Q-FLOOR/TAPROUTE SYSTEM (GKX with Tapmate IV)



Q-FLOOR/TAPROUTE SYSTEM (GKX with Tapmate IV) March 2008

PART 1: GENERAL

1.01 SCOPE

Furnish the complete structural/electrical steel floor system. Work includes, but is not necessarily limited to, the following principal items:

A. 3” Deep composite cellular and non-cellular steel deck units and accessories, including concrete retainer flashings where indicated; perimeter edgeform if specified.

B. All factory punched cell access holes at trench header and preset outlet box locations.

C. Trench headers, flute closers, preset outlet boxes, grommets, butt joint tape and power risers.

D. Preset outlet box activation assemblies.

1.02 RELATED WORK SPECIFIED IN OTHER SECTIONS (CSI Master Format)

A. Concrete, welded wire fabric, or reinforcing fibers; Section 03 30 00

B. Fireproofing; Section 07 81 00

C. Decking; Section 05 31 00

D. Electrical; Section 26 27 00 & 26 05 33

1.03 QUALITY ASSURANCE

A. Standards

1. This specification establishes the minimum quality of required function, dimension, size and appearance to be met by any proposed substitution.

2. The manufacturer and erector shall demonstrate a minimum of five years experience with this type of electrified floor system on similar sized projects.

B. Codes and Approvals (latest editions)

The project design and material furnished shall be in strict compliance with the following codes and approvals:

1. Steel deck section properties shall be calculated in strict accordance with the procedures outlined in the American Iron and Steel Institute (AISI) "Specification for the Design of Cold Formed Steel Structural Members, " latest edition.

2. Composite beams and girders shall be designed in strict accordance with the American Institute of Steel Construction (AISC) Specification for the design of composite beams with shear studs and steel deck composite slabs, latest edition.

3. American Welding Society Structural Welding Code with reference to applicable AISC and AISI provisions.

4. Compliance with UL 209 Standard.

5. ICBO (ICC) reports shall cover section properties, superimposed slab capacities, and diaphragm design shears for all cellular and non-cellular decking gauges and profiles being used. In addition, ICBO (ICC) reports shall substantiate diaphragm shear ratios, section properties, and approved gauges for all metal decks being used with trench header and concrete fill.

6. Installation shall comply with the National Electrical Code.

7. Trench header, cellular floor deck units, and activations classified and listed in Underwriters Laboratories Fire Resistance Directory. Each cellular floor unit shall bear the UL label and marking. Activations shall be listed in UL Fire Resistance Directory. UL rating shall be based on one UL Design Assembly Number covering all components of floor assembly, i.e., cellular and non-cellular floor decking, bottomless trench header, preset inserts, activating assemblies, concrete type and thickness, composite beam and applicable spray fireproofing.

1.04 SUBSTITUTIONS

A. The materials, products, and equipment specified in this section establish a minimum standard of quality and required function, dimension, and appearance to be met by any proposed substitution.

B. No substitutions will be considered unless written request for approval has been submitted by the bidder and has been received by the Architect at least twenty (20) days prior to the date for receipt of bids.

C. Each such request shall include the name of all items to be substituted with appropriate catalogs and a complete description of the proposed substitute including drawings, cross-sections, a full-scale prototype assembly, performance and test data, compliance with codes and approvals, and other information necessary for a total evaluation.

D. All approved substitutes will be named in an addendum issued ten (10) days prior to bid date.

1.05 SUBMITTALS AFTER AWARD OF CONTRACT:

A. Manufacturer's specifications and installation instructions for each product specified shall be submitted for approval. Included shall be a manufacturer's certification required to show compliance with these specifications. Also prior to product shipment, a copy of each installation instruction shall be distributed to the installer with a copy of transmittal submitted to show compliance.

B. Shop Drawings

1. Detailed drawings showing layout and types of deck units, shape, gauge, dimensions, perimeter pour stop, and end closers, supplementary framing, cut openings, special jointing or other accessories shall be submitted.

2. Schedule of field welding shall be submitted.

3. Trench header, preset outlet box and riser locations and details, trench header expansion joints, typical expansion joint through floor, if required, shall be submitted.

