E03.REV

RACEWAYS

NOTE: FINAL COPY. JUNE 1988.

Part 1 -	GENERAL

1)	WORK INCLUDED

A.	Work in this Section includes the providing of labor, materials, equipment and services necessary for a complete and safe installation in accordance with the contract documents and all applicable codes and authorities having jurisdiction for the following:

1.	Raceways complete with boxes, fittings and accessories.

B.	Conduit or tubing sizes referred to in the Specifications and on the drawings are nominal internal diameters.

C.	Steel material shall be galvanized for raceways underground and in wet, damp or corrosive atmosphere with 40 mil PVC coating.

D.	Allow 1/2 inch clearance between equipment, except 3/8 inch between recessed fixtures and outlet box.

2)	RELATED WORK AND REQUIREMENTS

A.	Requirements of GENERAL CONDITIONS, DIVISION No. 1 and Section GENERAL PROVISIONS FOR ELECTRICAL WORK apply.

NOTE: EDIT TO SUIT PROJECT REQUIREMENTS. INCLUDE ONLY SECTIONS DIRECTLY AFFECTING WORK OF THIS SECTION

B.	Related work in the following sections:

1.	CABLE TRAY (CENTER SPINE TYPE).

2.	CABLE TRAY (SIDE RAIL TYPE).

3.	WIRE AND CABLE.

4.	BUSWAYS.

5.	LOW VOLTAGE DISTRIBUTION EQUIPMENT.

6.	UNIT SUBSTATION.

7.	MOTOR CONTROL CENTERS.

8.	MOTOR CONTROLLERS.

9.	ELECTRIC SERVICE SYSTEM.

10.	POWER, CONTROL AND ALARM WIRING SYSTEMS.

11.	GROUNDING SYSTEM.

12.	DEVICES.

13.	PIPE TRACING SYSTEM.

14.	-----.

3)	REFERENCE STANDARDS

A.	Published Specifications' standards, tests or recommended methods of trade, industry or governmental organizations apply to work in this Section.

B.	Comply with all applicable national, state and local codes and refer to Section GENERAL PROVISIONS FOR ELECTRICAL WORK for additional Reference Standards.

4)	QUALITY ASSURANCE

A.	Refer to Section GENERAL PROVISIONS FOR ELECTRICAL WORK for Guarantee and other Quality Assurance requirements.

5)	SUBMITTALS

A.	Submit shop drawings and product data for raceways, manholes and handholes.

Part 2 -	PRODUCTS

1)	BASE BID MANUFACTURERS

A.	Raceways:

1.	Metallic: Contractor's option in accordance with the Specifications.

2.	PVC: Carlon, Triangle and Phelps Dodge.

3.	Wireways: Contractor's option in accordance with the Specifications.

4.	Surface metal raceway: Wiremold.

B.	Boxes: Contractor's option in accordance with the Specifications.

C.	Raceway fittings: Thomas and Betts Co., O.Z. Electrical Mfg. Co., Inc., Crouse-Hinds Co., Appleton Electric Co., Bridgeport Fittings Inc. and Efcor.

D.	Manhole Hardware: Neenah, Cambell, and Flockhart Foundry.

2)	RACEWAYS

A.	Rigid steel conduit: Provide full weight pipe, galvanized and threaded.

B.	Intermediate metal conduit: Provide lightweight steel pipe, galvanized and threaded.

C.	Aluminum conduit: Provide full weight pipe and threaded.

D.	Electro metallic tubing (EMT): Provide thin wall pipe, galvanized and threadless.

E.	Flexible steel conduit: Provide continuous single strip, galvanized.

NOTE: AVAILABLE FROM 1/2 INCH TO 4 INCH SIZE.

F.	Polyvinyl chloride conduit (PVC) (provide only where noted):

1.	Self-extinguishing, NEMA TC-2, for 194 deg F rated cable and NEMA TC-6 for communications wiring only.

2.	Concrete encased and direct burial: Provide heavy wall, Schedule 40.

3.	Elbow: Provide galvanized rigid steel for direct burial.

G.	Wireways: Size shall be as noted and construction shall be No. 16 gauge steel with ground continuity with baked enamel finish.

