ALPLM CITIZEN CITY FABRICATION MANUAL

1.0 FABRICATION

Shop fabrication and tolerances shall conform to the standards of the industry. All items shall be shop fabricated so far as practicable. Perform high-quality, professional workmanship. Attach materials with sufficient strength, number and spacing not to fail until materials joined are broken or permanently deformed. Fabricate all work to be truly straight, plumb, level and square and to sizes, shapes and profiles indicated on the approved shop drawings.

1.1 Shop Assembly

Preassemble items in shop to greatest extent possible to minimize field splicing and assembly.

Disassemble units only as necessary for shipping and handling limitations. Clearly mark units for reassembly and coordinated installation.

1.2 Welding

All welding procedures shall conform to applicable AWS specifications. All welds shall develop capacity of members being joined unless specific length or extent is noted on the drawings.

Type of alloy filler metal and electrodes to be that which is recommended by producer of the metal to be welded, and as required for color match, strength and compatibility in the fabricated items.

1.3 Flatness of Panels

Panels shall show no visual distortion when viewed in installed position. All panel faces shall be of such flatness that when measured, the maximum slope of the surface at point, measured from the nominal plane of the surface, shall not exceed 1.0%. Any panel not meeting these requirements is subject to rejection by the Exhibit Designer.

1.4 Corrosion Protection

Coat concealed metal surfaces which will be in direct contact with concrete, masonry, wood or dissimilar metals, in exterior work, and work to be built into exterior and below grade walls and decks, with a heavy coat of bituminous paint. Do not extend coating onto exposed surfaces.

1.5 Metric Conversion

Stock or standardized materials sized in metric and not equivalent to U.S. standard may be provided if approved.

1.6 Other

Holes for bolts and screws shall be drilled. Parts to receive hardware shall be countersunk.

Fasteners shall be of basic metal and alloy, matching finished color and texture as the metal being fastened, unless otherwise indicated. There shall be no exposed fasteners; all fasteners shall be concealed. Exposed ends and edges shall be milled smooth, with corners slightly rounded. Joints exposed to weather shall be formed to exclude water.

Design components to allow for expansion and contraction for a minimum material temperature range of 100 degrees Fahrenheit, without causing buckling, excessive opening of joints or over-stressing of welds and fasteners. Joints shall be fastened flush to conceal reinforcement or welded where thickness of section permits. Contact surfaces of connected members shall be ground true. Parts shall be assembled so that joints will be tight and practically unnoticeable, without use of filling compound.

Form work to the required shapes and sizes, with true curves, lines and angles. Provide necessary rebates lugs and brackets for assembly of units. Use concealed fasteners wherever possible. Plates for mounting hardware shall be welded in place.

2.0 INSTALLATION

The installation of fixed material shall be under the general direction of the Exhibit Designer in accordance with applicable specifications and layout drawings.

2.1 Preparation

Coordinate setting drawings, diagrams, templates, instructions and directions for the installation of items having integral anchors which are to be embedded in concrete or masonry construction. Coordinate delivery of such items to applicable trades for installation.

2.2 Delivery to Premises

Unless indicated to the contrary, items of loose material shall be delivered, uncrated, assembled, set in proper place and installed ready for use, free from breakage, blemishes or other defects.

2.3 Inspection

Examine the substrate and the conditions under which the materials are to be installed. Do not proceed with the work until unsatisfactory conditions detrimental to the timely and proper completion of the work have been corrected.

2.4 Anchors and Inserts

Furnish inserts and anchoring devices which must be set in concrete or built into masonry for installation of this work. Provide drawings, templates, instructions and directions for installation of anchorage devices. Provide toothed steel or lead shield expansion bolt devices for drilled-in-place anchors and inserts for exterior installation. Provide units with exposed surfaces matching the texture and finish of metal item anchored.

2.5 Cutting, Fitting and Placement

Perform all cutting, drilling and fitting required for installation. Set the work accurately in location, alignment and elevation, plumb, level and true, measured from established lines and levels.

Provide temporary bracing or anchors as required.

Form tight joints with exposed connection accurately fitted with uniform reveals and spaces for sealants and joint fillers. Where cutting, welding and grinding are required for proper shop fitting and jointing of the work, restore finishes to eliminate any evidence of such corrective work.

Do not cut or abrade finishes which cannot be completely restored in the field. Return items with such finishes to the shop for required alterations, followed by complete refinishing or providing new units at Exhibit Fabricator’s option.

