Attachment_4 _260050_BasicMethodsAndMaterials-20140507.pdf

USDA Forest Service Project Specifications

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Basic Methods and Materials

SECTION 26 00 50

BASIC MATERIALS AND METHODS

1. PART 1 – GENERAL

1.01 REFERENCE DOCUMENTS

A. See 26 00 10 General Technical Provisions

B. 26 09 13 Advanced Meter Systems

C. 27 00 00 Telecommunications Wiring Systems

1.02 DESCRIPTION

A. Furnish all new materials of latest standard design, which are the standard product of manufacturers who regularly engage in the production of such equipment. Provide material of the same type or classification and used for the same purpose of the same manufacturer.

Furnish materials, equipment, and devices approved by the Underwriters Laboratories, Inc., for the purposes for which they are used. Certain classes of materials used are not within the scope of UL Reexamination Services; therefore, this does not apply when not applicable.

1.03 SUBMITTALS

A. Submit shop drawings and equipment catalog data and manufacturer's installation operating and maintenance instructions for approval of the following items in accordance with

Sections 01 30 00 and 26 00 10:

B. Provide both hard copy and manufacturer’s original PDF files with submittals in electronic form with items marked to be submitted with all accessories.

1. Disconnect Switches and Fuses

2. Over current Devices, including ground fault interrupting circuit breakers.

3. Panel boards and Circuit Breakers (shop drawings of panel boards with all breakers).

4. Conduit and Raceways

5. Outlet Boxes

6. Pull and Junction Boxes

7. Conduit Fittings

8. Switches, Receptacles and Plugs

9. Conductors

10. Wire Number Tags

11. Insulated Terminal Ends

12. Equipment Support Details

13. Perforated Mounting Channel, Interior and Exterior

2. PART 2 - PRODUCTS

2.01 THERMAL-MAGNETIC CIRCUIT BREAKERS (INDIVIDUALLY MOUNTED)

A. F.S. W-C-375B

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B. Furnish molded case, trip-free, quick-make, quick-break, thermal-magnetic type with handles clearly indicating rating and position "ON", "OFF", or "TRIPPED".

C. Unless otherwise noted, provide individually mounted breakers in sheet steel enclosure, NEMA Type 1, except in wet locations or indicated as weatherproof, in which case a

NEMA Type 3R or 4 enclosure as required or shown on the drawings. Breakers to be padlockable in "OFF" position.

D. For individual mounting, provide circuit breakers with an interrupting rating not less than the available fault duty at the breaker. Where the estimated available short circuit current is indicated on the drawings, provide devices and rating not less than the indicated fault duty.

Where the available short circuit current is not otherwise indicated, provide the following minimum device ratings:

TRIP FRAME UL LISTED IC's

RMS SYMMETRICAL

15A to 100A 100A Frame 18,000 A. @ 240 V

125A to 225A 225A Frame Interchangeable Trip 25,000 A. @ 240 V

250A to 400A 400A Frame Interchangeable Trip 42,000 A. @ 240 V

2.02 CONDUIT AND RACEWAY

A. Rigid Galvanized Steel Conduit ANSI C80.1.

B. Intermediate Metal Conduit (ANSI C80.3)

C. PVC Coated Rigid Galvanized Steel Conduit Rigid galvanized steel conduit with external

PVC coating approximately .040" thick coating: conform to NEMA RN1-1974, Type A.

Provide fittings with PVC coating as above.

D. Electrical Metallic Tubing ANSI C80.3.

E. Galvanized Flexible Metallic Conduit ANSI/NFPA 70.

F. Flexible Metallic Conduit ANSI/NFPA 70.

G. Liquid-tight Flexible Metallic Conduit ANSI/NFPA 70 additionally provide liquid-tight flexible conduit, zinc-coated steel core, extruded gray PVC cover, U.L. approved.

2.03 OUTLET BOXES

A. Provide metallic outlet boxes as follows unless otherwise noted or detailed. Nonmetallic boxes will not be permitted.

1. Outlet and Switch and Junction Box Types Provide the following types of outlet and switch boxes in locations listed unless otherwise shown on drawings.

CONDUIT SYSTEM NEMA 1

Pressed Metal

NEMA 3 & 4

Cast Boxes with Threaded

Hubs

EMT systems not exposed to weather X X

IMC or RGC systems nonhazardous locations

X

IMC or RGC systems hazardous

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Nonhazardous boxes exposed to weather, EMT, RGC or IMC systems

X

B. Exposed Boxes

1. Boxes exposed to weather, wet locations, hazardous locations, rigid conduit or EMT systems threaded hubs and case gasketed cover, meeting F.S. W-C-586. Any type, design, form, and style will be acceptable unless otherwise specified or shown on the drawings.

2. Boxes in other locations shall be corrosion resistant finish meeting F.S. W-J-800.

3. Catalog numbers shown below are Appleton Electric Company. Similar products of other manufacturers are equally acceptable.

C. EMT Systems (dry locations) (NEMA 1)

1. Switch, Receptacles, and Junction -No. 4S-3/4 with extension ring

Boxes (Flush or exposed dry if required.

locations)

2. Same (Flush, Limited Space -No. 225

Locations)

3. Same (Exterior and Damp Locations) -FS Series with cast cover and gasket.

D. EMT, IMC, RGC, EMT Conduit Systems (wet locations) (NEMA 3 & 4)

1. Switch Receptacle and Junction Boxes -FS Series with

(EMT, IMC and RGC systems, exterior cast cover and exposed to weather and damp locations) gasket.

