260050_BasicMethodsAndMaterials-20110507.pdf

Telecommunications and Wiring Specifications 26 0050 AG-05G1-S-11-0021

Newport Ranger District, Colville National Forest 1

05/07/2011 Project Name 26 00 50 - 1/13

Basic Methods and Materials

SECTION 26 0050

BASIC MATERIALS AND METHODS

1. PART 1 - GENERAL

1.01 REFERENCE DOCUMENTS

A. See 26 00 10 General Technical Provisions

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

Section 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. Weather heads

9. Switches, Receptacles and Plugs

10. Conductors

11. Identification Nameplate Schedule

12. Wire Number Tags

13. Lugs and Connectors

14. Insulated Terminal Ends

15. Lightning Protection Equipment

16. Equipment Support Details

17. Ground rods

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18. Ground rod enclosures

19. Meter Base and Current Transformer Enclosure

20. Perforated Mounting Channel, Interior and Exterior

21. Duct Seal and Fire Stopping

22. Rubber Matting

23. Supplemental Fixtures Listed on Attached Sheets

2. PART 2 - PRODUCTS

2.01 DISCONNECT SWITCHES

A. Furnish and install disconnect switches conforming to NEMA KS 1, type HD, sized for the ampere and voltage as shown on the Drawings and as required by the National Electrical

Code and nameplate requirements of the equipment served.

B. Provide disconnecting means for all motor driven devices, unit heaters, etc. whether shown on the drawings or not.

C. Disconnect switches shall be of the fused or unfused type as required by the load served.

Where fused disconnects are specified or required provide fuses as specified herein.

1. Construction: Switches heavy-duty class, quick-make, quick-break, safety type, externally operable, (with bypassable interlock to allow opening of cover in "ON" position). Switch shall have positive indication of "OFF" and "ON" position.

Devices shall have visible blades unless molded case breaker mechanism is used.

Switches shall be constructed to prevent single phasing of switch blades due to mechanical failure.

2. Provide switches of the proper horsepower, ampere, and voltage rating with number of poles required to open all ungrounded conductors under rated load and with S/N bar where required.

3. Enclosure: Unless otherwise indicated, furnish individually mounted switches in

NEMA type 1 enclosure except in wet locations or where indicated as weatherproof, in which case, furnish a NEMA Type 3R or 4X enclosure or Nema 4X Stainless steel enclosureas required or shown on the drawings.

4. Fuses: Fuses 600 amperes and less: ANSI/UL 198E, Class RK5; as indicated on the drawings; dual element, current limiting, time delay, Bussman FRN-R for 250 volt and FRS-R for 600 volt.

5. Provide one fuse for each ungrounded conductor and a minimum of three spare fuses of each ampacity and voltage used on the project.

2.02 DUAL FUSED TRANSFER SWITCHES

1. Provide a Nema 4X Stainless steel 3P/4W200A dual fused service entrance rated transfer switch. Each

a. Provide service entrance rated transfer switch

i. Install 125A fuses for each feed

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2. Provide construction, fuses and spare fuses as described under fused disconnect switches

2.03 THERMAL-MAGNETIC CIRCUIT BREAKERS (INDIVIDUALLY MOUNTED)

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

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 pad lockable 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

2.04 PANEL BOARDS (CLASS 1)

A. Submittals: Furnish shop drawings of panel with dimensions, breaker arrangement, quantity and type of breakers and catalog cut sheets on panels and breakers.

B. General: Provide panel boards in conformance with the following specification for installation as shown on the drawings. Panel boards shall meet F.S. W-P-115b, Type 1, Class 1.

C. Panel boards: Furnish dead-front panel boards, flush mounted or surface mounted with sub-breakers, main lugs, double lugs or main breakers as shown on the drawings. Size lugs for feeders and conform to the specification for splicing and terminations. Copper busses, full panel height and rigidly supported with bus supports and all bus phases identified.

Minimum bus rating not smaller than the setting of the feeder protective device. Provide breaker mounting hardware for all spaces as shown. Provide number of breakers, poles and spaces shown on drawings. Furnish solid neutral where shown and an equipment ground buss bar. Supply doors with cylinder locks.