2.6 Erection

All surfaces shall be covered with protective cover non-deleterious to finish for protection until final installation or erection. Complete all connections in proper alignment and tighten bolts securely. Leveling is to be done only by instruments; measuring equal distances from existing building surfaces will not be acceptable as a basis of level and/or plumb. After erection, all surfaces marred during erection and exposed bolts, bolt heads, etc., shall be retouched with the same paint used previously.

2.7 Electrical

All electrical lighting and power devices contained within or upon Exhibit devices which are usually included as part of the illumination system of that device such as lamps, sockets, internal wiring, etc. Additionally, the Exhibit Fabricator is responsible for electrical connection only of Exhibit items. Power distribution to required locations shall be the responsibility of the Owner or his designated agent unless otherwise specifically noted on the drawings.

2.8 Protection and Handling of Products

2.8.1 General Precautions

A. Vendor shall store all graphic items under cover and off the ground. Handle in such a manner to protect surfaces and to prevent damage during storage, installation, and throughout remaining construction.

B. Vendor shall protect exposed finishes by covering with adhesive paper or other suitable covering where adhesive is not appropriate for finish material.

C. Vendor shall apply covering prior to shipment from the fabricating or finishing shop.

Covering shall not adversely affect finish.

2.8.2 Protective Coverings

Restore protective coverings which have been damaged during shipment or installation of the work. Remove protection when requested for inspection of finishes and replace. Retain protective coverings intact and remove simultaneously from similar finished items to preclude non-uniform oxidation and discoloration. Remove protective coverings only when there is no possibility of damage from other work yet to be performed at the same location.

2.9 Cleaning of Premises

The Exhibit Fabricator shall use special care in the disposition of excess materials and rubbish.

Rubbish shall not be allowed to accumulate but shall be consistently collected and removed at the completion of this work on a daily basis.

Storage for paint materials, preparation and mixing, shall be in well-lit and ventilated central location but shall not be allowed on finished or carpeted flooring. Ample protection by means of drop cloths or layers of paper must be provided for existing apparatus or parts of the building.

Adequate safeguards shall be provided against fire by placing oils, rags and waste in self-closing metal receptacles and shall be removed from the work and storage area at the end of each work shift. Under no circumstances will they be allowed to accumulate.

3.0 MATERIALS AND FINISHES

3.1 Aluminum

Aluminum used for exposed structural elements shall be T-5 mill aluminum, thickness as shown on the drawings. Aluminum used for concealed framing of Exhibit shall be 6063 T-5 alloy with mill finish.

3.1.1 Extrusions

Shapes and thicknesses as shown and as required to fulfill requirements, but not less than 1/8” (3.2 mm) thick, unless otherwise shown. Suitable alloy and temper for extruding with adequate structural characteristics and suitable for finishing as specified.

3.1.2 Sheets and Plates

Sizes and minimum gauges as shown and as required to fulfill performance requirements.

Suitable alloy and temper for forming and fabrication requirements with adequate temper and structural characteristics and suitable for finishing as specified.

3.1.3 Finishing

Aluminum finishes shall be acrylic polyurethane two-part catalyzed coating system. All coating applications shall be prepared and spray applied in the factory by skilled mechanics. All surfaces shall be mechanically sanded removing all grain lines, striations, and surface blemishes, cleaned with non- abrasive scouring pads, rinsed, and air-dried prior to receiving coatings.

3.1.3.1 Coatings shall be prepared as designated by manufacturer’s latest literature for surface preparation and application but in no case less than one (1) applicable primer coat and two (2) final full coats. All finished surfaces shall be uniform.

3.1.3.2 Colors shall match color designations as indicated on the drawings.

3.1.4 Anodizing

Exterior Application: For a clear anodized (natural) finish use AA-M21C22A41 with a minimum

0.7 mil (0.02 mm). For a color anodized finish use AA-M21C22A42 with a minimum 0.7 mil (0.02mm) to match samples provided by Exhibit Designer.

Interior Application: For a clear anodized (natural) finish use AA-M21C22A31 with a minimum

0.4 mil (0.01 mm). For a color anodized finish use AA-M21C22A32 with a minimum 0.4 mil (0.01

mm) to match samples provided by Exhibit Designer.