1.	Cover shall be hinged.

2.	Cover shall be screw-on.

3.	Cover shall be raintight with screw-down gasketed cover.

H.	Surface metal raceway: Size shall be as noted, with 0.04 inch base and 0.25 steel cover and baked enamel finish.

1.	Provide snap-on covers.

2.	Provide screw-on covers.

NOTE: FOR EXTERIOR POOLS AND FOUNTAINS. FOR INTERIOR POOLS CONSIDER PVC

I.	Brass or copper conduit: Provide full weight pipe, bent or long sweep elbows. Standard elbows will not be permitted. Provide bronze sealing fittings and boxes.

3)	FITTINGS AND ACCESSORIES

A.	Raceway fittings:

1.	For rigid steel and intermediate metal conduits, provide non-split, threaded, steel or malleable iron. Zinc die cast will not be permitted.

2.	For rigid aluminum conduit, provide non-split, threaded copper free aluminum alloy or hot dipped galvanized.

3.	Provide compression type electro-metallic tubing with galvanized rigid steel elbows, 2 inch or larger.

4.	Provide angle wedge type flexible metallic conduit with insulated throat.

5.	Provide metallic insulated type bushings.

6.	For weatherproof and dustight installations, provide liquid-tight with sealing ring and insulated throat.

7.	For PVC conduit in pools or fountains, provide cycolac or equal waterproof fittings.

NOTE: COORDINATE WITH ARCHITECT AND PLUMBING DEPT.

B.	Sleeves:

1.	For exterior non-membrane waterproofed walls, provide galvanized cast iron, galvanized steel or wrought iron with continuously welded center flange.

2.	For exterior membrane waterproof walls, floors and roofs, provide galvanized cast iron, flashing flange and clamping ring, similar to Josam No. 26400 Series or O.Z. type WSK or FSK.

3.	For exterior non-membrane waterproof roofs, provide galvanized cast iron, flashing flange and clamping ring, similar to Josam No. 26440 Series.

4.	For interior membrane waterproof floors, provide galvanized cast iron, flashing flange and clamping ring and extension sleeve, similar to Josam No. 26420 Series or O.Z. type WSL or FSK. Extension sleeve shall be two inches above floor. Clamp to flashing.

5.	For membrane moisture proofing below slabs, provide the same as for membrane floor except with riser clamp in slab around sleeve.

6.	Provide roof flashing as directed by roof manufacturer, extending 10 inches around edge of raceway.

7.	Seals:

a.	Provide O.Z. Type WSK thru wall seal for raceways in waterproof sleeves.

b.	Provide sealing compound for raceways in non-watertight sleeves.

c.	Provide O.Z. Type WSCS for thruwall cable seals.

d.	In hazardous areas, cold rooms conductor water stops, provide Crouse-Hinds or Appleton type EYS, ESU, EYM, EYOM or SFM with matching sealing cement or fiber filler.

8.	Expansion Fittings: For raceway not in slab, provide flexible conduit with external bonding jumper strip. In slab, provide O.Z. Type 'AX' or Appleton type 'XJ' or 'XJF' with ground continuity.

9.	For cables in raceways through sleeves, provide O.Z. type 'KSC' compound or type C series terminators.

C.	Concrete markers: Provide cylindrical concrete column with imbedded, marked bronzed plate. Location shall be above underground raceway bends and terminations.

D.	Fire sealants shall be similar to Chase Foam, CTC PR-855 fire resistant foam sealant.

4)	BOXES

A.	Outlet boxes, except as otherwise required by construction, devices or wiring shall be:

1.	Stamped steel, 4 inches square or octagon for fixtures.

a.	Above ceiling boxes shall be 1-1/2 inches deep.

b.	In ceiling or slab boxes shall be 3 inches deep.

c.	In wall for fixtures boxes shall be 2-1/8 inches deep.

d.	In wall for receptacles and switches boxes shall be 1-1/2 inches deep.

e.	Provide with raised covers and fixture studs where required.

f.	Through-the-wall type will not be permitted.

2.	Provide galvanized cast iron or cast aluminum with threaded hubs. On ceiling, provide round, 2 inches deep. On wall, provide square, 2 inches deep.