D. General Purpose Circuit Breakers (F.S. W-C-375B): Provide molded case circuit breakers with thermal magnetic trip units and a common trip bar for two or three-pole breakers, connected internally to each pole so that the tripping on one pole will automatically trip all poles of each breaker. Bails or clip will not be acceptable. Provide breakers of the trip-free and trip-indicating, bolt-on type. Provide single, two or three-pole breaker

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05/07/2011 Project Name 26 00 50 - 4/13 interchangeability. Provide minimum 10,000 AIC breaker interrupting ratings. Plug-in breakers are not acceptable on Class 1 panels. Minimum breaker thickness 1 inches.

Tandem breakers will not be accepted. Higher interrupting capacities are shown on drawings. Provide current limiting main breaker if shown on the drawings.

E. Ground Fault Interrupting Circuit Breakers: Provide circuit breakers with ground fault current interrupters as shown on the drawings. Unit rated for 120V A.C., U.L. listed, interrupting rating 10,000 AIC symmetrical fitting space of 1-pole breaker, and equipped with push-to-test button.

F. Special Features: Provide split-bus, subfeed lugs, subfeed protective device and contactors as indicated on the drawings or specified in this or other sections of these specifications.

Provide extra gutter space as required for subfeed connections. Provide auxiliary breaker trip alarm contacts where shown on panel directories.

G. Class 1 Power Distribution Panels: Provide Type 1, Class 1, panels where shown on drawings. Panels meet F.S. W-P-115b. Provide breakers as shown on drawings with interrupting capacity specified under GENERAL PURPOSE BREAKERS above, or higher interrupting capacity where indicated on drawings. Provide minimum box dimensions of

20 inches wide by 5-3/4 inches deep, NEMA 1 enclosure unless shown NEMA 3R (rain tight) or Nema 4X ss.

2.05 LOAD CENTERS (CLASS 2)

A. Submittals: Furnish shop drawings of load center with dimensions, breaker arrangement, quantity and type of breakers and catalog cut sheets on panels and breakers.

B. General: Provide load centers in conformance with the following specification for installation as shown on the drawings. Load center shall meet F.S. W-P-115b, Type 1, Class 2.

C. Load Centers: Furnish dead-front load centers, flush mounted or surface mounted with sub-breakers, main lugs, double lugs or main breakers as shown on the drawings. Size lugs for feeders and conform to the specification for splicing and terminations. Copper busses, full panel height and rigidly supported with bus supports and all bus phases identified.

Minimum bus rating not smaller than the setting of the feeder protective device. Provide breaker mounting hardware for all spaces as shown. Provide number of breakers, poles and spaces shown on drawings. Furnish solid neutral where shown and an equipment ground buss bar.

D. General Purpose Circuit Breakers (F.S. W-C-375B): Provide molded case circuit breakers with thermal magnetic trip units and a common trip bar for two or three-pole breakers, connected internally to each pole so that the tripping on one pole will automatically trip all poles of each breaker. Bails or clip will not be acceptable. Provide breakers of the trip-free and trip-indicating, plug-in type. Provide single, two or three-pole breaker interchangeability. Provide minimum 10,000 AIC breaker interrupting ratings. Minimum breaker thickness 1 inch. Tandem breakers will not be accepted. Higher interrupting capacities are shown on drawings. Provide current limiting main breaker if shown on the drawings.

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E. Ground Fault Interrupting Circuit Breakers: Provide circuit breakers with ground fault current interrupters as shown on the drawings. Unit rated for 120V A.C., U.L. listed, interrupting rating 10,000 AIC symmetrical fitting space of 1-pole breaker, and equipped with push-to-test button.

F. Special Features: Provide split-bus, subfeed lugs, subfeed protective device and contactors as indicated on the drawings or specified in this or other sections of these specifications.

Provide extra gutter space as required for subfeed connections. Provide auxiliary breaker trip alarm contacts where shown on panel directories.

G. Class 2 Load Centers: Provide Type 1, Class 2, load center with plug-on or bolt-on breakers. Load centers meet F.S. W-P-115b. Provide breakers as shown on drawings with interrupting capacity specified under GENERAL PURPOSE BREAKERS above or higher interrupting rating here indicated on the drawings. Furnish load center to fit in stud space of 16-inch on centers and stud depth or surface mount if shown on drawings. Provide

NEMA 1 enclosure unless shown NEMA 3R (rain tight) on drawings.