C. The following listed samples shall be submitted: (1) Multi-Service Preset Outlet Box mounted on one foot sample cellular floor raceway complete with fully grommetted pre-punched holes, illustrating all finish hardware and internal parts. (2) Two foot length of selected width trench header with factory assembled cover, tile stops, side rails, latch clips, adjustable compartment dividers, and fasteners. (3) Activation Options Catalog.

PART 2 - PRODUCTS

2.01 3"DEEP STEEL FLOOR UNITS

A. Material: The steel floor units and associated accessories shall be fabricated from steel sheet conforming to ASTM A653-94, with a minimum yield strength of 33 KSI.

B. Fabrication

1. Steel floor units shall be fabricated in lengths to span a minimum of four structural supports (three spans) except where precluded by the building layout. The minimum depth of the units shall be 3" and each unit shall contain 3 separate cells.

2. Protective Coating shall conform to ASTM A924 and Federal Specification QQ-S-775E, Type 1, Class E, conforming to G-60 minimum coating class and complying with UL 209.

3. Cellular floor units and trench header shall conform as electrical raceways to the requirements of UL 209.

4. Deck unit gauges shall be minimum 20 gauge for non-cellular and 20/20 gauge for cellular units and designed to meet span, load, and deflection criteria.

5. Cellular floor shall be roll-formed to assure dimensional uniformity and strength. Sufficient embossments shall provide the horizontal shear design loading based on a minimum factor of safety of 2.0 on ultimate load. Minimum depth of embossments or indents shall be 0.060".

6. Shear devices rolled into deck webs or flanges shall be spaced at 3" maximum centers along the length of the deck or floor unit and at 8" maximum spaces in the transverse direction.

7. Flat compression elements shall be considered as "stiffened" by other elements only if such elements are connected or are welded together at 6" maximum spaces in the direction of deck span. Such connections or welding shall be adequate to develop the full shear which could occur at the weld interface with a safety factor of 2.0.

8. Where shear connectors are utilized for composite frame design, the maximum spacing of deck welds or shear connectors to support beam flanges shall not exceed 18" per AISC specifications.

9. Top entry cell access holes at trench header or preset outlet box locations will be permitted only when tested strength reductions for each cellular unit and gauge combination being supplied on the project are submitted for review and approved by the project structural engineer.

10. Cellular units with immediately adjacent cells separated only by steel dividers (no concrete separation between cells) will be acceptable only when provided with UL listed cell separators at each butt joint nested within the cells to assure against wire or fish tape crossover.

C. Design

1. Calculate section properties of the steel floor units according to the latest AISI procedures. Section properties shall be reduced accordingly where electrical access holes are provided in the effective areas (such as flanges) of the floor unit profile. The floor deck shall be designed non-compositely to carry all dead and live loads at all trench header spans.

2. In cases where multi-span floor units are used, base non-composite and composite design upon uniform load placed on all spans simultaneously.

3. Maximum allowable bending stress in the steel floor is 0.6 Fy for non-composite design in trench header spans.

4. Steel deck deflection shall not exceed 1/180th of the clear span or 3/4" maximum, relative to the supports, under the uniformly distributed concrete dead load (all spans loaded simultaneously).

2.02 TRENCH HEADER

A. Trench Header shall be UL labeled, full bottomless type.

B. Removable Covers shall conform to UL 209 for minimum thickness of roller leveled steel after shearing for size. A manufacturer's letter of certification guaranteeing roller leveling of plate after size shearing shall be provided upon request.

C. Covers shall be secured by mechanical latching devices without any exposed surface fasteners. Direct connection of the cover plate to the side rail assembly with screws or other mechanical fasteners is not acceptable. Steel screws penetrating an aluminum race or slot are not permitted.

D. Factory Assembled Cover Assemblies with Side Rails shall be adjustable from

2-3/8" (min.) to 3-5/16" (max.) over top of cells for 2-1/2" nominal concrete fill, from 3-1/8" (min.) to 4-1/16" (max.) over top of cells for 3-1/4" nominal concrete fill, and from 1-7/8" (min.) to 2-1/2" (max.) over top of cells for 2" nominal concrete fill.