3.	For outdoors and damp locations, provide weatherproof, cast metal.

4.	Without fixture or device, provide blank cover.

5.	Offset back-to-back outlets: Provide minimum 6 inch separation.

6.	Provide cast brass or bronze in grade and underwater.

7.	Cycoloc shall be per code for pools and fountains only.

B.	Provide junction and pull boxes constructed of galvanized sheet steel with screw-on covers, except as noted, and with insulated supports for cables.

1.	Location shall be as noted and boxes shall be accessible.

2.	For outdoors and damp locations, provide galvanized cast iron with threaded hubs and gaskets.

3.	Provide barriers between 265/460 volt wiring energized from separate services, 120/208 volt and 265/460 volt wiring and emergency and normal wiring.

4.	Provide cast brass or bronze in grade and underwater.

NOTE: FOR EXISTING BOXES.

5.	Provide barriers in existing boxes between 265/460 volt wiring energized from separate services, 120/208 volt and 265/460 volt wiring and emergency and normal wiring.

C.	Provide galvanized cast iron floor boxes with brass covers and flanges, except cast aluminum where noted. Floor boxes shall be suitable for conduit and devices noted.

1.	Raised outlets: Provide Box, Hubbell # B2414 series with above floor fitting. Telephone shall be bushed hole. Power shall be duplex receptacle or other as noted. Increase to suit as necessary.

2.	Flush outlets: Provide Box, Hubbell # B2414 series with flush floor fitting for telephone and flush dual flap cover with duplex receptacle for power as noted. Increase size to suit as necessary.

3.	Provide waterproof, raise-to-use combination telephone and duplex receptacle assembly.

D.	Provide current transformer cabinets and meter pans to accommodate metering equipment as approved by utility company. Aluminum plate closure shall prohibit electrical induction.

E.	Provide 3500 psig, precast or single pour concrete manholes with reinforcement for roadway class use.

1.	Provide chimneys where required.

2.	Sizes shall be minimum as noted; increase depth to accommodate raceway entry plus 2 feet.

3.	Seal openings watertight and paint exterior with 2 coats asphaltic compound. Clear interior prior to energizing cable.

4.	Provide sump pit.

5.	Double manholes: Provide 3 inch drain pipe at floor between compartments.

6.	Frames and covers shall be heavy duty, foundry grade cast iron approximately 75 lbs. with machined bearing surfaces. Covers shall be solid, indented top, with accepted identification lettering, similar to Neenah, Cambell or Flockhart Foundry.

7.	Provide raceway entries at right angles to walls, terminating in bell ends.

8.	Imbed ladder rungs in concrete and fasten to reinforcing rods. Locate on same wall and clear of raceway entries directly under manhole cover.

9.	Pulling eye irons shall be similar to rungs, locate on walls opposite raceway entries.

10.	Cable racks: Cable supports shall be adjustable with porcelain insulators, similar to Line Material Heavy Duty Type. Rack supports shall be channels, approximately 2 feet on center, similar to Globe Co. No. G-3812.

11.	Provide hot dipped galvanized hardware.

12.	Portable ladder shall conform with the requirements of

13.	Grounding: Provide 3/4 in. x 10 ft - 0 in. copper clad steel ground rod. Drive ground rod into earth below manhole near a wall with 6 inch left protruding above the floor with clamp connection and with No. 6 copper jumper grounding out shield of cable as required. Ground all non-current carrying metal parts in manhole.

F.	Handholes: Provide 3500 psig, single pour concrete. Cover shall be in grade, with 3/8 inch checkered steel plate, bolted and neoprene gasketed. In road, same as manholes except 18 inch square. Seal openings watertight and paint exterior with 2 coats of asphaltic compound.

Part 3 -	EXECUTION

1)	INSTALLATION

A.	Raceways:

1.	Run raceways concealed, except as noted.

2.	Supports:

a.	Provide ceiling trapeze, strap hangers, or wall brackets.

b.	Provide U-bolts at each floor level of riser raceways and connected to acceptable supports.

c.	Provide Riser clamps at each floor level of riser raceways and resting on slab.

d.	Secure raceways to supports with pipe straps or U-bolts.

e.	Spacing: Provide maximum 10 feet on centers for metallic raceway and as required for non-metallic raceway. Provide 5 feet on centers for wireways. Install per code and as noted for others.

f.	Mount supports to structure with:

(1)	Toggle bolts on hollow masonry.