3.2 Glass

3.2.1 Plate or Float

Clear: FS DD-G-451, Type I, Class 1, quality q3, 1/4” (6.35 mm) thick, unless otherwise shown.

Tinted (Heat Absorbing): FS DD-G-451, Type I, Class 2, Style B, quality q3. Provide color as shown 1/4” (6.35 mm) thick, unless otherwise shown.

3.2.2 Laminated

Provide laminated glass consisting of two sheets of plate or float glass of thickness required to achieve overall thickness shown, laminated at the factory using the manufacturer’s standard heat/pressure process. Exclude dirt and other foreign materials from the lamination and eliminate all voids and delaminated surfaces.

3.2.3 Tempered

Clear: FS DD-G-001403 kind FT, Condition A, Type I, Class 1, 1/4” (6.35 mm) thick, unless otherwise shown.

Tinted (Heat Absorbing): FS DD-G-001403, FT, Condition A, Type I, Class 2, Style B. Provide color as shown, 1/4” (6.35 mm) thick, unless otherwise shown.

3.2.4 Heat Strengthened

Clear: FS DD-G-001403, Kind HS, Condition A, Type I, Class 1, 1/4” (6.4 mm) thick unless otherwise shown.

Tinted (Heat Absorbing): FS DD-G-0011403, Kind HS, Condition A, Type I, Class 2. Provide color as shown, 1/4” (6.4 mm) thick unless otherwise shown.

3.3 Millwork

3.3.1 Fabrication and Installation

Strictly comply with AWI standards and approved shop drawings. Provide work matching shapes, profiles and sizes indicated. Scribe work to fit with hair line accuracy. Miter and cope all wood joints and moldings. Install in longest available lengths to minimize seams and joints; no finger-jointed wood is acceptable. Securely fasten work to substrates, framing and blocking with concealed fasteners.

When face fasteners are unavoidable, countersink fasteners and fill holes flush to be not noticeable after finishing. Conceal all seams in exterior panels with wood trim.

3.3.2 Tolerances

Do not exceed the following maximum acceptable installation tolerances, except where tighter tolerances are specified in AWI standards:

A. Allowable Variation from True Plumb and Level: 1/8” in 20’ B. Allowable Variation from True Plane: 1/8” in 10’ C. Allowable Variation from True Alignment: 1/8” in 10’ D. Allowable Variation from True Flush at Joints: Joints shall be invisible after painting.

3.3.3 Wood for Paint Finish

Provide Pine or Poplar interior door frames, miscellaneous wood and moldings complying with AWI Premium Grade requirements. Provide solid stock; glued pieces and finger-jointed pieces are not acceptable. Provide tempered hardboard pegboard with four assorted hangers for each square foot of pegboard area.

3.3.4 Plastic Laminated Work

Provide NEMA LD-3 laminate complying with AWI Premium Grade materials and workmanship.

Provide 0.050” horizontal grade with colors and textures as selected by Architect from industry available choices. Provide minimum 42-pound density particle board core and laminate balancing sheets.

3.3.5 Fasteners

Provide nails, screws, and fasteners appropriate for intended use.

3.4 Photopolymer

3.4.1 Fabrication

Graphics to be mechanically photo-etched from original artwork and Grade 2 Braille. Graphic relief raised 1/32” from background. Graphics to be integral with the background. Individually applied and hand-spaced graphics are not acceptable.

Graphic sign panels to be laminated to an acrylic back-up panel (.125” or .250”). Corners (square and round) with edges routed. Panel assembly to be mounted with double-sided tape and silastic adhesive.

3.4.2 Finishes

Graphic sign panel background to be painted with a matte acrylic enamel or polyurethane type paint as required by the manufacturer. Raised graphic surfaces to be screened acrylic enamel or approved screening enamel compatible with the background finish. Braille to be the same color as the background.

3.5 Plastics

3.5.1 Acrylics

Provide acrylic plastics in sizes as shown. Provide colors as shown, or as selected by the Exhibit Designer.

3.5.2 Laminates

NEMA LD-3 horizontal grade, in colors and patterns shown, or as selected by the Exhibit Designer.

3.6 Rigid PVC Board (Thermoplastic Sheet)

Thermoplastic (PVC) sheet shall be of thickness and sizes shown, formed to profiles and shapes indicated on the drawings. All exposed edges shall be filed smooth and finished with proper grit.