E. A minimum of five square inches per lineal inch of mechanical locking surface of side rail to concrete shall be provided. Anchoring clips and studs used as keying device substitutes are not acceptable. Side rail shall be nominally 1/8" thick and shall provide a 3/8" flat width as a concrete screed and for proper seating of tile or carpet. An alignment key mechanism shall be provided to horizontally and vertically align adjacent trench header sections.

F. Covers shall be painted by a two-coat spray or dip process with an air-dried thickness of 1.0 mil dry film thickness.

G. Longitudinal Cover Seating Gaskets with a nominal width of 1/4" shall be integral with the vinyl tile stop securely anchored to trench side rail units. Separate, "lay in" type gaskets are not permitted.

H. Edging for Finished Floor Tile shall be vinyl composition with integral cover seating gaskets 1/8" width on top. Standard color shall be brown with custom colors available.

I. Cell Access Holes: A total of nine (9) holes at each cell/trench intersection shall be provided as follows:

(1) Four 1-1/2" x 7" obround, factory punched holes into webs of each telephone cell and each special service or data cell. One-piece, preformed, rigid nylon, snap-in grommets shall be provided and shall firmly fit into all web holes and shall completely grommet the opening perimeter. No metal edge shall be exposed to wires at any punched opening. Flexible stick grommets are not acceptable at any cell entry hole. Cutting or other modification to factory supplied grommets is not acceptable.

(2) One 2-1/4" round, factory punched hole into top of each power cell bushed with a zinc power transition sleeve. No metal edge shall be exposed to wires at any punched opening. Flexible stick grommets are not acceptable. Cutting or other modification to factory supplied grommets is not acceptable.

J. Effective minimum width of trenches shall be 1-3/4" less than cover width. Unit lengths shall not exceed 6'0" to prevent installation damage.

K. Cell closers at cell ends shall be made from minimum 22 gauge steel angles with protective coating conforming to UL 209.

L. Power wire compartments shall conform to UL 209, with a minimum steel thickness of 0.054" in 3-1/2", 4-1/2" or 5-1/2" widths with a 3-1/4" diameter opening in base to align with self-grommetted 2-1/4" round adapter to power cell opening. Vertically adjustable dividers, one each side, shall be provided with a 1/2" wide top flange bearing surface to support the cover plate. A locking nut device for precise height setting shall be provided. Manufacturer shall provide test data to show the adequacy of the locking nut device to support a 500# concentrated load without significant vertical slip. Welding of adjustable dividers to provide cover support is not permitted.

M. Trench/raceway interconnections between telephone and data compartments shall occur at 12" intervals without reducing effective cross section of compartments. All access openings shall be bushed and/or curved edged. Minimum area for interconnection shall be 15 sq. inches.

N. Cover Plate Load Capacity: Trench cover plate and power compartment/side rail supports must withstand a static concentrated loading of 500# and meet UL 209 requirements.

Note: Where higher concentrated load capacities are required, the manufacturer shall provide test date showing the capability of the cover plates of a trench header to satisfactorily carry a concentrated static load.

2.03 PRESET OUTLET BOXES

A. Preset outlet box shall be UL labeled and shall provide for 3 separate electrical services; power, low voltage, and spare.

B. All openings into the box shall be factory punched. Openings in webs of telephone and special service or data cells shall be 1-1/2" x 3-3/4" obround in each cell (minimum 4.57 square inch area after complete grommetting with snap-in grommet is applied). Opening in top flange of power cell shall be 1-3/4" diameter round (minimum 1.75 square inch area after complete grommetting with snap-in grommet is applied). One-piece, preformed, rigid nylon, snap-in grommets shall be provided and shall firmly fit into wire egress holes and shall completely grommet the opening perimeter. No metal edge shall be exposed at any wire egress opening. Flexible, unformed, stick grommets are not acceptable. No partial grommetting or exposed edges of any kind are acceptable.

C. Preset outlet box shall be one piece integral formed steel body (sides, ends, and top), 4-1/2" wide by 9-1/8" long with a nominal 4" x 7" (28 sq. inch minimum) top entry opening into box body. Top of box shall include a factory screw attached "break out" cover (0.027" minimum thick steel) coated with a concrete release agent. The "break out" cover on the box shall be 5/8" deep for ease of concrete removal.

