OD of post. Clean holes of loose material, insert posts, and fill granular space between post and concrete with [non shrink, non metallic grout,] [anchoring cement,] mixed and placed to comply with anchoring material manufacturer's written instructions, and finished sloped to drain water away from post.

7. Flange Post Installation: Bolt mounting plates attached to each post to slab or structure as indicated, using expansion bolts.

3.4 FENCE INSTALLATION-Model Omega HARMONY

A. Terminal Posts: Locate terminal end, corner, and gate posts at changes in horizontal or vertical alignment of [15 degrees or more] [30 degrees or more] [as indicated on Drawings] <Insert requirement>.

B. Square post installation 2 in. or 3 in.: Holes for post must be a minimum of 200 mm (8 in.) in diameter and 1070 mm (42 in.) in depth. Once the concrete is set, the mesh sections are installed with the Universal bracket kits 2 in. or 3 in., flush with the horizontal wires of the panel (no gap). Post spacing are for 2 in. post 2483 mm (97 3/4 in.) c/c with an adjustment of ± 38 mm (1-1/2 in.) and for the 3 in. post 2508 mm ( 98 3/4 in.) c/c of the post with an adjustment of ± 38 mm (1-1/2 in.) on each side.

For the fence installed in order to follow a slope, it is required to step the fence sections. The collar of the Universal bracket can be slided along the square post at the desired height and should always be installed flush with horizontal wire (no gap). When faced with a steep slope, it will be necessary to order longer posts and panels cut in half in order to keep the gap under the panel to a minimum. A very steep slope may require a portion of the panel to be buried but this is only recommended when the manufacturer supplies specially coated panels.

C. Mesh Panels: The fence panel shall be installed at a distance of a minimum of 30 mm (1-1/4 in.) and maximum of 50 mm (2 in.) above the ground surface.

D. Upon cutting or trimming, a post or a wire mesh section, apply a zinc rich primer to the exposed ends and finish with the matching touch-up paint supplied by the manufacturer.

3.5 CAST-IN-PLACE CONCRETE

A. General: Comply with ACI 301 for cast-in-place concrete.

B. Materials: Portland cement complying with ASTM C 150 <Insert type if required>, aggregates complying with ASTM C 33, and potable water [for ready-mixed concrete complying with ASTM C 94]. [Measure, batch, and mix Project-site-mixed concrete according to ASTM C 94.]

1. Concrete Mixture: Normal-weight concrete with not less than 20.7- Mpa (3000-psi) compressive strength (28 days), 75-mm (3-inch ) slump, and contain " coarse aggregate " of a minimum diameter of 5 mm (1/5 “) to a maximum of 20 mm (3/4”) maximum size aggregate. A 5% to 7% air entrained or according to recommendation of section 03000.

C. Materials: Dry-packaged concrete mix complying with ASTM C 387 for normal-weight concrete mixed with potable water according to manufacturer's written instructions.

3.6 GROUT AND ANCHORING CEMENT

A. Nonshrink, Nonmetallic Grout: Premixed, factory-packaged, nonstaining, noncorrosive, nongaseous grout complying with ASTM C 1107. Provide grout, recommended in writing by manufacturer, for exterior applications.

B. Erosion-Resistant Anchoring Cement: Factory-packaged, nonshrink, nonstaining, hydraulic-controlled expansion cement formulation for mixing with potable water at Project site to create pourable anchoring, patching, and grouting compound. Provide formulation that is resistant to erosion from water exposure without needing protection by a sealer or waterproof coating and that is recommended in writing by manufacturer for exterior applications.

3.7 GATE INSTALLATION & ADJUSTMENT

A. Install gate posts in accordance with manufacturer's instructions.

B. Concrete Set Gate Posts: Drill holes in firm, undisturbed or compacted soil. Holes shall have a diameter 4 times greater than outside dimension of post, and depths approximately 152mm (6 in.) deeper than frost level. Excavate deeper as required for adequate support in soft and loose soils, and for posts with heavy lateral loads. Set post bottom 36 inches (914mm) below surface when in firm, undisturbed soil. Place concrete around posts in a continuous pour, tamp for consolidation. Trowel finish around post and slope to direct water away from posts. Check each post for vertical and top alignment, and maintain in position during placement and finishing operations. 

C. Install gates perfectly horizontal and levelled (at junction) ,plumb, and secure for full opening without interference.

D . Attach hardware so to have the nuts inside the property thus making the assembly tamper-proof which will prevent unauthorized removal. Install ground-set items in concrete for anchorage.

E. Adjust hardware for smooth operation and lubricate where necessary to operate smoothly, easily, and quietly, free from binding, warp, excessive deflection, distortion, nonalignment, misplacement, disruption, or malfunction, throughout entire operational range. Confirm that latches and locks engage accurately and securely without forcing or binding.

3.8 GATE OPERATOR INSTALLATION
(Indicative only. Consult local professional for proper design.) (See notes section 2.4.)

A. General: Install gate operators according to manufacturer's written instructions, aligned and true to fence line and grade.

B. Excavation for [Support Posts] [Pedestals] [Concrete Bases/Pads]: Hand-excavate holes for bases/pads, in firm, undisturbed or compacted soil to dimensions and depths and at locations as required by gate operator component manufacturer's written instructions and as indicated on Drawings.

C. Concrete Bases/Pads: Cast-in-place or precast concrete, made of not less than 20.7-Mpa (3000-psi) compressive strength (28 days), [depth not less than 300 mm (12 inches)] <Insert depth 150 to 300 mm (6 to 12 inches) below frost line or detail on Drawings>, dimensioned and reinforced according to gate operator component manufacturer's written instructions and as indicated on Drawings.