3.6.1 Adhesives

Where thermoplastic (PVC) sheet is to be bonded to itself or other substrates solvents or solvent- dispersed adhesives such as THF (Tetra Hydro Furan), Cyclohexanone, or MEK (Methyl Ethyl Ketone) based types shall be used. Prior to adhesive applications both surfaces to be joined must be clean, degreased and dry. The pretreatment procedure shall consist of wiping surfaces with isopropyl alcohol with non-colored cloth and allowing surfaces to properly dry.

3.6.2 Coatings

All surfaces shall be prepared to receive coatings or surface finishes according to manufacturer’s latest for surface preparation and application but in no case less than one (1) applicable primer coat and two (2) final full coats. All finished surfaces shall be uniform.

3.6.3 Other

Thermoplastic polyvinyl chloride (PVC) sheet shall be expanded PVC (polyvinyl chloride) foam.

3.7 Rough Carpentry

3.7.1 Lumber

Provide Construction Grade or No. 2 Grade lumber complying with PS 20.

A. Decay Treated: Provide above ground lumber in contact with roofing, flashing, sheet metal, masonry concrete, damp-proofing and waterproofing that is pressure-treated with waterborne preservatives complying with AWPB LP-2 and AWPA C2. Dry lumber to maximum moisture content of 19% after treatment.

B. Fire-Retardant Treated: For all interior blocking, provide lumber which is UL labeled fire-retardant FR-S. Dry lumber to maximum moisture content of 19% after treatment.

3.7.2 Plywood

Provide APA trademarked Exposure 1 C-D veneer performance rated plywood panels with span rating for span indicated if thickness is not shown. Provide UL listed Class A fire-retardant treated plywood for telephone and electrical mounting panels and all interior plywood.

3.7.3 Plywood Backing Panels

Provide APA trademarked, UL labeled, fire-retardant treated, C-D Plugged Exposure 2 panels not less than 5/8” thick and complying with PS 1. Provide treatment that yields a flame spread rating of not more than 25 when tested according to ASTM E84.

3.7.4 Fasteners

Provide nails, screws, and fasteners appropriate for intended use.

3.7.5 Wood for Paint Finish

Provide Pine or Poplar interior door frames, miscellaneous wood and moldings complying with AWI Premium Grade requirements. Provide solid stock; glued pieces and finger-jointed pieces are not acceptable. Provide tempered hardboard pegboard with four assorted hangers for each square foot of pegboard area.

3.8 Signage

3.8.1 Foam Boards

Signage graphic substrate made of HDU (High Density Urethane) shall be used on signage within the exhibit. The foam board shall be waterproof, impervious to cracking, rotting, warping, bowing, or decaying, and able to withstand a high traffic environment. Foam board shall be finished with an opaque paint.

3.9 Stainless Steel

3.9.1 Alloys

Provide alloys 302 or 304 for interior applications and alloy 316 for exterior applications, as established by American Iron and Steel Institute (AISI) unless shown otherwise. In addition, comply with the following requirements:

A. Extrusions: ASTM A 167 B. Bar Stock: ASTM A 267 C. Plate: ASTM A 167 D. Tubing: ASTM A 269 E. Castings: ASTM A 296, iron-chromium-nickel alloy

3.9.2 Finishes

Unless otherwise shown or specified, provide stainless steel finishes to match Owner approved samples, and as follows (AISI designations):

A. Matte: No. 2D B. Directional/Bright: No. 4 C. Directional/Satin: No. 6 D. Directional/Highly Reflective: No. 7 E. Non-directional/Mirror Reflective: No. 8

3.10 Steel

3.10.1 Materials

A. Structural Steel Shapes and Plates: ASTM A 36 B. Steel Plate for Cold Forming: ASTM A 283, Grade C C. Hot Rolled Steel Bars: ASTM A 108, Grade as selected by fabricator.

D. Steel Pipe: ASTM A 53, Type E, F or S, at fabricator’s option, Grade A, black finished unless shown as galvanized, standard weight (Schedule 40) unless otherwise shown or specified.

E. Hot-Formed Rectangular Steel Tubing: ASTM A butt welded, cold finished and stress relieved.

F. Cold-Drawn Steel Tubing: ASTM A 512, sunk drawn, butt welded, cold finished and stress relieved.

G. Steel Sheet for Cold Forming: ASTM A 569, hot-rolled sheet steel of commercial quality, pickled and oiled, free of defects which would impair the work.

