GRCA_318719_NR_TWWTP_Spec_Addm_1_0006.pdf

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Addendum #1 TEMPORARY LAB TRAILER

SECTION 10 50 00

TEMPORARY LAB TRAILER

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Temporary laboratory trailer to serve as the Wastewater Treatment Plant Laboratory while the existing facility is renovated.

2. The Contractor is responsible and required to provide everything for a full working system.

a. Sewer and water service will be available on-site.

B. Related Sections include but are not necessarily limited to:

1. Division 0 – Procurement and Contracting Requirements

2. Division 1 – General Requirements

3. Division 26 - Electrical

4. Section 05 50 00 – Metal Fabrications

5. Section 26 41 13 – Lightning Protection System

1.2 QUALITY ASSURANCE

A. Manufacturer Qualifications

1.3 SUBMITTALS

A. Shop Drawings:

1. See Specification Section 01 33 23 for requirements for the mechanics and administration of the submittal process.

2. Product technical data including:

a. Acknowledgement that products submitted meet requirements of standards referenced.

b. Manufacturer’s installation instructions.

c. Wind Anchorage.

d. Equipment

e. Casework

f. Water and Waste Systems

g. HVAC system

3. Drawings:

a. Plan view showing:

1) Arrangement of casework and equipment.

2) Size and location of all openings.

3) Size and location of entry stairs and landings

4) Location of tie downs

5) Minimum plan scale: 1/8 IN = 1 FT.

b. Exterior elevation

c. Interior elevations

4. Calculations:

a. Provide calculations for wind anchorage.

b. Calculations will not be reviewed and are submitted for record purposes only.

c. Calculations shall be sealed by a professional engineer registered in the State of

Arizona.

B. Informational Submittals:

1. Electrical test results.

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1.4 SYSTEM DESCRIPTION

A. Design trailer to support a wide variety of laboratory processes.

1. Provide complete HVAC system, electrical system and water and waste plumbing as specified herein

2. Provide seamless walls and floor to make maintaining and cleaning trouble-free

B. Provide space for and install the following equipment:

1. Dishwasher with heating element.

2. Deionized water unit

a. Install DI system

b. Provide additional tap at one sink for DI water use,

c. Provide additional lines from DI unit to the dishwasher and DI unit

3. Ultra-pure DI unit.

4. Small refrigerator with freezer.

5. Portable fire extinguisher.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Lab-Pro

B. Or equal.

2.2 DIMENSIONS

A. Width of body: 11 FT – 10 IN

B. Length of body hull: 50 FT – 4 IN

C. Overall height (excluding fume hood vents): 13 FT – 8 IN

D. Overall length: 56 FT - 0 IN

E. Finished Ceiling Height: Minimum 8 FT

2.3 CHASSIS

A. Design to support dead loads, including equipment, and minimum live load of 50 LB/SF

B. Entry steps, platforms and ramps:

1. Dimensions: per Code (IBC 2015)

2. Materials: Aluminum or galvanized steel per Section 05 50 00

3. Design loads: per Section 05 50 00

2.4 BODY STRUCTURE

A. Floor System

1. Floor Main Frame: per supplier.

2. Floor Sub-Frame: minimum 3 IN x 2 IN x 20 gage steel rectangular tubing @ 12 IN o.c.

3. Insulation: R-19 Spray Foam

4. Floor Decking: Double layer 4 x 8 T&G

5. Floor coating: 3 part epoxy coating with vinyl paint chip coloring (gray, black and white).

B. Wall System:

1. Wall studs: wood 2” x 6” 16" o.c. with single bottom plate and double top plate.

2. Exterior siding:

a. Steel painted siding or aluminum

1) Smooth, .040 IN thick

2) Painted to match exterior of project shipping containers, EQ Tank, and MBR

Treatment Units.

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Exterior Custom Paint Finish

BEHR ULTRA

BASE: 9853

BEHR ULTRA EXT MATTE FINISH

CUSTOM COLOR MATCH

CLRNT BL CL DL KXL

0Z 16 14 32 6

384th 316 324 72 11

b. Aluminum sheets to be 49" wide for a 1" overlap.

1) Attach to studs with aluminum fasteners

2) Seal each sheet with a VHB double sided tape.

3) Plywood sheathing: minimum 0.5 IN thick

3. Interior:

a. Seamless Fiberglass Reinforced Plastic (FRP)

b. Minimum 0.060 IN thick,

c. Laminate to 0.375 IN plywood

d. Provide with corner joints vinyl trimmed and sealed with a high quality silicone sealant to provide a water proof finish.

4. Insulation:

a. Minimum R-19

b. Fiberglass with Kraft vapor barrier

c. Staple to studs

5. Provide air conditioner return air plenum wall.

C. Roof System:

1. Roof rafters: per supplier

2. Roof covering:

a. One piece 0.045 IN white or black membrane

b. Fully adhered to minimum 0.5 IN BC plywood decking

c. Terminate under a .080 mil finish aluminum mate beam top cap

3. Sub-ceiling: 0.625 IN Type X gypsum board.

4. Insulation: Minimum R-30 fiberglass with Kraft vapor barrier.

5. Ceiling:

a. Suspended T-grid,

b. 2 FT x 4 FT smooth lay-in panels.

6. Provide scuppers with galvanized box painted white and 4" PVC drain pipe at both ends of trailer.

D. Doors:

1. Heavy-duty steel doors with stainless steel hinges.

2. One (1) exterior door

a. 36 IN x 84 IN

b. Door closer,

c. Aluminum kick plate,

d. Lever handle, keyed entry lock.

e. Safety glass viewing window: 24 IN x 36 IN

3. Two (2) exterior double door

a. 60 IN x 84 IN (36 IN/24 IN leafs)

b. Door closer

c. Aluminum kick plate

d. Lever handle, keyed entry lock.

1) Inactive door to have surface mounted latch bolts top and bottom ONLY.

e. Safety glass viewing window: 24 IN x 36 IN in active leaf.

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2.5 WATER SYSTEM

A. Provide complete water and waste plumbing with a single point of connection for each.

B. Water supply piping:

1. Pipe material: Type l copper.

2. 1IN supply entry with ball valve shut off.

3. Include rough in piping and connection to stainless steel sinks, emergency shower and eye wash station.

4. Provide point of use water heaters,

a. Eemax model no.ex75

b. Or equal

C. Emergency Eyewash Stations

1. Provide deck-mounted eyewash stations installed on the right-hand side of each lab sink faucet.

2. Include the following:

a. 6 FT reinforced hose, 750 psi burst pressure,

b. 3/8 IN chrome-plated brass valve

c. Twin aerated spray heads with dust caps.