D. Preset outlet box body shall be one piece construction, minimum 18 gauge, zinc-coated steel, provided with stiffeners to prevent collapse during construction operations. The box shall withstand a vertical load of 200# without permanent deformation. Boxes for 2-1/2" and greater concrete fills shall have locking/grounding latches for one-step, snap-in installation in the field. Boxes shall be secured by four integral snap-lock tabs into separate, pre-punched holes in cellular unit dedicated for that sole purpose. Preset placement by snap locking shall not in any way incorporate the punched cell openings

dedicated to wire egress into the preset. Preset placement by snap locking shall not interfere in any way with low voltage grommets. Boxes less than 18 gauge thickness must have an auxiliary grounding strap screwed or welded to the deck and the outlet box.

E. All preset outlets shall be provided with two 3/4" knock-outs (one in each long side adjacent to power cell) for conduit connection as required.

F. Preset outlet box capacity (activated):

Floor Depth Concrete Fill Volume

3" 2-1/2" 169 cu. in.

3" 3-1/4" 199 cu. in.

2.04 PRESET OUTLET BOX ACTIVATION ASSEMBLIES

A. Activation assemblies shall consist of cover assembly, device mounting brackets and partitions, grommets, and screws. High and low voltage connectors shall not be part of the activation kit. Box activation shall consist of hardware for either concealed (all connectors and fittings below the finished floor surface) or flush mounted. All removable activation cover plates shall be provided with a positive locking device. An independent lab report confirming this performance shall accompany submittal as proof of conformance. Friction fit type latching is expressly prohibited. Activation options shall be provided as follows: (Note: desired type, spec only as required)

1. Easy Access Standard - Provide one 15 or 20 amp duplex power receptacle at floor surface with standard dust covers; plus mounting plates for 2 duplex power receptacles below floor and 2 separate brackets for low voltage connectors.

2. Concealed Sloped - Provide bracket for one or two 15 or 20 amp duplex receptacles, plus a single or double duplex modular telephone plate.

3. Easy Access Deluxe - Provide mounting brackets for one, two, three or four in-cavity 15 or 20 amp duplex receptacles, plus a modular telephone plate, plus a data interconnect plate. Other options include one 250 volt power or one 30-amp receptacle, or one twist-lock surface mounted receptacle.

4. Wired Partition Interface -

a. High Voltage - Valox or aluminum (select one) cover plate shall accept conduit transition and shall provide one in-cavity 15 or 20 amp duplex receptacle. The preset outlet box shall contain a power connect/junction box which accepts a partition flexible power whip, a flexible conduit, or hard wiring. *

b. Low Voltage - Valox or aluminum cover shall be removable and separate from high voltage cover plate. Single or double modular duplex telephone plate, plus a data interconnect plate shall be furnished. Complete separation of power and low voltage wires shall be maintained.

5. Above the Floor Multi-Service Outlet - Provide for one 15 or 20 amp duplex receptacle, plus one low voltage transition above the floor, and the other low voltage connection in the box cavity.

B. Activation Cover Options (Specify as required)

1. Easy Access Deluxe - Lexan Plastic (KED-NAC) shall consist of a flange ring and separate cover with egress shield. This shield shall be designed to contain multiple grommetted individual ports to separate, shield, and protect wires against crimping.

* Removal of cover plate shall not expose power connection and damage. This shield shall be totally self abandoning and permanently attached to the activation cover so it cannot be lost. Detachable wire egress blocks are not acceptable. Flange and cover shall be available in any color to blend aesthetically with surroundings. Flange and cover shall be manufactured from structural Lexan and shall be capable of sustaining an ultimate static point load of 800 pounds through a one inch mandrel. A lab report confirming this performance shall be available. Cover shall be designed with a recessed area to accept a carpet insert to reduce the visual impact. Cover shall be detachable and re-attachable in either direction on the flange ring. Field notched wire egress holes in the cover or on the flange ring are expressly prohibited. Lexan cover shall accommodate Easy Access Deluxe, Concealed Sloped, and Multi-Service Afterset Activation Assemblies as specified.