H. Galvanized Steel Sheet: ASTM A 526, commercial quality.

3.10.2 Finishes

A. Chrome Plated: ASTM B 456, Type SC-2 over a coating of copper and nickel. Provide a bright polished finish unless otherwise shown.

B. Lacquer Finish:

C. Acrylic Lacquer: Improved clarity and non-yellowing properties D. Catalyzed Lacquer (Pre- or Post-Catalyzed): Enhanced chemical and abrasion resistance through added hardeners

4.0 MISCELLANEOUS PRODUCTS

4.1 Adhesives

4.1.1 Foam Tape

1/16” (1.6 mm) thick, double-faced, white pressure sensitive urethane foam adhesive tape

4.1.2 Film Tape

4 mil (0.1 mm) thick, double-faced pressure sensitive film tape.

4.1.3 Silicone

FS TT-S-001543, Class A

4.1.4 Epoxy

Two component thermosetting epoxy adhesive with 100% solids content.

4.2 Fabric Material

4.2.1 Tensioned Fabric

4.2.2 Material

A. Fabric: Typically made of 230gsm or 260gsm polyester fabric, chosen for its stretch, durability, and print quality with dye sublimation.

B. Frame Compatibility: Designed to fit securely over specific aluminum tube frames with varying diameters (e.g., 32mm or 1-1/4″).

4.2.3 Graphic

A. Dye Sublimation Printing: Utilizes advanced dye sublimation technology for vibrant, fade-resistant, and high-resolution graphics.

B. Live Area Considerations: Crucial information or artwork should be placed 3 to 5 inches away from the edges to avoid distortion when stretched over the frame.

C. Pillowcase Style with Zipper Closure: Slips over the frame and is secured with a zipper, providing a snug fit and a polished appearance.

4.3 Vinyl

This specification defines basic materials and fabrication methods for markings/graphics to be used by the Exhibit Fabricator for cut out graphics. No deviation from these specifications is permissible without the written approval of the Owner or Exhibit Designer. The Exhibit Fabricator shall certify that all markings/graphics conform to these specifications and will be replaced without additional cost to the Owner if they fail to meet this requirement.

4.3.1 Non-Reflective

Non-reflective vinyl is a pressure-sensitive, flexible PVC film designed for the production of cut or printed graphics that require a matte, glare-free finish. It is commonly used in exhibit environments where legibility under controlled lighting and minimal surface reflectivity are critical.

4.3.2 Reflective Vinyl (Graphic Applications)

Reflective vinyl is a retroreflective, pressure-sensitive film designed to enhance visibility by reflecting light back toward its source. It is used in graphic applications where increased visibility, contrast, and legibility under low-light or directional lighting conditions are required.

4.3.3 Pressure Sensitive

Cut vinyl to be 1.8 mil (0.89) thick, pre-spaced and pre-aligned on transfer paper. Provide vinyl graphics in colors and type styles shown.

4.3.4 Letterforms

Size: Letterforms shall be as shown or indicated on the drawings and shall be the only typography used. Letter size for the appropriate sign types shall be as shown on the drawings and graphic layouts. Alternate letterforms and letter size will not be accepted.

Spacing: Letter spacing shall be at the standard optical spacing. Spacing between words shall equal the horizontal dimension of a lower-case “m” for the size of the copy being used. The Exhibit Fabricator shall furnish to the Exhibit Designer for approval, a full-size spacing pattern for each message specified. No work shall be executed from spacing patterns not approved by the Exhibit Designer.

4.3.5 General Requirements

A. Color, copy and logotype rendition shall be approved by Owner or Exhibit Designer prior to production.

B. Graphics shall be weather-resistant and shall not be affected by oil, water, salt spray, or alcohol.

C. Where specifically noted, provide reverse cut copy for application to glass. All other applications shall be “correct-reading” on the exterior of glass.

D. Size, colors and shape of markings to be fabricated in accordance with 3M Product

Specs for each item. Marking shall be in accordance with 3M Instruction Bulletin No. 5.

E. All cut edges (i.e. laser, kiss cut, guillotined, etc.) shall be smooth and free of ragged areas.

F. Markings shall be packaged in substantial cartons which will protect against physical damage in shipping and handling and against dirt or moisture contamination.