3. Conform to ANSI Z358.1-1998 standard.

D. Safety Shower:

1. Install overhead safety shower mounted to the ceiling

2. Include the following:

a. 8 IN diameter yellow showerhead,

b. 1 IN NPTF chrome-plated brass ball valve, with stainless steel handle.

3. Conform to ANSI Z358.1-1998 standard.

E. Waste Plumbing

1. DWV system material: polypropylene pipe installed to single point service connection.

2. Minimum one (1) floor drain near emergency shower.

F. Heat trace and insulate all exterior exposed piping

G. Tie in to existing utilities as shown on Drawings

2.6 ELECTRICAL

A. The temporary lab trailer manufacturer shall provide all electrical components for a fully functioning electrical system including but not limited to the items listed in Section 2.6

B. See Division 26 for additional electrical requirements.

C. Provide minimum 400 AMP, 208 V electrical service entry & power distribution system:

1. One (1) 208/120V 3-phase, 4-wire, 400Amp, externally mounted Nema 3R main circuit breaker for power service from transformer T3B.

a. Coordinate onsite power connection point with site contractor.

2. One (1) 120/240 volt 1-phase, 3-wire, 60 Hz. Nema-3R service entry disconnect.

3. One (1) Main distribution load center Nema-1 120/240 volt, 1-phase, 3-wire, 60 Hz.

a. Provide with main breaker and branch breakers.

4. All wiring min. 12 awg type THWN is to be installed in liquid tight flexible conduit or EMT

a. Concealed, but easily accessible for repairs

b. Secure all conduits and fasten at appropriate points to prevent sagging and at all points of bending.

c. All lighting, wiring, switches, and receptacles shall be securely installed, straight and true, and free of loose or faulty connections.

d. Locate wall outlets and other receptacles at convenient points and install uniformly.

5. Two (2) emergency exit lights, with battery back up.

6. Four (4) Exit signs with battery back up.

7. Nine (9) Interior 2' x 4' 4-tube lay in troffer with acrylic diffuser.

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a. Lithonia #2GT 4 40 A12 120 ES or equal.

8. Two (2) Exterior area lights,

a. Integral Motion/Ambient sensor enabled at 1 FC

b. Full “Cut-Off” (Nighttime Friendly) visual comfort type II short distribution optics.

c. Wet Location Rated

9. Two (2) three-way switch for interior lighting.

10. Two (2) Junction boxes for fume hood connection.

11. Wire way series 4000 with (16) duplex outlets mounted above the counter top back splash.

12. Test all wiring and associated equipment

a. Subject wiring and permanently connected devices to a dielectric voltage test of 900 volts for 1 minute.

b. Conduct test between the live parts and the neutral conductor and between the live parts and the trailer frame with all switches in the circuit closed.

D. Coordinate lightning protection system at Temporary Lab building and structure with overall

Temporary Wastewater Treatment Plant Area lighting protection system for a single cohesive protection system per section 26 41 13 - Lightning Protection System.

1. Temporary Lab manufacturer to provide all materials, connections, and appurtenances needed to integrate Temporary Lab building into the overall TWWTP Lightning Protection

System.

E. Fault current calculations shall be completed and provided by the manufacturer to ensure the manufacturer provided electrical equipment interrupting ratings are appropriate.

2.7 HVAC SYSTEM

A. Provide air conditioning and heating system:

1. 100% single pass conditioned air

2. Four (4) wall mounted package A/C units with heat strips and heat pump,

3. Minimum 2.5 ton cooling

4. Provide digital control to maintain temperature and humidity.

a. Include two stage thermostat controls

5. Supply air ducted thru plenum wall and filtered return air via return air filter grilles installed in plenum wall.

B. Ductwork

1. Material: PVC Duct Pipe.

2. Provide zero pressure weather caps on all stacks.

3. Properly support and install stacks to the proper height to avoid any possible down draft.

2.8 CASEWORK

A. Acceptable Manufacturer’s:

1. Laboratory cabinets:

a. VWR

b. Or approved equal.

2. Counter tops:

a. Trespa

b. Or approved equal.

B. Supply and install steel casework, fixtures, and equipment.

1. Provide all fillers, scribes, knee-space panels, and base moldings as needed.

2. Each unit self-contained and complete so that individual units can be relocated at any subsequent time without requiring field application of finished ends or other such parts.

3. Constructed of 18-gauge steel, except as follows:

a. Corner gussets for leveling bolts and apron corner braces: 12-gauge.

b. Hinge reinforcements, case and drawer suspension channels:14-gauge.

c. Top and intermediate front horizontal rails, table aprons, and reinforcement gussets: 16-gauge.

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d. Drawer assemblies, door assemblies and adjustable shelves: 20-gauge

4. Installing Contractor certified by manufacturer.

5. Similar to VWR “Contour” type with standard Glacier White finish

C. Countertops: black chemical resistant phenolic resin with 4" backsplash

1. One (1) inch thick Trespa resin

2.9 EQUIPMENT

A. Metering Instruments

1. Hach PH meter

a. Quantity: Two (2)

b. Supply pH4, pH7 and pH10 buffers in 1L bottles

1) Quantity: Four (4), each

2. Hach Dissolved Oxygen (DO) Meter

a. Quantity: Two (2)

1) Option to supply One Hach pH/DO combo meter in lieu of individual pH and DO meters, two (2)

3. Hach DR300 Pocket Colorimeter with DR Spec Color Standard, DPD Chlorine – LR

Secondary Standard Kit

a. Quantity: Two (2)

4. TSS Meter

a. Quantity: Two (2)

5. DR3900 Spectrophotometer with DR/Check Absorbance Secondary Standards Kit

a. Quantity: Two (2)

6. Turbidimeter

a. Quantity: Two (2)

B. Miscellaneous Lab Equipment

1. Pipettes

a. Quantity: Two (2), per size range

1) 100 - 1000 uL

2) 1- 5 mL

3) Provide additional pipette tips

a) Quantity: 200, per pipette.