2.06 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. Rigid PVC UL listed Schedule 40 or Schedule 80

1. High Density Polyethylene conduit HDPE Sch80 conduit for 2” and larger.

2. UL Listed HDPE conduit is compliant with the 2002 NEC Articles 300 and 352, and is listed to UL 651B. Its high tensile strength to-weight ratio, superior crush resistance, and low coefficient of friction Sequentially marked footage

3. Provide smooth wall construction

4. Conforms to NEMA TC-7 Smooth wall Coilable PE Electrical Plastic Conduit

5. ASTM F 2160 Solid Wall High Density Polyethylene (HDPE) Conduit Based on

Controlled Outside Diameter (OD).

6. ASTM D 2239 Polyethylene (PE) Plastic Pipe (SIDR) Based on Controlled Inside

Diameter.

7. ASTM D 3035 Polyethylene (PE) Plastic Pipe (SDR) Based on Controlled Outside

Diameter.

8. NEMA TC-7 Smooth Wall Coilable Polyethylene Electrical Plastic Conduit.

F. Galvanized Flexible Metallic Conduit ANSI/NFPA 70.

G. Flexible Metallic Conduit ANSI/NFPA 70.

H. 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.

I. Liquid Tight flexible Nonmetallic conduit

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1. Liquidtight flexible Nonmetallic Conduit shall have a smooth inner surface with integral reinforcement within the conduit wall and be designated as a Type LFNC-B

(for FNMC-B). Liquidtight Flexible Nonmetallic Conduit shall be listed to UL standard UL1660. Liquidtight Flexible Nonmetallic Conduit shall beflame resistant and when used with listed fittings, is approved for the installation of electrical conductors.

2. Liquidtight flexible Nonmetallic Conduit shall be installed in accordance with Article

351, Part B of the National Electrical Code (NEC) and other applicable sections of the NEC and/or local electrical codes.

3. Liquidtight Flexible Nonmetallic Conduit shall be marked .OUTDOOR. for outdoor applications exposed to sunlight and weathering conditions.

4. Liquidtight Flexible Nonmetallic Conduit shall be marked for .DIRECTBURIAL. for direct burial applications.

5. Liquidtight Flexible Nonmetallic Conduit shall be evaluated by the National

Evaluation Service, Inc. For the installation within a three hour or less fire resistive floor/ceiling and two hour fire-resistive wall construction.

6. Liquidtight Fittings shall be listed for the use with Liquidtight Flexible Nonmetallic

Conduit and shall be marked LFNC-B (FNMC-B). Liquidtight Fittings uses for direct burial applications shall be listed for .Wet Locations..

J. Innerduct ADD SPEC

2.07 OUTLET BOXES

A. Provide metallic outlet boxes as follows unless otherwise noted or detailed. No nonmetallic boxes will 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

NEMA 3&4

PVC Boxes

NEMA 7

Explosion

Proof Class1

Group D

EMT systems not exposed to weather X X

IMC or RGC systems nonhazardous locations

X

IMC or RGC systems hazardous locations

X

Nonmetallic sheath cable X X

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

X

PVC system X

B. Exposed Boxes

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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. Nonmetallic and EMT Systems (dry locations) (NEMA 1)

1. Lighting Outlet Boxes (Concealed) -No. 4O-3/4

2. Lighting Outlet Boxes (Concrete) -No. OCR Series

3. Lighting Outlet Boxes (Exposed) -No. 4S-3/4 or 4O-3/4 with device

Cover.

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

Boxes (Flush or exposed dry if required.

locations)

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

Locations)

6. 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. IMC, RGC Conduit System (hazardous locations) (NEMA 7)

1. Hazardous Areas: NEMA 7 -GR, ER, and GUB series

2. Class I, Division I -EFS Unilets

(gasoline, solvents, sewage pump station, etc.)

3. Provide extension rings or deeper boxes as required and increase the above specified minimum box sizes to conform to allowable fill permitted by the code.