4.4 Wall Vinyl, printable

4.4.1 Material

Printable wall mural vinyl to be a digitally printable, pressure-sensitive wall covering material designed for large-format graphics and environmental installations. It must provide a durable, dimensionally stable surface capable of receiving high-resolution printed imagery while maintaining strong adhesion to wall substrates and a consistent visual appearance.

Material Characteristics:

A. Composition: PVC or PVC-free polymer film with integrated print-receptive coating B. Finish: Suede C. Weight/Type: Commonly Type II (20 oz) commercial-grade wallcovering for high-traffic environments D. Adhesive: paste-applied backing designed for long-term interior use E. Opacity: Opaque to conceal wall surface variations F. Fire Rating: Class A fire-rated (ASTM E84) when required

G. Printing Compatibility:

1. Compatible with UV, latex, eco-solvent, and solvent digital printing technologies.

2. Supports high-resolution graphics, photography, and color-rich imagery.

3. Coating to be designed for ink adhesion, color vibrancy, and durability.

4.5 Polystyrene

A. Material: HIPS (High-Impact Polystyrene) B. Color: As required for application C. Printing: Direct-to-Substrate (DTS) printing, or Direct-to-Film (DTF) printing D. UV Resistance required.

5.0 PAINTS AND COATINGS

5.1 Acrylic Polyurethane

High-performance, catalyzed acrylic polyurethane coating system suitable for exhibit and graphic applications.

Exhibit Fabricator shall be approved by the manufacturer for application of paint or coating system. Exhibit Fabricator shall apply paint system strictly observing the manufacturer’s recommendations regarding application technique using internal mix conventional spray equipment. Apply as to achieve 100% coverage at the rate of 150 square feet per gallon or as manufacturer recommends.

Overall appearance must match specified color and pattern of submitted sample. Pattern and sheen should be uniform. If primer is visible through paint when inspected, paint coverage will be considered incomplete and disapproved by the Owner or Exhibit Designer. Should the Owner or Exhibit Designer disapprove of the applied coating, the Exhibit Fabricator shall bear all costs to complete paint finish.

5.2 Bituminous Paint

Cold-applied asphalt mastic for isolating dissimilar metals.

5.3 Paint Enamels

Provide high quality sign lettering paints; colors to match those specified and applied per manufacturers instruction regarding application techniques. Apply to achieve 100% coverage at manufacturers recommended rate of coverage per gallon.

5.4 Polyurethane Enamel

Provide an aliphatic polyurethane enamel with ultraviolet inhibitors, lightfast, weather abrasions and wear resistant.

6.0 ELECTRICAL

The work covered by this section shall include all labor, equipment, supplies and materials necessary for the installation of the complete electrical system as shown or indicated on the accompanying plans and specified herein.

Electrical work shown or implied on the construction drawings, and discussions hereinafter shall include the purchase, fabrication, installation and connection of electrical apparatus for the appropriate Exhibit elements as part of the Owner’s contract.

It is the intent of these documents that the entire electrical installation shall be complete in every respect and any minor items, omitted but obviously necessary to accomplish this intent, shall be furnished and installed.

6.1 Codes, Regulations and Standards

All local fees, permits and services of inspection authorities shall be obtained and paid for by the Exhibit Fabricator. The Exhibit Fabricator shall cooperate fully with the local utility company with respect to their services.

The electrical installation shall be in compliance with the requirements of the latest edition of the National Electrical Code, O.S.H.A., and the rules and regulations of the power company supplying power to the building or facility.

The electrical installation and the Exhibit Fabricator shall comply fully with all City, County, and State laws, ordinances and regulations applicable to electrical installations as identified by this contract.

It shall be understood during the bidding process that the power source for all electrified Graphics shall be 277 volts.

It is the intent of these specifications to establish quality and performance standards of materials and equipment installed; hence, specific items are identified by manufacturer, trade name and catalog designation where possible. Should the Exhibit Fabricator propose to furnish materials and equipment other than those specified as permitted by the “or approved equal” clauses, he shall submit as a separate request.

6.2 Progress of Work

The Exhibit Fabricator shall not do any cutting, channeling, chasing or drilling of unfinished masonry, tile, etc., unless he first obtains permission from the Owner or Owner’s Representative. If permission is granted, the Exhibit Fabricator shall perform this work in a manner approved by the Owner or Owner’s Representative.