2. Easy Access Deluxe - Aluminum (KED-MC) shall consist of a flange ring and separate cover with wire egress ports. Cover shall be totally self abandoning with aluminum blocks stored on the underside of the activation lid with Velcro tabs during activation. Aluminum finish shall be anodized, with a hard coat process in a silver or bronze color. Aluminum flange ring and cover shall be made of extrusions and plate. Cast aluminum parts shall not be used to insure adequate structural capacity. Flange and cover shall be capable of sustaining an ultimate static point load of 1500 pounds through a one inch mandrel. A lab report confirming this performance shall be available. Cover shall be designed with a recessed area to accept a carpet insert to reduce the visual impact. Cover shall be detachable and re-attachable in either direction on the support ring. Field notched wire egress holes in the cover or on the flange ring are expressly prohibited. Aluminum cover shall accommodate Easy Access Deluxe, Concealed Sloped, and Multi-Service Afterset Activation Assemblies as specified.

3. Concealed - Valox Plastic (KEC-PC-3, 4, 5) shall consist of a three-piece assembly consisting of a screw attached center, a hinged power and telephone cover, and a removable data cover. Wires shall exit from connections recessed below the carpet through field notched openings in the cover and through carpet cuts as required. Valox cover shall accommodate Easy Access Deluxe and Concealed Sloped Activation Assemblies as specified.

4. Easy Access Standard - Valox Plastic (KEC-PC-5, 7, 8, 12) shall consist of a multiple piece cover assembly comprising of a screw attached center frame with two removable doors to accommodate a flush receptacle, and two removable under the carpet telephone and data covers. Wires shall exit from connections recessed below the carpet through field notched openings in the covers and through carpet cuts as required. Valox cover shall accommodate the Easy Access Standard Activation Assembly as specified.

5. Wired Partition Interface - Valox Plastic (KEC-PC-5, 6) shall consist of a screw attached center power cover, plus two removable telephone and data covers. The cover assembly shall be concealed by the carpet to blend aesthetically with surroundings; only the fittings and conduit shall be exposed. Valox cover shall accommodate the Wired Partition Interface Activation Assembly as specified.

6. Above The Floor Multi-Service Outlet shall consist of a two piece extruded brushed aluminum head, plus one removable under-carpet Valox cover for either telephone or data. The aluminum head shall accommodate the Above the Floor Multi-Service Outlet Activation Assembly as specified.

C. Activation Assembly Selection (Select one or more of the following options)

1. The quantity of initial activations during fit-out to be installed at "move in" shall meet both the following criteria:

(a) Ten percent of the total preset and potential afterset count minimum.

(b) One activation every 150 sq. ft. minimum density of usable office space.

2. Activation Option (select as required):

( ) Easy Access Deluxe Lexan Cover

( ) Easy Access Deluxe Activation

( ) Concealed Sloped Activation

( ) Multi-Service Afterset

( ) Easy Access Deluxe Aluminum Cover

( ) Easy Access Deluxe Activation

( ) Concealed Sloped Activation

( ) Multi-Service Afterset

( ) Concealed Valox Cover

( ) Easy Access Deluxe Activation

( ) Concealed Sloped Activation

( ) Easy Access Standard - Valox

( ) Easy Access Standard Activation

( ) 250 Volt Simplex/Duplex

( ) 30 Amp Simplex/Duplex

( ) Twist Lock Receptacle

( ) Wired Partition Interface - Valox

( ) Wired Partition Interface Activation

( ) Above The Floor Multi-Service Outlet

( ) Above The Floor Multi-Service Activation

PART 3: INSTALLATION (by Installation Contractor)

3.01 STEEL FLOOR UNITS

Install steel floor units and accessories in accordance with the manufacturer's final approved erection drawings and the manufacturer's floor deck installation manual.

A. Installing Floor Units

1. Floor units shall be placed on the supporting steel framework and adjusted to final position with proper end bearing and accurate alignment at the butt joint before permanent fastening. Units shall not be stretched or contracted in the transverse direction. Cellular units shall be laid out on the structural steel frame in each bay and located in strict accordance with the deck erection drawings in order to maintain the transverse module as dimensioned.