2. Class A glassware

a. Quantity: Two (2), per size

1) Volumetric Flasks

a) 50 mL

b) 100 mL

c) 1000 mL

2) Beakers

a) 50 mL

b) 250 mL

3) Graduated Cylinders

a) 100 mL

3. Stir Plate

a. Quantity: Two (2)

4. Settleometer Jars

a. Quantity: Ten (10)

5. Plastic pitchers

a. Quantity: Two (2), per size

1) 2L

2) 1L

3) 50 mL

6. Recirculating water bath

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a. Quantity: Two (2)

b. 44.5 degrees C

c. Thermoscientific Precision Cir 19

1) Or approved equal

7. Long Wave Ultraviolet lamp

a. Quantity: Two (2)

b. 365 nm

8. Idexx Quantitrays with Quantitray Sealer

a. Quantity: Two (2)

9. Idexx Colilert Media

a. Quantity: Two (2), each

b. Colilert – 18

c. Colilert – 24

10. Idexx Colilert Sterile Vessels

a. Quantity: Two (2)

b. Volume: 120 mL, Sodium Thiosulfate

11. Desiccator

a. Quantity: Two (2)

12. Analytical Balance and Weight Set

a. Quantity: Two (2)

13. Standard Lab Oven

a. Quantity: Two (2)

b. Temperature: 105 degrees C

14. Incubator (water sampling)

a. Quantity: Two (2)

b. Temperature: 35 degrees C

C. Fume Hoods

1. Quantity: Two (2)

2. Nominal Width: Five FT

3. Standard fluorescent T8 fixture

4. 115 VAC 20 amp receptacle

5. Dished epoxy resin tops

6. Laboratory sink

7. Provide the following utilities for each fume:

a. Cold water

b. One (1) remote air service fixture hard piped

c. All other utilities Located in a repeated pattern (i.e. the location of the services is same from one fume hood to another

8. Constant Volume System

9. Labconco Protector Premier Series or approved equal

D. Acid and Flammable Storage Cabinets

1. Quantity: One (1), per each

2. Dimensions: per manufactuer.

3. Comply with OSHA and NFPA Code 30 requirements.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Install per manufacturer's written instructions

B. Anchor trailer with tie downs per approved submittal.

C. Connect utilities and test.

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3.2 FIELD QUALITY CONTROL

A. System Supplier shall employ and pay for services of equipment manufacturer’s field service representative(s) to:

1. Inspect equipment covered by this Specification.

2. Supervise pre-startup adjustments and installation checks.

3. Conduct initial startup of equipment and perform operational checks

4. Instruct Owner's personnel for 8 HRS at jobsite on operation and maintenance of HVAC system , Fume hoods and other equipment.

END OF SECTION

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Addendum #1 COMMON WORK RESULTS FOR ELECTRICAL

SECTION 26 05 00

COMMON WORK RESULTS FOR ELECTRICAL

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Basic requirements for electrical systems.

B. Related Specification Sections include but are not necessarily limited to:

1. Division 03 - Concrete.

2. Section 01 61 03 - Equipment - Basic Requirements.

3. Section 03 15 19 - Anchorage to Concrete.

4. Section 26 05 19 - Low-Voltage Electrical Power Conductors and Cables.

5. Section 26 05 48 - Seismic Bracing Systems.

1.2 QUALITY ASSURANCE

A. Referenced Standards:

1. Aluminum Association (AA):

a. ADM, Aluminum Design Manual.

2. American Institute of Steel Construction (AISC):

a. Steel Construction Manual.

3. American National Standards Institute (ANSI).

4. ASTM International (ASTM):

a. A36/A36M, Standard Specification for Carbon Structural Steel.

b. A123/A123M, Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products.

c. A153/A153M, Standard Specification for Zinc Coating (Hot-Dip Galvanized) on Iron and Steel Hardware.

5. Institute of Electrical and Electronics Engineers, Inc. (IEEE):

a. C2, National Electrical Safety Code (NESC).

6. National Fire Protection Association (NFPA):

a. 70, National Electrical Code (NEC).

7. National Electrical Manufacturers Association (NEMA):

a. 250, Enclosures for Electrical Equipment (1000 Volts Maximum).

b. ICS 6, Industrial Control and Systems Enclosures.

8. Underwriters Laboratories, Inc. (UL).

B. Products to be listed by a Nationally Recognized Testing Laboratory (NRTL) in accordance with applicable product standards.

1. Applicable product standards including, but not limited to, ANSI, FM, IEEE, NEMA and

UL.

2. NRTL includes, but is not limited to, CSA Group Testing and Certification (CS), FM

Approvals LLC (FM), Intertek Testing Services NA, Inc. (ETL), and Underwriters

Laboratories, Inc. (UL).

1.3 DEFINITIONS

A. Contracting Officer: Includes the Contracting Officer (CO) and the Contracting Officer

Representative (COR).

B. For the purposes of providing materials and installing electrical work the following definitions shall be used.

1. Outdoor area: Exterior locations where the equipment is normally exposed to the weather and including below grade structures, such as vaults, manholes, handholes and in-ground pump stations.

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2. Architecturally finished interior area: Offices, laboratories, conference rooms, restrooms, corridors and other similar occupied spaces.

3. Non-architecturally finished interior area: Pump, chemical, mechanical, electrical rooms and other similar process type rooms.

4. Highly corrosive and corrosive area: Areas identified on the Drawings where there is a varying degree of spillage or splashing of corrosive materials such as water, wastewater or chemical solutions; or chronic exposure to corrosive, caustic or acidic agents, chemicals, chemical fumes or chemical mixtures.

5. Hazardous areas: Class I, II or III areas as defined in NFPA 70.

6. Shop fabricated: Manufactured or assembled equipment for which a UL test procedure has not been established.

C. The North Rim electrical distribution system is served by Garkane Energy and owned by the

National Park Service. The point of demarcation between Garkane Energy and NPS is at the north park boundary. The electrical distribution system inside the park beyond the demarcation point is owned and operated by the National Park Service.

New electrical distribution equipment and systems are being designed and shall be constructed to match the standards of Garkane Energy.

Coordinate installation of distribution circuits and equipment, and transformers and electrical metering at the North Rim Temporary WWTP with the NPS Park Staff.

1. The serving utility for this Project is Garkane Energy Cooperative, Inc.

a. Contact:

1) Kanab Office: Emal: neal.brown@garkane.com

Phone: 800-747-5403

2. NPS North Rim Park Staff:

a. Contact

1) Park Electrician Name: Josiah Brown

Email: Josiah_Brown@nps.gov

3. Refer to the Drawings for Contractor work scope listing. Generally:

a. North Rim TWWTP:

1) New distribution circuit to the TWWTP site, new padmount distribution transformer with foundation and accessories, new padmounted junction enclosure with foundation and accessories.

2) Installation of required equipment and power circuits at new TWWTP Units, UV

Disinfection Unit, WW Unit, EQ Unit, Hypochlorite / Caustic Storage Container, Citric Room Storage Container, screening channgel, and lift station pumps.

b. Other site locations: Install selected electrical equipment as indicated on the Drawings.