The work shall be carefully laid out in advance. Where cutting, channeling, chasing or drilling of floors, walls, partitions, ceilings or other surfaces is necessary for the proper installation, support, or anchorage of raceway, outlets or other electrical equipment, the work shall be carefully done. Any damage to the building, piping, equipment or any defaced finish plaster, woodwork or metal work shall be repaired by skilled mechanic of the trades involved at no additional cost to the Owner.

The Exhibit Fabricator shall coordinate his work so as to conform to the progress of the work of other trades and shall complete the entire installation as soon as the condition of the building or project area will permit. Any cost resulting from defects or delay of work performed under this section shall be borne by the Exhibit Fabricator.

The Exhibit Fabricator shall keep a separate set of electrical drawings at the job site and record all changes and revisions in red color. At completion of the job, the Exhibit Fabricator shall return all copies of the drawings, including all changes and revisions, to the Owner and Exhibit Designer.

6.3 Lighting

Furnish and install all lighting equipment described in the specifications and shown on the drawings. Lighting equipment shall be installed complete, including suspensions of proper lengths, sockets, holders, reflectors, ballasts, lamps, etc., all wired, assembled and ready for operation. All fixtures should straight and true with reference to sign supporting structural members. Before final acceptance, adjust and direct all fixtures as instructed by the Exhibit Designer.

All lighting fixtures shall bear the U.L. label for its application, be free of light leaks, warps and dents. When utilizing ballasts, they shall be designed and constructed so that the ballast case temperature will not exceed the U.L. 90° Centigrade limit in a 25° Centigrade ambient. All fixtures requiring internal illumination shall illuminate evenly without “hot spots”.

6.4 Grounding

All electrical neutral conductors, raceways and non-current carrying parts of electrical equipment and associated enclosures shall be grounded in accordance with the National Electrical Code (N.E.C.). This shall include neutral conductors, conduits, supports, cabinets, boxes, ground buses, etc.

A. The neutral conductor shall be grounded at one (1) point only: its transformer ground source. The neutral ground source shall be the nearest continuous, metallic, cold-water pipe within the building.

B. The neutral conductor shall be connected from the service to the neutral ground source by a continuous (unspliced) Class B stranded copper conductor installed in rigid conduit.

The connection to the neutral ground source shall ground the conductor and associated conduit by means of a solderless connector approved for the purpose.

C. The neutral ground conductor shall follow the shortest path between the service and the neutral ground source. All contact surfaces shall be thoroughly cleaned prior to final connections. The connection to the neutral ground source shall be visible for inspection at all times. Where the cold-water meter is provided, the meter shall be jumpered by bonding wraps of equal cross-sectional areas to the main ground conductor.

D. Provide a 3/4” x 10’-0” driven ground rod(s) bonded to water piping system by No. 6 (minimum) bare copper conductors, and to the main distribution center in accordance with Paragraph 250-84 or the N.E.C.

E. An equipment grounding conductor with green colored identification, sized in accordance with Table 250-95 of the N.E.C. shall be installed in all flexible metallic conduit or any non-metallic raceway for the entire length of the system. The equipment ground conductor shall be connected to a separate equipment ground bus in the circuit originating panel board, switchboard, etc. Connect ground wire to equipment ground terminal of all devices. Provide ground bonding jumper from grounding terminal of three

(3) wire receptacles to outlet box where ground wire is not pulled.

6.5 Raceways and Wiring

All wiring shall be installed in conduit. Use corrosion resistant rigid steel with PVC coating or heavy wall PVC in earth or in slabs where slabs are in contact with earth. Provide rigid steel cells coated with PVC where PVC raceways are used. For conduit runs 2” in diameter and larger in earth or in slabs in contact with earth, P.V.C. raceways with 4” concrete envelopes may be used. Provide rigid PVC coated steel elbows and conduits for stub-ups above grade.

Direct burial runs may be installed where located outside the building, under asphalt paving, and under grass or bare earth where noted. Enclose conductors in rigid galvanized PVC, coated, or PVC conduit where runs enter outlet boxes, concrete pole bases, under concrete walks, or embedded in concrete slabs or masonry walls.

A. Conduits shall be of the size required by and installed according to the N.E.C. Bends shall be made with approved hickey or conduit bending machine. Provide support in accordance with N.E.C. requirements.

B. Maximum size conduit allowed in floor slabs above grade shall be 1” unless written permission is obtained from the Structural Engineer. All secondary conductors to be buried a minimum of 30” below finished grade. Provide 2” sand fill above and below conductors and install treated or redwood board.

