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

Transcription

1 Q-FLOOR/TAPROUTE SYSTEM (GKX with Tapmate V) 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. 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 RELATED WORK SPECIFIED IN OTHER SECTIONS (CSI Master Format) A. Concrete, welded wire fabric, or reinforcing fibers; Section B. Fireproofing; Section C. Decking; Section D. Electrical; Section & QUALITY ASSURANCE A. Standards 1. This specification establishes the minimum quality of required function, dimension 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. Complete UL listing in the Electrical Construction Materials Directory and compliance with UL 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. 1

2 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 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 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 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. 2

3 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 prepunched 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 "DEEP CELLULAR AND NON-CELLULAR FLOOR UNITS A. Material: The steel floor and deck units and associated accessories shall be fabricated from steel sheet conforming to ASTM A653-94, Grade A or ASTM A with a minimum yield strength of 33 KSI. B. Fabrication 1. All 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 cellular unit shall contain 3 separate cells. 2. Protective Coating shall conform to ASTM A924 G-60 minimum or to ASTM A and Federal Specification QQ-S-775E, Type 1, Class E, conforming to G- 60 minimum coating class and complying with UL Cellular floor units and trench header shall conform as electrical raceways to the requirements of UL 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 floor and 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 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. 3

4 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 floor and deck 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) 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. 4

5 E. A minimum of five square inches of mechanical locking surface of side rail to concrete through keying per lineal inch of side rail shall be provided. Anchoring clips and studs as keying device substitutes are not acceptable. Side rail shall be nominally 1/8" thick and shall provide 3/8" flat width at the screed level to furnish a stop and for seating floor tile respectively. Three inch minimum alignment key extrusion with a one and one half inch minimum alignment surface on each adjacent side rail shall provide horizontal and vertical alignment of the trench. 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 shall not be permitted. H. Edging for Finished Floor Tile shall be vinyl composition with integral cover seating gaskets, 1/8" width on top, with top edging to match floor tile color. 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 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 at any punched opening. Flexible, unformed, stick grommets are not acceptable at any factory punched opening. Cutting of 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 at any punched opening. Flexible, unformed, stick grommets are not acceptable. Cutting of 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. 5

6 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 data showing the capability of the cover plates of a trench header to satisfactorily carry a concentrated static load PRESET OUTLET BOXES A. All preset outlet box shall be UL labeled and shall be three-service type. 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). Openings in top flange of power cell shall be 1-3/4" diameter round. 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 prior to wire pulling. 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. General Description: Boxes shall be formed from one piece of galvanized sheet steel. The minimum thickness of the steel shall be 18 gauge (nominal). The box shall extend between the webs of the outboard cells and cover the depressed cell such that three distinct wire services can be pulled directly into the box. D. Box Capacity: 1. In the activated condition, the preset outlet box shall encapsulate the following minimum volumes of space: Concrete Fill Volume 2-1/2" above cells 325 cu. in. 3-1/4" above cells 355 cu. in. 2. Each box shall accommodate the following electrical devices: a. Four duplex receptacles for power. b. One category 5 AMP-ACO block. c. One duplex RJ-45 outlet. E. Attachment To Cells: Preset outlet boxes shall be attached to the cellular units over the factory punched access holes after cell installation. The attachment shall consist of four separate devices, each of which can resist a static uplift force of 50 pounds. Boxes shall be capable of withstanding a side impact force of 50 PSF without becoming dislodged from the cellular unit. F. Grommetting: All boxes shall be free of sharp edges, notches, or folds which could capture or abrade the insulation of a wire during service life. Grommetting shall consist of one piece molded grommets. 6

7 G. Break-out Pan: Each box shall be fitted with a steel pan fastened to the top of the box to provide for a clean concrete break-out when the box is activated. The pan shall be coated on all surfaces with paint to act as a release agent. Galvanized pans or pans coated with oil will not be allowed. The depth of the pan shall be no greater than 5/8 inch to facilitate concrete break-out. H. Knock-Outs: Each box shall be provided with at least one knock-out for power and one knock-out for low voltage use. I. Afterset Outlets: A U.L. approved multi-service outlet capable of using the same activation covers as the preset outlet must be available for any cellular floor system approved PRESET OUTLET BOX ACTIVATION ASSEMBLIES A. Activation assemblies shall consist of cover assembly, electrical brackets and partitions, grommets, and hardware. 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 force. 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: (select as required) 1. Easy Access Deluxe - One, two, three, or four 15 or 20 amp duplex receptacles plus a single or double duplex modular telephone plate, plus a data interconnect plate shall be furnished. 2. Concealed Sloped - One or two 15 or 20 amp duplex receptacles, plus a single or double duplex modular telephone plate, plus a data interconnect plate shall be furnished. 3. Easy Access Standard - One flush surface mounted plus one or two in-cavity 15 or 20 amp duplex receptacles, plus a single or double duplex modular telephone plate, plus a data interconnect plate shall be furnished. Other options include one 250 volt, or one 30 amp, or one twist-lock surface mounted receptacle. 4. Wired Partition Interface - a. High Voltage - Valox 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 - Available Valox 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. 7

8 5. Above the Floor Multi-Service Outlet - One 15 or 20 amp duplex receptacle, plus one low voltage transition above the floor, and plus the other low voltage connection in the box cavity shall be furnished. B. Activation Cover Options (Specify as required) 1. Easy Access Deluxe - Lexan (KED-NAC) shall consist of a flange ring and separated 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 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 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. 8

9 3. Concealed - Valox (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 (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 (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 Valox cover for either telephone or data. The aluminum head shall accommodate the Above the Floor Multi-Service Outlet Activation Assembly as specified. D. Activation Assembly Selection 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 9

10 ( ) 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 and deck 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 noncompositely. 10

11 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 to fasten sidelaps shall be used 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 the general contractor. 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 CELLULAR FLOOR (ELECTRICAL) SYSTEM INSTALLATION REQUIREMENTS 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. 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. 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. 11

12 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 maintenance. B. Preset Box Installation 1. Permanent concrete release agent shall be applied both to the inside and outside of entry cap, if not already shop applied. 2. Standard boxes shall be secured by four integral snap-locks into separate, prepunched 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. 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, 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: 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." 12

13 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 box breakout covers. *** END OF SECTION *** 13

14 SPECIFICATION KEYS (For Designer reference; do not include with specifications) 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 14

15 2.02 Dual Coated Cover Plates To increase corrosion resistance over single coat applications 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 Roller leveled covers Eliminating the telegraphing of trench after the floor finish is installed Web Holes Minimal effect on deck strength. Top flange holes decrease section properties by 15-40% 2.02 Mechanical Latching User convenience; provide the only truly quiet trench with spring loaded clips duct 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 Ease of wiring; elimination of sharp edges 2.03 Volume Storage capacity, with bottomless trench 2.03 One step preset installation Saves time and money Gauge Preset More construction resistant than min. 20 ga Box Activation Options Maximize activation flexibility 2.03 Activation Interchange Maximize aesthetics and ease of activation for Preset and Afterset 2.03 Duplex receptacles immediately Convenience and flexibility of wiring circuits adjacent in outlet box 15

16 2.03 Lid and support ring made Maximize aesthetics and develop adequate strength from any color Lexan 2.03 Permanent Wire Egress Ports To protect cables from being crimped during service from activation lids 2.03 Activation Covers with positive A real important safety issue-friction type covers finger-type latching can stay open due to wires in the box creating a tripping hazard--friction latch not adequate Load capacity Robertson activation covers are structurally superior 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 Installation Instructions The System functions as intended. 16