D. Refer to Garkane Electrical Service Requirement Manual for general service requirements:

1. Coordinate with Garkane to obtain Garkane Construction Standards for reference.

1.4 SUBMITTALS

A. See Specification Section 01 33 23 for requirements for the mechanics and administration of the submittal process.

B. Shop Drawings:

1. See Specification Section 01 61 03 and individual specification sections for submittal requirements for products defined as equipment.

2. General requirements:

a. Provide manufacturer's technical information on products to be used, including product descriptive bulletin.

b. Include data sheets that include manufacturer's name and product model number.

1) Clearly identify all optional accessories.

c. Acknowledgement that products are NRTL listed or are constructed utilizing NRTL recognized components.

d. Manufacturer's delivery, storage, handling and installation instructions.

mailto:neal.brown@garkane.com

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e. Product installation details.

f. Short Circuit Current Rating (SCCR) nameplate marking per NFPA 70, include any required calculations.

g. See individual specification sections for any additional requirements.

3. Product technical data:

a. Provide submittal data for all products specified in PART 2 of this Specification

Section.

4. Fabrication and/or layout drawings:

a. Concrete and reinforcing steel, per Division 03 requirements.

C. Operation and Maintenance Manuals:

1. See Specification Section 01 78 23 for requirements for:

a. The mechanics and administration of the submittal process.

b. The content process of Operation and Maintenance Manuals.

D. When a Specification Section includes products specified in another Specification Section, each

Specification Section shall have the required Shop Drawing transmittal form per Specification

Section 01 33 23 and all Specification Sections shall be submitted simultaneously.

1.5 DELIVERY, STORAGE, AND HANDLING

A. See Specification Section 01 67 00 for storage requirements.

B. Protect nameplates on electrical equipment to prevent defacing.

1.6 AREA DESIGNATIONS

A. Designation of an area will determine the NEMA rating of the electrical equipment enclosures, types of conduits and installation methods to be used in that area.

1. Outdoor areas:

a. Wet.

b. Also, corrosive and/or hazardous when specifically designated on the Drawings or in the Specifications.

2. Indoor areas:

a. Dry.

b. Also, wet, corrosive and/or hazardous when specifically designated on the Drawings or in the Specifications.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Subject to compliance with the Contract Documents, refer to specific Electrical Specification

Sections and specific material paragraphs below for acceptable manufacturers.

B. Materials and equipment shall be the standard products of a manufacturer regularly engaged in the manufacture of the products and shall be the manufacturer’s latest standard design that has been in satisfactory use for at least one year prior to installation.

1. Materials and equipment shall conform to the respective publications and other requirements specified below and to the application requirements of NFPA 70

2. Components shall be UL or third-party certified.

C. Submit request for substitution in accordance with Section 01 67 00.

D. Provide all components of a similar type by one (1) manufacturer.

2.2 MATERIALS

A. Electrical Equipment Support Pedestals and/or Racks:

1. Material requirements:

a. Modular strut:

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1) Galvanized steel (hot-dipped): ASTM A123/123M or ASTM A153/A153M.

2) Stainless steel: AISI Type 316.

3) PVC coated galvanized steel: ASTM A123/A123M or ASTM A153/A153M and

20 mil PVC coating.

4) Aluminum: AA Type 6063-T6.

5) Fiberglass: Fire-retardant polyester or vinylester resin, ASTM E84, UL 94.

b. Structural members (e.g., I beams, L and C channels):

1) Galvanized steel (hot-dipped): ASTM A36/A36M steel with galvanizing per

ASTM A123/A123M.

2) Aluminum: AA Type 6061-T6 or 6063-T6.

c. Mounting plates:

1) Galvanized steel (hot-dipped): ASTM A36/A36M steel with galvanizing per

ASTM A123/A123M.

2) Aluminum: AA Type 6063-T6.

d. Mounting hardware:

1) Galvanized steel (hot-dipped).

2) Stainless steel.

e. Anchorage per Specification Section 03 15 19.

f. Concrete and reinforcing steel: See Division 03 specifications.

B. Equipment pads (interior and exterior):

1. Concrete and reinforcing steel: See Division 03 specifications.

C. Field touch-up of galvanized surfaces.

1. Zinc-rich primer.

a. One coat, 3.0 mils, ZRC by ZRC Products.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Install and wire all equipment, including prepurchased equipment, and perform all tests necessary to assure conformance to the Drawings and Specification Sections and ensure that equipment is ready and safe for energization.

B. Install equipment in accordance with the requirements of:

1. NFPA 70.

2. IEEE C2.

3. The manufacturer's instructions.

C. In general, conduit routing is not shown on the Drawings.

1. The Contractor is responsible for routing all conduits including those shown on one-line and control block diagrams and home runs shown on floor plans.

2. Conduit routings and stub-up locations that are shown are approximate; exact routing to be as required for equipment furnished and field conditions.

D. When complete branch circuiting is not shown on the Drawings:

1. A homerun indicating panelboard name and circuit number will be shown and the circuit number will be shown adjacent to the additional devices (e.g., light fixture and receptacles) on the same circuit.

2. The Contractor is to furnish and install all conduit and conductors required for proper operation of the circuit.

3. The indicated home run conduit and conductor size shall be used for the entire branch circuit.

4. See Section 26 05 19 for combining multiple branch circuits in a common conduit.

E. Do not use equipment that exceed dimensions or reduce clearances indicated on the Drawings or as required by the NFPA 70.

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F. Install equipment plumb, square and true with construction features and securely fastened.

G. Install electrical equipment, including pull and junction boxes, minimum of 6 inches from process, gas, air and water piping and equipment.

H. Install equipment so it is readily accessible for operation and maintenance, is not blocked or concealed and does not interfere with normal operation and maintenance requirements of other equipment.

I. Device Mounting Schedule:

1. Unless indicated otherwise on the Drawings, mounting heights are as indicated below:

a. Light switch (to center): 46 inches.

b. Receptacle in architecturally finished areas (to center): 18 inches.

c. Receptacle on exterior wall of building (to center): 18 inches.

d. Receptacle in non-architecturally finished areas (to center): 46 inches.

e. Telephone outlet in architecturally finished areas (to center): 18 inches.

f. Telephone outlet for wall-mounted phone (to center): 46 inches.

g. Safety switch (to center of operating handle): 54 inches.

h. Separately mounted motor starter (to center of operating handle): 54 inches.

i. Pushbutton or selector switch control station (to center): 46 inches.

j. Panelboard (to top): 72 inches.