2. Steel floor shall not be used for storage or working platforms until it has been permanently fastened. Heavy storage loads shall be supported on wood blocking in the flutes of the deck.

3. Excessive damage to floor units prior to or during the construction phrase can significantly reduce steel deck load-carrying capacity and create a hazardous condition for workers. Appropriate care and judgment shall be exercised to insure that any excessively damaged floor unit is suitably strengthened, shored, or replaced. Shoring of deck in trench span is prohibited since these spans are designed non-compositely.

B. Floor Units shall be permanently fastened to the steel supports with 3/4" diameter fusion welds or 3/4" stud welds at end and intermediate supports as shown on the deck erection drawings. Screws, welds, or button punches shall be used to fasten sidelaps as shown on the deck erection drawings.

C. All deck cells shall be kept clear and free of debris to ensure proper wire passage.

D. Floor deck shall be cut to fit around columns and shall be braced as shown on the structural drawings.

E. Closures shall be fastened in place at columns and perimeter ends of cells or where cells change direction as shown on the deck erection drawings.

F. The floor deck supplier shall provide for those framed floor openings shown on the structural drawings. Smaller openings shall be field cut by the trade requiring the opening. Where possible, holes shall be blocked out to eliminate concrete entry. Cutting of the metal deck shall be done only after the concrete has cured. The structural engineer shall be consulted before any hole is cut. Reinforcement, if required, at all openings shall be supplied by others.

G. Field welds or abrasions on floor units or flashings shall be field painted only when the finished installation is permanently exposed to the weather.

H. Concrete containing chlorides from any source shall not be placed on galvanized deck, trench, or activation units.

3.02 TRENCH HEADER INSTALLATION

The cellular floor system including bottomless trench header and preset electrical outlets shall be installed in accordance with the manufacturer's approved electrical installation drawings and the manufacturer's electrical components installation manual.

A. Bottomless Trench Header

1. All factory punched openings shall be completely bushed with snap-in grommets or power transmission sleeve prior to wire pulling.

2. Trench header assembly and side flute closures shall be fastened to top of cells per manufacturer's standards and installation instructions.

3. Cover assembly shall be leveled using screw adjustment prior to concrete placement. After adjustment or leveling of trench after concrete pour is not required and is prohibited..

*4. Trench header shall be set at screed height. Contractor placing the floor fill shall carefully hand finish a minimum of 24" adjacent to Tapway sides, so that top of fill and electrical Tapway and/or devices are flush after concrete has set.

5. Vinyl edging shall be flush with adjacent screed strip and cover during installation. Where floor finish is carpet, the edging strip shall remain in the flush position.

6. After concrete pour and prior to wiring, adjustable dividers shall be raised to correct level and secured with lock washer and bolt and nut assembly to provide positive support for the trench header cover. Welding of adjustable dividers is not permitted.

7. Latch clips shall be used to detach and reattach cover plates to trench side rail assembly for ease of access. Direct attachment of cover plates to side rail assembly with screws or other devices is prohibited.

8. Two cover lifting devices shall be delivered to owner for proper cover removal.

B. Preset Box Installation

1. Permanent concrete release agent shall be applied both to the inside and outside of “breakout cover”, if not already shop applied.

2. Standard boxes shall be secured by four integral snap-locks into separate, pre-punched holes in cellular unit dedicated for that purpose. Preset placement by snap locking shall not in any way incorporate the punched cell openings dedicated to wire egress into the presets. Preset placement by snap locking shall not interfere in any way with low voltage grommets to protect wires. Pop-riveting or weld-down of outlet boxes is not required and should be done only in emergency situations.

3. An electronic multi-service box locator shall be supplied to the owner for maintenance purposes.

C. Activation Assemblies - Installation shall be in accordance with manufacturer's installation instructions and the Q-Floor Taproute Owners Manual.

D. Miscellaneous

1. Self-adhesive tape shall be applied over all abutting end joints of cellular units.

2. Wire mesh shall be cut to fit around outlet box “breakout” covers.

3. All connections shall be completed using components of the system as indicated on drawings including, but not limited to, cell feeds and pull boxes. Openings for cell feeds and pull boxes shall be field cut in closet areas as required.