D. Vehicle Loop Detector System: [Cut grooves in pavement and] bury and seal wire loop according to manufacturer's written instructions. Connect to equipment operated by detector.

E. Comply with NFPA 70 and manufacturer's written instructions for grounding of electric-powered motors, controls, and other devices.

3.9 GROUNDING AND BONDING
(Indicative only. Consult local professional for proper design.)

A. Fence Grounding: Install at maximum intervals of [ 450 m (1500 feet)] <Insert a lesser distance where grounding resistance is high> except as follows:

1. Fences within 100 Feet (30 m) of Buildings, Structures, Walkways, and Roadways: Ground at maximum intervals of [750 feet (225 m)] <Insert a lesser distance where grounding resistance is unusually high>.

2. Gates and Other Fence Openings: Ground fence on each side of opening.
2.1 Bond metal gates to gate posts.
2.2 Bond across openings, with and without gates, except openings indicated as intentional fence discontinuities. Use No. 2 AWG wire and bury it at least 18 inches (460 mm) below finished grade.

3. Conductors: Bare, solid wire for No. 6 AWG and smaller; stranded wire for No. 4 AWG and larger.
3.1. Material Above Finished Grade: [Copper] [Aluminum].
3.2. Material On or Below Finished Grade: Copper.
3.3. Bonding Jumpers: Braided copper tape, 1 inch (25 mm) wide, woven of No. 30 AWG bare copper wire, terminated with copper ferrules.

4. Connectors and Ground Rods: Listed in UL 467.
4.1. Connectors for Below-Grade Use: Exothermic welded type.
4.2. Ground Rods: Copper-clad steel.
Size: 5/8 inch by 96 inches (16 by 2400 mm).

B. Protection at Crossings of Overhead Electrical Power Lines: Ground fence at location of crossing and at a maximum distance of 150 feet (45 m) on each side of crossing.

C. Fences Enclosing Electrical Power Distribution Equipment: Ground as required by IEEE C2, unless otherwise indicated.

D. Grounding Method: At each grounding location, drive a ground rod vertically until the top is 6 inches (150 mm) below finished grade. Connect rod to fence with No. 6 AWG conductor. Connect conductor to each fence component at the grounding location.

E. Bonding Method for Gates: Connect bonding jumper between gate post and gate frame.

F. Connections: Make connections so possibility of galvanic action or electrolysis is minimized. Select connectors, connection hardware, conductors, and connection methods so metals in direct contact will be galvanically compatible.

1. Use electroplated or hot-tin-coated materials to ensure high conductivity and to make contact points closer in order of galvanic series.

2. Make connections with clean, bare metal at points of contact.

3. Make aluminum-to-steel connections with stainless-steel separators and mechanical clamps.

4. Make aluminum-to-galvanized-steel connections with tin-plated copper jumpers and mechanical clamps.

5. Coat and seal connections having dissimilar metals with inert material to prevent future penetration of moisture to contact surfaces.

G. Bonding to Lightning Protection System: If fence terminates at lightning-protected building or structure, ground the fence and bond the fence grounding conductor to lightning protection down conductor or lightning protection grounding conductor complying with NFPA 780.

3.10 FIELD QUALITY CONTROL- GROUNDING
(Indicative only. Consult local professional for proper design.)

A. Ground-Resistance Testing Agency: [Owner will engage] [Engage] a qualified independent testing agency to perform field quality-control testing.

B. Ground-Resistance Tests: Subject completed grounding system to a megger test at each grounding location. Measure ground resistance not less than two full days after last trace of precipitation, without soil having been moistened by any means other than natural drainage or seepage and without chemical treatment or other artificial means of reducing natural ground resistance. Perform tests by two-point method according to IEEE 81.

C. Desired Maximum Grounding Resistance Value: 25 ohms.

D. Excessive Ground Resistance: If resistance to ground exceeds desired value, notify Architect promptly. Include recommendations to reduce ground resistance and proposal to accomplish recommended work.

E. Report: Prepare test reports, certified by testing agency, of ground resistance at each test location. Include observations of weather and other phenomena that may affect test results.

3.11 ADJUSTING (For gate operator only.)

A. Gate: Adjust gate to operate smoothly, easily, and quietly, free from binding, warp, excessive deflection, distortion, nonalignment, misplacement, disruption, or malfunction, throughout entire operational range. Confirm that latches and locks engage accurately and securely without forcing or binding.

B. Automatic Gate Operator: Energize circuits to electrical equipment and devices. Adjust operators, controls, safety devices, [alarms,] and limit switches.

1. Electrohydraulic Operator: Purge operating system, adjust pressure and fluid levels, and check for leaks.

2. Operational Test: After electrical circuitry has been energized, start units to confirm proper motor rotation and unit operation. Test controls[, alarms,] and safeties. Remove damaged and malfunctioning units, replace with new units, and retest.

C. Lubricate hardware[, gate operator,] and other moving parts.

3.12 DEMONSTRATION (For gate operator only.)

A. Engage a factory-authorized service representative to train Owner's personnel to adjust, operate, and maintain gates.

1. Test and adjust [operators,] [controls,] [alarms,] [safety devices,] hardware, and other operable components. Replace damaged or malfunctioning operable components.

2. Train Owner's personnel on procedures and schedules for starting and stopping, troubleshooting, servicing, and maintaining equipment and schedules.

3. Review data in maintenance manuals. Refer to Division 1 Section "Contract Closeout."
And/ or Section "Operation and Maintenance Data."

4. Schedule training with Owner (,through Architect,) with at least seven days’ advance notice. END OF SECTION 02821