J. Avoid interference of electrical equipment operation and maintenance with structural members, building features and equipment of other trades.

1. When it is necessary to adjust the intended location of electrical equipment, unless specifically dimensioned or detailed, the Contractor may make adjustments of up to 6 inches in equipment location with the Contracting Officer's approval.

K. Provide electrical equipment support system per the following area designations:

1. Dry areas:

a. Galvanized system consisting of galvanized steel channels and fittings, nuts and hardware.

b. Aluminum system consisting of aluminum channels and fittings with stainless steel nuts and hardware.

c. Field touch-up cut ends and scratches of galvanized components with the specified primer during the installation, before rust appears.

2. Wet areas:

a. Galvanized system consisting of galvanized steel channels and fittings, nuts and hardware.

b. Field touch-up cut ends and scratches of galvanized components with the specified primer during the installation, before rust appears.

3. Corrosive areas:

a. Aluminum system consisting of aluminum channels and fittings with stainless steel nuts and hardware.

b. Stainless steel system consisting of stainless steel channels and fittings, nuts and hardware.

c. PVC coated steel system consisting of PVC coated steel channels and fittings with stainless steel nuts and hardware.

d. Fiberglass system consisting of fiberglass channels and fittings, nuts and hardware and.

4. Highly corrosive areas:

a. PVC coated steel system consisting of PVC coated steel channels and fittings with stainless steel nuts and hardware.

b. Fiberglass system consisting of fiberglass channels and fittings, nuts and hardware.

L. Provide all necessary anchoring devices and supports rated for the equipment load based on dimensions and weights verified from approved submittals, or as recommended by the manufacturer.

1. See Specification Section 03 15 19.

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2. Do not cut, or weld to, building structural members.

3. Do not mount safety switches or other equipment to equipment enclosures, unless enclosure mounting surface is properly braced to accept mounting of external equipment.

M. Provide non-metallic corrosion resistant spacers to maintain 1/4 inches separation between metallic equipment and/or metallic equipment supports and mounting surface in wet areas, on below grade walls and on walls of liquid containment or processing areas such as Basins, Clarifiers, Digesters, Reservoirs, etc.

N. Do not place equipment fabricated from aluminum in direct contact with earth or concrete.

O. Screen or seal all openings into equipment mounted outdoors to prevent the entrance of rodents and insects.

P. Do not use materials that may cause the walls or roof of a building to discolor or rust.

Q. Identify electrical equipment and components with labels.

R. Provide field markings and/or documentation of available short-circuit current (available fault current) and related information for equipment as required by the NFPA 70 and other applicable codes.

S. Provide equipment or control panels with Short Circuit Current Rating (SCCR) labeling as required by NFPA 70 and other applicable codes.

1. Determine the SCCR rating by one of the following methods:

a. Method 1: SCCR rating meets or exceeds the available fault current of the source equipment when indicated on the Drawings.

b. Method 2: SCCR rating meets or exceeds the source equipment’s Amp Interrupting

Current (AIC) rating as indicated on the Drawings.

c. Method 3: SCCR rating meets or exceeds the calculated available short circuit current at the control panel.

2. The source equipment is the switchboard, panelboard, motor control center or similar equipment where the equipment or control panel circuit originates.

3. For Method 3, provide calculations justifying the SCCR rating. Utilize source equipment available fault current or AIC rating as indicated on the Drawings.

T. NPS will provide labels and tags for medium voltage equipment (transformers, switch, splice vaults, pull vaults).

3.2 POWER EQUIPMENT INSTALLATION SEQUENCING

A. Power plan below only includes MV and LV equipment replacement.

B. Contractor to provide separate construction sequencing plan for all related work required for other areas.

C. Contractor to adjust installation sequencing plan as needed for other areas of work related to the project.

D. Prepare all new equipment, power cable conductor, and appurtenances prior to installation.

E. Set all items to be installed at all locations prior to installation and demolition.

F. Trench and install all new power cable conductor prior to demolition and cutover.

G. Coordinate all required power outages with NPS staff.

H. Utilize temporary generators as needed. Receive approval from the Contracting Officer

Representative prior to installation.

I. Sequence:

1. TWWTP Area:

a. Set all proposed equipment prior to demolition and removal of existing MV equipment.

b. Excavate equipment vaults for ESB-13C and transformer T1A.

GRCA - 318719 26 05 00 - 7

c. Trench and pull new MV power cables from ESB-13C to T1A. Terminate power cables with dead front elbow terminations.

d. Install transfer switch and MCB1. Leave MCB1 in the open position.

e. Trench and pull new power cable from T1A to transfer switch and MCB1.

f. Trench and pull new power cable from MCB1 to all facilities. Terminate all power cables at MCB’s and manufacturer provided cable terminals. Leave all MCB’s positions open.

g. Open switch at switch PTS-2 at the Power Distribution Center to isolate ESB-12 and existing power feed to ESB-13.

h. Disconnect power cable feeding ESB-13 at junction enclosure ESB-12 to isolate power feed to ESB-13.

i. Close switch at PTS-2 to reenergize ESB-12.

j. Locate, expose, and pull existing power cable feed to existing WWTP area.

k. Cut and terminate power cable into ESB-13C connecting ESB-13C to ESB-13.

l. Open switch at PTS-2 to isolate ESB-12.

m. Reconnect power cable feeding ESB-13 at junction enclosure ESB-12 to reestablish power to ESB-13.

n. Close switch at PTS-2 to reenergize ESB-12 and ESB-13.

o. Coordinate TWWTP equipment energization with Contracting Officer.

3.3 FIELD QUALITY CONTROL

A. Verify exact rough-in location and dimensions for connection to electrified equipment, provided by others.

1. See Specification Section 01 73 20 for openings and penetrations in structures.

B. Replace equipment and systems found inoperative or defective and re-test.

C. Cleaning:

1. See Specification Section 01 73 40.

D. The protective coating integrity of support structures and equipment enclosures shall be maintained.

1. Repair galvanized components utilizing a zinc rich paint.

2. Repair painted components utilizing touch up paint provided by or approved by the manufacturer.

3. Repair PVC coated components utilizing a patching compound, of the same material as the coating, provided by the manufacturer of the component.