F. PVC Boxes - Exposed Applications: Catalog numbers shown below are Carlon Electrical

Products. Similar products of other manufacturers are equally acceptable.

PVC Conduit Systems (wet locations) (NEMA 3 & 4)

1. Two gang FS box, nonmetallic w/mounting feet for dead-end terminations. Type

2FSE, 1/2 inch, part no. E9802D

2. Single gang FD box, nonmetallic w/mounting feet for dead-end terminations. Type

2FDE, 1/2 inch, part no. E9801D

3. Single gang FD box, nonmetallic w/mounting feet for through terminations. Type

FDC, 1/2 inch, part no. E9811D

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4. Single gang cover, nonmetallic with gasket. Single toggle cover, for single gang weatherproof toggle switch application. Part No. E98TSC

5. Two gang cover, nonmetallic with gasket. Double toggle cover, for two gang weatherproof toggle switch application. Part no. E9G2SS

6. Blank cover, nonmetallic single gang. Part no. E980C

7. Blank cover, nonmetallic double gang. Part no. E9802C

8. Single switch cover, part no. E98SSC

9. In-use weatherproof cover, single gang vertical deep, clear, part no. E9UDVC

10. In-use weatherproof cover, single gang horizontal, clear, part no. E9UHC

11. In-use weatherproof cover, double gang, clear, part no. E9U2C

G. 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.

2.08 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 Raintight and Concrete Tight Series 86T, Compression Fittings 95T

TWR,TWLL Series

EMT Rigid Conduit Insulated Bushings Series BU

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

Liquidtight Insulated Connectors Throat -STB, STN, STL, STNMSeries

C. Hazardous Area Explosion Proof Fittings Class I Group D

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Unions UNF & UNY Series

Expansion Unions UNF, UNFL Series,UNY,UNYL

Series

90 Degrees Elbows Long Radius ELMFL Series

Flexible Couplings EX Series

Sealoffs EY Series ESU Series

Sealoffs with Drains SF Series

Conduit Bodies ER Junction Unilets 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 raintight 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.

D. PVC & Flexible nonmettail tubing Conduit Fittings (wet locations) (NEMA 3 & 4)

1. Provide conduit fittings as follows unless otherwise noted or detailed. Catalog numbers shown are Carlon Electrical Products. Other brands of the same construction will be accepted.

2. Conduit body, type T, 1/2 inch, part no. E983D

3. Conduit body, type LL, 1/2 inch, part no. E984D

4. Conduit body, type LR, 1/2 inch, part no. E985D

5. Conduit body, type LB, 1/2 inch, part no. E986D

6. Strain relief connectors and grommets, part no. H978E

7. PVC locknut, 1/2 inch, part no. LT9LD

8. Schedule 40 long line coupling, 2 inch, part no. E941J

9. Provide similar fittings for flexible nonmetallic tubing with mechanical compression connectiors by same manufacture as tubing

2.09 WEATHER HEAD

A. Aluminum or malleable iron set screw fastening entrance cap with snap on cover.

2.10 SWITCHES AND RECEPTACLES

A. Provide wiring devices indicated. Furnish ivory colored devices and plates unless otherwise indicated.

B. Wall Switches F.S. W-S-896. Phenolic compound bodies, 20 ampere, 120-277 volt for use on alternating current only, tungsten rated, side and back wired.

C. Receptacles F.S. W-C-596 with third post for ground, impact resistant smooth nylon face and body, side and back wired, 20 ampere, NEMA 5-20R duplex 125 volt, for use on alternating current only. Provide Leviton Industrial grade receptacles

1. All 120 VAC normal convenience and isolated ground receptacles shall be 20 ampere rated, fed from 20 ampere circuits. Outlets shall be industrial grade, nylon body and faceplate, back and side wired for use with stranded or solid wire. Isolated ground

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Leviton 5362 standard duplex isolated ground 5362-IG or approved equal.

D. Receptacles other than standard 20 ampere, 125 volt as follows unless otherwise noted:

1. Provide 20 ampere duplex GFI feed through outlet with ivory mounting plate, indicating led, test and reset buttons, 1-3/8" maximum thickness to fit in standard outlet box where shown on drawings. Specification grade.