C. Exposed conduit shall not be installed in finished areas. Exposed conduit may be installed at surface mounted equipment and at other locations approved by the Owner.

All exposed conduit shall be run parallel to or at right angles to building lines.

D. In locations where mechanical damage may be incurred, or on roofs, corrosion resistant rigid steel or intermediate metal conduit shall be used except heavy wall aluminum may be used in dry locations where exposed. No aluminum conduit shall be used in walls or concrete. Electric metallic tubing or intermediate metal conduit may be used in all other applications.

E. Use approved type couplings and connectors in all conduit runs, and make all joints tight. Provide insulated bushings for all terminations in pipe sizes 11/4” and larger.

Provide a premium quality metal casting type of compression gland coupling for all other concealed or exposed conduits. Set- secure type couplings will be permitted for exposed EMT conduits only. Provide expansion fittings and bonding conductors for all runs which cross building expansion joints. Provide waterproof fittings for all runs in we locations, such as exposed to weather, buried in slabs, etc. Provide seal-off fittings where conduits enter or leave a hazardous area, or areas of widely different temperature and/or humidity.

F. No wire shall be installed until work which might cause damage to the conductors has been completed. Prior to pulling of the conductors, conduits shall be swabbed clean of all foreign matter or replaced where such accumulation cannot be removed by approved methods.

6.6 Identification of Equipment

Legible and complete wiring and circuitry diagrams, lamp sizes and wattage and any special operating or replacement instructions are to be provided on waterproof paper and firmly affixed to the interior of Exhibit access panels. Identify all applicable circuits in branch circuit panel boards with a typewritten directory mounted behind clear plastic and fastened to inside of panel door.

6.7 Inspections, Tests, and Guarantees

All work shall be subject to inspection by the Owner, the Owner’s Representative and the Exhibit Designer at all times and in the event of questionable work, their decision will be final.

After the electrical installation is completed and at such times as the Owner or the D.C.D.O.

may direct, the Exhibit Fabricator shall conduct an operating test for approval. The installation shall be demonstrated to be in accordance with the requirements of this specification. Any defects revealed shall be corrected promptly and the test reconducted, at no additional cost to the Owner.

All electrical work and all items of equipment and materials shall be guaranteed for a period of one (1) year from the date of the final inspection and acceptance of the work. The Exhibit Fabricator shall be notified in writing of any defective items and shall repair or replace such items promptly without cost to the Owner.

7.0 SUBSTITUTIONS

7.1 Substitutions After Contract Award

Any substitutions requested after the award of the contract will be considered only under these cases:

A. When the specified product is not available.

B. When a certain product or process is specified, a warranty of performance is required, and, in the judgement of the Exhibit Fabricator, the specified product or process will not produce the desired results.

C. When such substitution, in the opinion of the Exhibit Designer, is in the best interest of the Owner.

7.2 Requests for Substitution

Request for substitutions of products, materials or processes other than those specified will be accompanied by the evidence that the proposed substitution:

A. Is equal in quality and serviceability to the specified item;

B. Will not entail changes in details and construction of related work;

C. Will be acceptable in consideration of the required design and artistic effect;

D. Will provide a cost advantage to the Owner.

The Exhibit Fabricator shall furnish with the request such drawings, specification samples, performance data, and other information as may be required to assist the Exhibit Designer in determining whether the proposed substitution is acceptable. The burden of proof shall be upon the Exhibit Fabricator.

7.3 Substitution Guarantees

Regardless of the evidence submitted or any review or independent investigation by the Owner or the Exhibit Designer, a request for a substitution of products, materials, or processes is a warranty by the Exhibit Fabricator to the Owner and Exhibit Designer that the requested substitution:

A. Is equal in quality and serviceability to the specified item;

B. Will not entail changes in details and construction of related work;

C. Will be acceptable in consideration of the required design and artistic effect;

D. Will not involve any change in cost to the Owner other than that specified in an accompanying request for a change order.

7.4 Timeline for Substitutions

Proposed substitutions will be made within five (5) days after the award of the contract, except when circumstances are beyond the Exhibit Fabricator’s control. Submit requests for substitutions to the Exhibit Designer in writing, giving sufficient information and samples for evaluation with the difference in costs, if any. Substitution must be approved in writing by the Exhibit Designer and the Owner before they may be used.

2.9 Cleaning of Premises

4.5 Polystyrene