4. Repair surfaces which will be inaccessible after installation prior to installation.

5. See Specification Section 26 05 33 for requirements for conduits and associated accessories.

E. Replace nameplates damaged during installation.

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GRCA - 318719 26 05 33 - 1

Addendum #1 RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS

SECTION 26 05 33

RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Material and installation requirements for:

a. Conduits.

b. Conduit fittings.

c. Conduit supports.

d. Wireways.

e. Outlet boxes.

f. Pull and junction boxes.

B. Related Requirements:

1. Section 26 05 00 - Common Work Results for Electrical.

2. Section 26 05 43 - Underground Work for Electrical Systems.

3. Section 26 27 26 - Wiring Devices.

1.2 QUALITY ASSURANCE

A. Referenced Standards:

1. Aluminum Association (AA).

2. American Iron and Steel Institute (AISI).

3. ASTM International (ASTM):

a. A123/A123M, Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products.

b. A153/A153M, Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel

Hardware.

c. D2564, Standard Specification for Solvent Cements for Poly(Vinyl Chloride) (PVC)

Plastic Piping Systems.

4. National Electrical Manufacturers Association (NEMA):

a. 250, Enclosures for Electrical Equipment (1000 Volts Maximum).

b. RN 1, Polyvinyl Chloride (PVC) Externally Coated Galvanized Rigid Steel Conduit and Intermediate Metal Conduit.

c. TC 2, Electrical Polyvinyl Chloride (PVC) Tubing and Conduit.

d. TC 3, Polyvinyl Chloride (PVC) Fittings for Use with Rigid PVC Conduit and Tubing.

e. TC 14.AG, Aboveground Reinforced Thermosetting Resin Conduit and Fittings.

f. TC 14.BG, Belowground Reinforced Thermosetting Resin Conduit and Fittings.

5. National Electrical Manufacturers Association/American National Standards Institute

(NEMA/ANSI):

a. C80.1, Electric Rigid Steel Conduit (ERSC).

b. C80.3, Steel Electrical Metallic Tubing (EMT).

c. C80.5, Electrical Aluminum Rigid Conduit (ERAC).

d. OS 1, Sheet-Steel Outlet Boxes, Device Boxes, Covers, and Box Supports.

6. National Fire Protection Association (NFPA):

a. 70, National Electrical Code (NEC).

7. Underwriters Laboratories, Inc. (UL):

a. 1, Standard for Flexible Metal Conduit.

b. 6, Electrical Rigid Metal Conduit - Steel.

c. 50, Enclosures for Electrical Equipment, Non-Environmental Considerations.

d. 360, Standard for Liquid-Tight Flexible Metal Conduit.

e. 467, Grounding and Bonding Equipment.

f. 514A, Metallic Outlet Boxes.

GRCA - 318719 26 05 33 - 2

g. 514B, Conduit, Tubing, and Cable Fittings.

h. 651, Standard for Schedule 40, 80, Type EB and A Rigid PVC Conduit and Fittings.

i. 797, Electrical Metallic Tubing - Steel.

j. 870, Standard for Wireways, Auxiliary Gutters, and Associated Fittings.

k. 1203, Standard for Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for

Use in Hazardous (Classified) Locations.

l. 2420, Belowground Reinforced Thermosetting Resin Conduit (RTRC) and Fittings.

m. 2515, Aboveground Reinforced Thermosetting Resin Conduit (RTRC) and Fittings.

1.3 DEFINITIONS

A. Contracting Officer: Includes the Contracting Officer (CO) and the Contracting Officer

Representative (COR).

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Acceptable Manufacturers: Contracting Officer will consider Contractor’s proposal of equivalent products when the specified salient characteristics are satisfied. If the specified salient characteristics are not satisfied, Contracting Officer will return requests without action, except to record noncompliance with these requirements:

1. Manufacturers listed, and other manufacturers not listed, but capable of meeting this

Specification Section, are expected to provide complete information showing full compliance with specifications.

B. Subject to compliance with the Contract Documents, the following manufacturers are acceptable:

1. Rigid metal conduits and electrical metallic tubing:

a. Allied Tube and Conduit.

b. or Equal.

2. PVC coated rigid metal conduits:

a. Robroy Industries.

b. Or Equal.

3. Rigid nonmetallic conduit:

a. Prime Conduit.

b. Or Equal.

4. Flexible conduit:

a. Southwire Company, LLC.

b. Or Equal

5. Wireway:

a. Square D by Schneider Electric.

b. Or Equal

6. Conduit fittings and accessories:

a. Appleton by Emerson Electric Co.

b. or Equal

7. Support systems:

a. Unistrut by Atkore International, Inc.

b. Or Equal

8. Outlet, pull and junction boxes:

a. Appleton by Emerson Electric Co.

b. Or Equal

2.2 RIGID METAL CONDUITS

A. Rigid Galvanized Steel Conduit (RGS):

1. Mild steel with continuous welded seam.

2. Metallic zinc applied by hot-dip galvanizing or electro-galvanizing.

GRCA - 318719 26 05 33 - 3

3. Threads galvanized after cutting.

4. Internal coating: Baked lacquer, varnish or enamel for a smooth surface.

5. Standards: NFPA 70 Type RMC, NEMA/ANSI C80.1, UL 6.

B. PVC-Coated Rigid Steel Conduit (PVC-RGS):

1. Nominal 40 mil Polyvinyl Chloride Exterior Coating:

a. Coating: Bonded to hot-dipped galvanized rigid steel conduit conforming to

NEMA/ANSI C80.1.

b. The bond between the PVC coating and the conduit surface: Greater than the tensile strength of the coating.

2. Nominal 2 mil, minimum, urethane interior coating.

3. Urethane coating on threads.

4. Conduit: Epoxy prime coated prior to application of PVC and urethane coatings.

5. Female Ends:

a. Have a plastic sleeve extending a minimum of one pipe diameter or 2 inches, whichever is less beyond the opening.

b. The inside diameter of the sleeve shall be the same as the outside diameter of the conduit to be used with it.

6. Pass high temperature water PVC coating adhesion test and be ETL Verified PVC-001.

7. Standards: NFPA 70 Type RMC, NEMA/ANSI C80.1, UL 6, NEMA RN 1.

2.3 ELECTRICAL METALLIC TUBING (EMT)

A. Mild steel with continuous welded seam.

B. Metallic zinc applied by hot-dip galvanizing or electro-galvanizing.

C. Internal coating: Baked lacquer, varnish, or enamel for a smooth surface.

D. Standards: NFPA 70 Type EMT, NEMA/ANSI C80.3, UL 797.

2.4 RIGID NONMETALLIC CONDUIT

A. Schedules 40 (PVC-40) and 80 (PVC-80):

1. Polyvinyl-chloride (PVC) plastic compound which includes inert modifiers to improve weatherability and heat distribution.