2. Single 30 ampere receptacle, 3-pole, 3-wire, NEMA 6-30P with cord-grip, steel-covered plastic plug. Round or rectangular contact. Specification grade.

3. Range receptacle, flush type 50 ampere, 250 volt, 3-pole, 3-wire NEMA 10-50R.

Specification grade.

4. All other as specified on the drawings. Specification grade.

5. See 16115 for Explosion Proof switches and receptacles.

E. Cover Plates and Engraving

1. Provide impact resistant brown or white or ivory colored, nylon cover plates for all wiring devices in finished space unless otherwise indicated.

2. Receptacle nameplates shall have panel and circuit number engraved at top of plate in

0.25 inch high letters. Engraving shall be filled with black enamel for ivory plates, white enamel for brown plates and ivory plates filled with orange paint for isolated ground receptacle.

3. Cover Plates F.S. W-P-455. Provide anodized aluminum plates for flush mounted devices in unfinished spaces. Where devices are installed in exposed fittings or boxes, use Appleton "FSK" covers. Where weatherproof devices are specified in exterior or damp location use cast malleable covers with gasket and stainless steel screws.

2.11 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 9See 260400 for additional details and testing). 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. Nonmetallic sheathed cable F.S. J-C-30, Type NMB, Class 1, equipped with ground conductor.

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2.12 HOT DIP GALVANIZED GROUND RODS

A. Provide 5/8” x 10 foot hot dipped ground rods for corrosion resistance; high-strength steel is immersed in molten zinc forming a rust-proof barrier.

B. Minimum zinc thickness 3.9 mils. (per ASTM A-123)

C. Meets NEMA and ANSI C135.30 requirements.

D. Provide manufacturers name stamped at end of rods for inspectability and traceability.

2.13 GROUND ROD ENCLOSURES

A. Provide a circular concrete ground rod enclosure with a removable cast iron metal conver for ground rod protection. Minimum inside diameter 10”.

2.14 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.

2.15 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.

2.16 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.

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 manufactures specifications.

2.17 INSULATION

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

2.18 TAPE

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

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2.19 METER BASE

A. Provide meter bases where shown on drawings. Meter base compatible with phase, voltage, current rating, conductor sizes and current transformers, if any, as shown on drawings.

Coordinate with serving utility to determine base required, if not shown on drawings.

B. Provide stainless steel enclosure for meter base.

2.20 CURRENT TRANSFORMERS AND ENCLOSURES

A. Provide NEMA 3R enclosure for current transformers. Adequately size enclosure to house current transformers and any tap connections. Coordinate with serving utility to determine enclosure size if not shown on drawings. Current transformers will be provided by serving utility unless otherwise specified or shown on the drawings.

2.21 COMBINATION METER BASE - SERVICE ENTRANCE

A. Provide NEMA 3R, Class 2, 120/240 V, 1 phase, 3-wire combination meter base - service entrance with standard four-jaw meter socket, and circuit breaker panel, sized as shown on drawings, breakers specified under general purpose beakers, except plug-on breakers will be allowed.

2.22 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.

2.23 INTERIOR PERFORATED MOUNTING CHANNEL

A. Provide 1-1/2" x 1-1/2" continuous steel channel with 17/32" diameter holes on 1-1/2" centers on 3 sides of channel for bolting to. Fourth side of channel shall have 7/8" continuous slot for accessory hangers. Furnish accessory mounting hardware for equipment, clamps, hangers, etc.

2.24 EXTERIOR PERFORATED MOUNTING CHANNEL

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

2.25 LIGHTNING ARRESTING EQUIPMENT (LINE VOLTAGE)

A. Provide lightning arrestor equipment for control panel service entrance equipment where shown.

B. Construction: Lightning arrestor rated for 0-650 V RMS, single or three phase as required, with impulse sparkover voltage of approximately 3.2 KV per 100 KV/us. Provide a 3/4" conduit for mounting in knockout holes in power panels or by a mounting bracket to enclosure surfaces. Provide gas tube or silicon carbide Square D SP3650 type arrestors or approved equal, SP117510 on 230 V single phase systems.

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2.26 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.

3. PART 3 - EXECUTION

3.01 See Section 26 00 10 for EXECUTION.

END OF SPECIFICATION 210050