E. Pull and Junction Box

1. Provide code gage galvanized sheet steel NEMA 1, 3, 4, 4X SS, 7, 12 pull boxes where required on the drawings. Provide removable screw cover on the largest access side of the box unless otherwise detailed. Where cast boxes are indicated or specified, provide conduit entrances with threaded hubs. Provide stainless steel screws at all exterior and damp locations. Where pull boxes are required but not shown on the drawings, provide pull boxes as specified above sizes per NEC requirements or at Contractor's option, utilize OZ Type PB, PBW, or PFV pull box fittings. Paint all pull boxes with a rust inhibiting primer and finish coat to match surrounding finish.

2.04 CONDUIT FITTINGS

A. Provide conduit fittings as follows unless otherwise noted or detailed. Catalog numbers shown are Appleton Electric Company unless otherwise noted. Other brands of the same construction will be accepted.

B. Nonhazardous Area Fittings

EMT Rain-tight and Concrete Tight Series 86T, Compression Fittings 95T

TWR,TWLL Series

EMT Rigid Conduit Insulated Bushings Series BU

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EMT Rigid Conduit Grounding Insulated

Bushings

Series GIB

Rigid Conduit 90 Degrees Elbows Series LMFL, ELMF

Rigid Conduit Pulling Ells Series LB, LL, LR, FFL, MFL

Rigid Conduit Expansion Unions UNY, UNF, Expansion Series

Sheet Steel and Fiberglass Enclosures Watertight HUB Series

Liquid-tight Insulated Connectors Throat -STB, STN, STL, STNM Series

1. Provide EMT connectors with an insulated throat. Equip bushings for flexible conduit with grounding screws and insulated throat T&B #3802 series.

2. Provide rain-tight couplings and connectors for tubing employing a split corrugated ring and tightening nut. Fittings using indentations for securing same to tubing will not be permitted.

2.05 CONDUCTORS

A. This specification covers all conductors not specifically specified in other sections. Furnish conductors and cable conforming to UL, Federal Specification J-C-30, or IPCEA as applicable. Provide new cable manufactured within 1 year prior to installation. Deliver to jobsite in original cartons bearing U.L. label.

B. 600V Power, Lighting and Control Circuits: Provide copper conductors. Aluminum will not be allowed. Copper conductors unless otherwise specified, conform to Federal

Specification J-C-30. For cable type THW, or THWN, provide insulation conforming to

Federal Specification J-C-30A. For type XHHW, XLP-USE, provide cross-linked polyethylene insulation conforming to IPCEA S-66-524 Color code insulation for wire sizes No. 14 through No. 6, No. 4 AWG and larger may be color coded with tape. Motor

Control and Power Circuits stranded. See 16010 for specific conductor types.

C. See 27000 for specification of STP cable for interconnection of 7550 meter and 6200 meter.

2.06 IDENTIFICATION NAMEPLATES

A. Provide permanently mounted laminated plastic engraved nameplates for all electrical equipment listed in 16010 indicating name, function and rating. Submit nameplate legends for approval with shop drawings of equipment. Furnish black nameplates with engraved white letters for 120/240, 120/208-volt, and red with white letters for 480-volt equipment.

Letter height 1/4 inch minimum.

B. See 260010 for required nameplates and mounting methods.

2.07 WIRE NUMBERS

A. Provide vinyl cloth, machine numbered adhesive labels for each termination of all power and control conductors. Numbered plastic slip-on sleeves, or crimp-on sleeves are also acceptable. Number labels to correspond to schematic and wiring diagrams for each conductor.

2.08 LUGS, CONNECTORS AND TERMINATIONS

A. F.S. W-S-610B

B. Solderless insulated pressure twist-on connectors for conductors No. 8 or smaller for in-line splices for circuits other than motor power and control circuits.

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C. Use circumferential compression fittings for No. 6 AWG and larger conductors, termination lugs and splices. Copper conductors - tin plated copper terminals filled with oxide inhibiting pentrox compound.

D. Compression fittings shall be applied with a factory matched die in a hydraulic compression tool that stamps manufacturers name when fully compressed to manufacturer’s specifications.

2.09 INSULATION

A. Provide insulation equal to insulation of conductors used. For above ground installations, use thermoplastic tape, heat shrink tubing, pre-insulated splices, expandable insulated sleeves or resin encapsulated splices.

2.10 TAPE

A. Tape F.S. HH-I-595B.

2.11 MOUNTING HARDWARE

A. NSC threads on all threaded fasteners, nuts, bolts, screws, lag bolts, expansion shield, and other miscellaneous fasteners. Provide cadmium plated steel hardware for indoor dry locations.

B. Provide all stainless steel hardware, nuts bolts washers etc. for all outside locations and all wet locations.

2.12 INTERIOR PERFORATED MOUNTING CHANNEL

A. Provide 1-1/2 inch x 1-1/2 inch continuous steel channel with 17/32 inch diameter holes on

1-1/2inch centers on 3 sides of channel for bolting to. Fourth side of channel shall have 7/8 inch continuous slot for accessory hangers. Furnish accessory mounting hardware for equipment, clamps, hangers, etc.

2.13 EXTERIOR PERFORATED MOUNTING CHANNEL

A. Provide 1-1/2 inch x 1-1/inch continuous stainless steel channel as above. Provide stainless steel clamps and screws.

2.14 DUCT SEAL

A. Provide re-enterable duct seal for sealing conduit which remains pliable after in-place use, RVS Industries, No. KM1146, duct seal or equal.

2.15 RUBBER MATTING

A. Corrugated non-slip rubber mat of high dielectric strength and long aging qualities. Mat size, minimum of 36 inches wide extending the entire length of each power panel and control panel. Comply with ASTM Specification D178.24. 10,000 volt minimum dielectric strength, 3/16 inch thick.

B. Provide rubber mats at the following locations:

1. [List here] Provide in front of each AMS panel.

3. PART 3 - EXECUTION

3.01 See Section 26 00 10 for EXECUTION.

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END OF SPECIFICATION 210050