2. Rated for direct sunlight exposure.

3. Fire retardant and low smoke emission.

4. Shall be suitable for use with 90 degrees C wire and shall be marked "maximum 90 degrees

C".

5. Standards: NFPA 70 Type PVC, NEMA TC 2, UL 651.

2.5 FLEXIBLE CONDUIT

A. Flexible Galvanized Steel Conduit (FLEX):

1. Formed of continuous, spiral wound, hot-dip galvanized steel strip with successive convolutions securely interlocked.

2. Standard: NFPA 70 Type FMC, UL 1.

B. PVC-Coated Flexible Galvanized Steel (liquid-tight) Conduit (FLEX-LT):

1. Core formed of continuous, spiral wound, hot-dip galvanized steel strip with successive convolutions securely interlocked.

2. Extruded PVC outer jacket positively locked to the steel core.

3. Liquid and vaportight.

4. Standard: NFPA 70 Type LFMC, UL 360.

2.6 WIREWAY

A. General:

1. Suitable for lay-in conductors.

2. Designed for continuous grounding.

3. Covers:

GRCA - 318719 26 05 33 - 4

a. Hinged or removable in accessible areas.

b. Non-removable when passing through partitions.

4. Finish: Rust inhibiting primer and manufacturer's standard paint inside and out except for stainless steel type.

5. Standards: UL 870, NEMA 250.

B. General Purpose (NEMA 1 rated) Wireway:

1. 14 or 16 gage steel without knockouts.

2. Cover: Solid, non-gasketed and held in place by captive screws.

C. Watertight (NEMA 4X rated) Wireway:

1. 14 GA Type 304 or 316 stainless steel bodies and covers without knockouts and 10 GA stainless steel flanges.

2. Cover: Fully gasketed and held in place with captive clamp type latches.

3. Flanges: Fully gasketed and bolted.

2.7 CONDUIT FITTINGS AND ACCESSORIES

A. Fittings for Use with RGS :

1. General:

a. Finish: Electrostatically applied epoxy powder coat.

b. In hazardous locations listed for use in Class I, Groups C and D locations.

2. Locknuts:

a. Threaded steel or malleable iron.

b. Gasketed or non-gasketed.

c. Grounding or non-grounding type.

3. Bushings:

a. Threaded, insulated metallic.

b. Grounding or non-grounding type.

4. Hubs: Threaded, insulated and gasketed metallic for raintight connection.

5. Couplings:

a. Threaded straight type: Same material and finish as the conduit with which they are used on.

b. Threadless type: Gland compression or self-threading type, concrete tight.

6. Unions: Threaded galvanized steel or zinc plated malleable iron.

7. Conduit bodies (ells and tees):

a. Body: Zinc plated cast iron or cast copper free aluminum with threaded hubs.

b. Standard and mogul size.

c. Cover:

1) Clip-on type with stainless steel screws.

2) Gasketed or non-gasketed galvanized steel or zinc plated cast iron or cast copper free aluminum.

8. Conduit bodies (round):

a. Body: Zinc plated cast iron with threaded hubs.

b. Cover: Threaded screw on type, gasketed, galvanized steel, zinc plated cast iron.

9. Sealing fittings:

a. Body: Zinc plated cast iron or cast copper free aluminum with threaded hubs.

b. Standard and mogul size.

c. With or without drain and breather.

d. Fiber and sealing compound: UL listed for use with the sealing fitting.

10. Hazardous location flexible coupling (HAZ-FLEX):

a. Liquid tight and arc resistant.

b. Electrically conductive so no bonding jumper is required.

c. Dry and wet areas:

1) Bronze braided covering over flexible brass core.

2) Bronze end fittings.

3) Zinc-plated steel or malleable iron unions and nipples.

GRCA - 318719 26 05 33 - 5

d. Corrosive areas:

1) Stainless steel braided covering over flexible stainless steel core.

2) Stainless steel end fittings.

3) Aluminum unions and nipples.

11. Expansion couplings:

a. 2 inches nominal straight-line conduit movement in either direction.

b. Galvanized steel with insulated bushing.

c. Gasketed for wet locations.

d. Internally or externally grounded.

12. Expansion/deflection couplings:

a. 3/4 inches nominal straight-line conduit movement in either direction.

b. 30 degrees nominal deflection from the normal in all directions.

c. Metallic hubs, neoprene outer jacket and stainless steel jacket clamps.

d. Internally or externally grounded.

e. Watertight, raintight and concrete tight.

13. Standards: UL 467, UL 514B, UL 1203.

B. Fittings for Use with PVC-RGS:

1. The same material and construction as those fittings listed under paragraph "Fittings for Use with RGS " and coated as defined under paragraph "PVC Coated Rigid Steel Conduit (PVC-

RGS)."

C. Fittings for Use with EMT:

1. Connectors:

a. Straight, angle and offset types furnished with locknuts.

b. Zinc plated steel.

c. Insulated gland compression type.

d. Concrete and raintight.

2. Couplings:

a. Zinc plated steel.

b. Gland compression type.

c. Concrete and raintight.

3. Conduit bodies (ells and tees):

a. Body: Copper free aluminum with threaded hubs.

b. Standard and mogul size.

c. Cover:

1) Screw down type with steel screws.

2) Gasketed or non-gasketed galvanized steel or copper free aluminum.

4. Standard: UL 514B.

D. Fittings for Use with FLEX:

1. Connector:

a. Zinc plated malleable iron.

b. Squeeze or clamp-type.

2. Standard: UL 514B.

E. Fittings for Use with FLEX-LT :

1. Connector:

a. Straight or angle type.

b. Metal construction, insulated and gasketed.

c. Composed of locknut, grounding ferrule and gland compression nut.

d. Liquid tight.

2. Standards: UL 467, UL 514B.

F. Fittings for Use with Rigid Nonmetallic PVC Conduit:

1. Coupling, adapters and conduit bodies:

a. Same material, thickness, and construction as the conduits with which they are used.

b. Homogeneous plastic free from visible cracks, holes or foreign inclusions.

GRCA - 318719 26 05 33 - 6

c. Bore smooth and free of blisters, nicks or other imperfections which could damage the conductor.