4. Risers are installed under the electrical section of these specifications.

* Note: Place this statement in concrete placement Section 03300

NOTE: These items should be included under the general or special conditions and are to be the responsibility of the General Contractor. They should be cross referenced in this specification.

1. "Protection of Electrical Floor System Trench Header: Equipment and heavy traffic shall not be allowed over trench headers during the entire construction period without first installing ramps over the trench headers. Project shall be constructed to accommodate imposed loads without transferring the loads to the trench headers. Bent, warped, or damaged cover plates or other components of the trench header system shall be replaced at no expense to the owner or Robertson."

2. "Concrete used over galvanized steel components of the cellular floor system shall not under any circumstances contain chlorides from any source."

3. "Where floor slabs are screeded from diagonally opposite columns to achieve a "dead level" floor, the support beams must be shored to prevent overloading of the floor units and thick slabs at the center of the bay. If deflections are predictable, a deeper preset outlet box can be used in the center bay areas."

4. Cut wire mesh to fit around preset outlet boxes on cellular floor.

General Information for Designer - Do not include in Specification

SPECIFICATION KEYS

FEATURE CUSTOMER BENEFIT

1.01 All holes shop cut Save field labor

1.03 UL Electrical Listing Electrical Approval

ICBO Diaphragm shear Quantifies structural integrity

AISI, AISC and performance

1.03 UL Assembly Fire Classification Obtain a bona fide fire rating

Certificate of Occupancy

1.04 Substitution clause Up front control

1.05 Installation instructions Insure quality of installation

Speed submittal/approval process

1.05 Samples Submission Customer clearly understands what is to be supplied; no "bait and switch"

2.01 Steel/Gauge/Galv./ Establish minimum cellular unit performance

Embossments/Welds and quality

Shear stud spacing/Design

2.02 Bottomless Trench Header Save field labor, increase capacity

2.02 Side rail Keying To maintain side rail embedment so cover plates will remove and reattach easily; develop adequate bond to concrete.

2.02 Shop punched nine-hole pattern Capacity to accommodate the cable in any direction and prevent “doublebacks” which reduce wiring space. Minimum radius bends accommodate fiber optics. Superior grommets to eliminate sharp edges.

2.02 Roller leveled covers Eliminating the telegraphing of trench thru the carpet after the floor finish is installed.

2.02 Web Holes vs. top entry Minimal effect on deck strength. (Top flange holes

holes decrease section properties by 15-40% requiring heavier gauge deck).

2.02 Mechanical Latching Provides the only truly quiet trench duct. Eliminates with spring loaded clips screws which are very time consuming to remove & work only once.

2.02 Readjustable Partition Power Assure solid feel; prevent deflected covers;

Compartment Adjustment at any time in life of building

(Welded partitions are unadjustable)

2.02 Low Voltage Compartment Maximizes bottomless trench flexibility of low

Interconnection voltage compartments

2.03 Web Holes Larger bend radii for wires. Allow wires to “sweep” into cells.

2.03 Volume Bottomless trench permits splicing & storage in low flutes without reducing trench feed area.

2.03 One step preset installation Saves time and money

2.03 18 Gauge Preset More construction resistant than min. 20 Ga. boxes

2.03 Box Activation Options Maximize activation flexibility

2.03 Duplex receptacles immediately Convenience and flexibility of wiring circuits.

adjacent in outlet box

2.03 Lid and support ring made Provides aesthetic choices and develops adequate

from Lexan Plastic strength.

in color choices

2.03 Permanently by grommetted Complies with U.L requirements that all wire ports be

Wire Egress Ports grommetted.

from activation lids

2.03 Lockable egress shield To protect cables from being crimped during service

2.03 Activation Covers with positive A very important safety issue-friction type covers

finger-type latching can stay open due to wires in the box creating a

tripping hazard--friction type latch not adequate.

2.04 Load capacity Robertson activation covers are structurally superior.

Covers must resist point loads.

2.04 Abandonment feature attached Unattached abandonment gets lost and is unsafe.

to lid

2.04 Self-Abandonment of Activations Abandoned notches on the original cover plate are a safety hazard to foot traffic

3.01 - 3.02 Installation Instructions The System functions as intended.

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