2. Solvent cement for welding fittings shall be supplied by the same manufacturer as the conduit and fittings.

3. Standards: ASTM D2564, NEMA TC 3, UL 651, UL 514B.

G. Weather and Corrosion Protection Tape:

1. PVC based tape, 10 mils thick.

2. Protection against moisture, acids, alkalis, salts and sewage and suitable for direct bury.

3. Used with appropriate pipe primer.

2.8 ALL RACEWAY AND FITTINGS

A. Mark Products:

1. Identify the nominal trade size on the product.

2. Stamp with the name or trademark of the manufacturer.

2.9 OUTLET BOXES

A. Metallic Outlet Boxes:

1. Hot-dip galvanized steel.

2. Conduit knockouts and grounding pigtail.

3. Styles:

a. 2 inches x 3 inches rectangle.

b. 4 inches square.

c. 4 inches octagon.

d. Masonry/tile.

4. Accessories:

a. Flat blank cover plates.

b. Barriers.

c. Extension, plaster or tile rings.

d. Box supporting brackets in stud walls.

e. Adjustable bar hangers.

5. Standards: NEMA/ANSI OS 1, UL 514A.

B. Cast Outlet Boxes:

1. Zinc plated cast iron with manufacturer's standard finish.

2. Threaded hubs and grounding screw.

3. Styles:

a. "FS" or "FD".

b. "Bell".

c. Single or multiple gang and tandem.

d. "EDS" or "EFS" for hazardous locations.

4. Accessories: 40 mil PVC exterior coating and 2 mil urethane interior coating.

5. Standards: UL 514A, UL 1203.

C. Nonmetallic Outlet Boxes:

1. Polyvinyl-chloride (PVC) plastic compound.

2. Rated for direct sunlight exposure.

3. Fire retardant and low smoke emission.

4. Suitable for use with 90 degrees C wire.

5. Styles:

a. “FS” or “FD”.

b. Single or multiple gang.

6. Standards: UL 514A, NEMA TC 3.

D. See Section 26 27 26 for wiring devices, wallplates and coverplates.

GRCA - 318719 26 05 33 - 7

2.10 PULL AND JUNCTION BOXES

A. NEMA 1 Rated:

1. Body and cover: 14 GA minimum, galvanized steel or 14 GA minimum, steel finished with rust inhibiting primer and manufacturers standard paint inside and out.

2. With or without concentric knockouts on four sides.

3. Flat cover fastened with screws.

B. NEMA 4X Rated (metallic):

1. Body and cover: 14 GA Type 304 or 316 stainless steel.

2. Seams continuously welded and ground smooth.

3. No knockouts.

4. External mounting flanges.

5. Hinged door and stainless steel screws and clamps.

6. Door with oil-resistant gasket.

C. NEMA 4X Rated (Nonmetallic):

1. Body and cover: Ultraviolet light protected fiberglass-reinforced polyester boxes.

2. No knockouts.

3. External mounting flanges.

4. Hinged door with quick release latches and padlocking hasp.

5. Door with oil resistant gasket.

D. Miscellaneous Accessories:

1. Rigid handles for covers larger than 9 square feet or heavier than 25 pounds.

2. Split covers when heavier than 25 pounds.

3. Weldnuts for mounting optional panels and terminal kits.

4. Terminal blocks: Screw-post barrier-type, rated 600 volt and 20 ampere minimum.

E. Standards: NEMA 250, UL 50.

2.11 SPECIAL PURPOSE BOXES

A. Pedestal-Type Floor-Mounted or Counter-Mounted Duplex Receptacles:

1. Horizontal design housing with threaded conduit fittings in base with satin chromium finish.

B. Flush in Floor Duplex Receptacles:

1. Dual level, fully adjustable box with power fitting and brass carpet flange.

2.12 SUPPORT SYSTEMS

A. Multi-conduit Surface or Trapeze Type Support and Pull or Junction Box Supports:

1. Material requirements.

a. Galvanized steel: ASTM A123/A123M or ASTM A153/A153M.

b. Stainless steel: AISI Type 316.

c. PVC coat galvanized steel: ASTM A123/A123M or ASTM A153/A153M and 20 mil

PVC coating.

d. Aluminum: AA Type 6063-T6.

e. Fiberglass: Fire-retardant polyester or vinylester resin, ASTM E84, UL 94.

B. Single Conduit and Outlet Box Support Fasteners:

1. Material requirements:

a. Zinc plated steel.

b. Stainless steel.

c. Malleable iron.

d. PVC coat malleable iron or steel: 20 mil PVC coating.

e. Steel protected with zinc phosphate and oil finish.

2.13 OPENINGS AND PENETRATIONS IN WALLS AND FLOORS

A. Sleeves, smoke and fire stop fitting through walls and floors:

1. See Section 01 73 20.

GRCA - 318719 26 05 33 - 8

B. Smoke and Fire Stop Fittings:

1. 3 hour UL rating.

2. Flanged and segmented.

3. Cast malleable iron mounting frame and pressure plate.

a. Elastomeric sealing material.

b. Steel clamping hardware.

C. Sleeves through walls and floors:

1. Uncoated or galvanized iron or steel:

2. Wall thickness: Not less than standard Schedule 40 pipe.

PART 3 - EXECUTION

3.1 RACEWAY INSTALLATION - GENERAL

A. Shall be in accordance with the requirements of:

1. NFPA 70.

2. Manufacturer instructions.

B. Size of Raceways:

1. Raceway sizes are shown on the Drawings, if not shown on the Drawings, then size in accordance with NFPA 70.

2. Unless specifically indicated otherwise, the minimum raceway size shall be:

a. Conduit: 3/4 inches.

b. Wireway: 2-1/2 inches x 2-1/2 inches.

C. Field Bending and Cutting of Conduits:

1. Utilize tools and equipment recommended by the manufacturer of the conduit, designed for the purpose and the conduit material to make all field bends and cuts.

2. Do not reduce the internal diameter of the conduit when making conduit bends.

3. Prepare tools and equipment to prevent damage to the PVC coating.

4. Degrease threads after threading and apply a zinc rich paint.

5. Debur interior and exterior after cutting.

D. Male threads of conduit systems shall be coated with an electrically conductive anti-seize compound.

E. The protective coating integrity of conduits, fittings, outlet, pull and junction boxes and accessories shall be maintained.

1. Repair galvanized components utilizing a zinc rich paint.

2. Repair painted components utilizing touch up paint provided by or approved by the manufacturer.

3. Repair PVC coated components utilizing a patching compound, of the same material as the coating, provided by the manufacturer of the conduit; or a self-adhesive, highly conformable, cross-linked silicone composition strip, followed by a protective coating of vinyl tape.

a. Total nominal thickness: 40 mil.

4. Repair surfaces which will be inaccessible after installation prior to installation.

F. Remove moisture and debris from conduit before wire is…