(2)	Expansion shields or inserts in concrete and brick.

(3)	Machine screws on metal.

(4)	Beam clamps on framework.

(5)	Wood screws on wood.

(6)	Pan thru straps in metal deck.

(7)	Nails, rawl plugs or wood plugs not permitted.

(8)	Where required by structure, provide thru bolts and fish plates.

3.	Run exposed parallel with or at right angles to walls.

4.	Provide clearance from water, steam or other piping with a minimum 3 inch separation from steam and hot water pipes, except 1 inch from pipe cover at crossings. Parallel runs on top of piping shall be 18 inches.

5.	Keep clear of inertia blocks, underside of boilers and all vibration isolated bases.

6.	For hung ceiling outlets, run in hung ceilings and connect to ceiling support channels.

7.	In masonry and poured concrete, run vertically only.

8.	Maintain grounding continuity of interrupted metallic raceways with ground conductor, and in flexible conduit for feeders and motor terminal connections.

9.	Empty raceways over 10 feet long: Provide fish or pull wire, galvanized or nylon rope.

NOTE: INDICATE LOCATIONS ON DRAWINGS.

10.	In cold rooms, weatherproof with sealing fittings and compound at entries.

11.	In concrete encased conduits, run exposed inside building.

NOTE: REVIEW WITH STRUCTURAL ENGINEER.

a.	Encasing shall be reinforced, Class I concrete.

b.	Markings shall be 10 feet on centers. Stencil on underside of concrete including in hung ceiling: "Danger, High Voltage.

NOTE: DELETE IF NOT APPLICABLE.

c.	Boxes shall be Welded steel, enclosed with accessories and construction per Utility Company requirements.

12.	Underground beyond building:

a.	Provide minimum 24 inch top cover, 36 inch for non-metallic type, except if in reinforced concrete.

b.	Electric and telephone separation: Provide minimum 12 inches of well tamped earth or 6 inches of concrete.

c.	Slope away from building.

d.	Building entry and preceding manhole: Plug empty raceways. Seal cables in raceways with terminators, similar to O. Z. Type CRC Series.

e.	On manhole entries, provide through end bells perpendicular to entering wall.

f.	Anchor to prevent movement.

g.	After installing, pass stiff bristle, mandrel (85 percent of raceway diameter) and plug.

h.	Placement shall be over well-tamped trench bottom and on concrete spacers, 5 feet on centers.

i.	Stagger joints minimum 6 inches apart.

j.	Encasing shall be reinforced, Class 1 concrete, where noted.

k.	Provide watertight joints.

NOTE: INDICATE AREAS ON DRAWINGS.

13.	Acoustically treated areas:

a.	Provide flexible conduit at entries, exits, and outlets.

b.	Provide sealing fittings with compound at: entries and exits.

c.	Supports shall be rubber-in-shear or spring isolated ceiling hangers.

d.	Provide expansion fittings at isolating slab joints.

e.	Provide rubber gasketed device plates.

f.	Provide back plaster recessed outlets.

NOTE: COORDINATE WITH ARCHITECT. EQUIPMENT SHOULD NOT HAVE ANY INTERNAL DAMPERS

g.	Provide freestanding equipment with vibration dampers.

14.	Provide raceways only as herein specified, except as noted. Conform to all local requirements for fire and life safety system raceways.

15.	Rigid steel conduit:

a.	Permitted usage are as follows:

(1)	Feeders, branch circuits, direct buried and concrete encased.

NOTE: IN NYC ONLY.

(2)	Utility Co. service wiring.

b.	Paint male threads of field threaded conduit with homogenized blend of colloidal copper and rust and corrosion inhibits pipe compound, similar to T & B coppershield. Butt conduit ends.

NOTE: CHECK STRUCTURAL ENGINEER.

c.	In slabs, provide maximum outside diameter 1/3 slab thickness and locate mid-slab.

NOTE: CHECK STRUCTURAL ENGINEER

d.	In concrete fill, provide minimum 1 inch cover.

e.	In terrazzo floor finish, rigid steel conduit will not be permitted.

f.	On direct buried, provide 2 coats of asphaltum paint. Dry thoroughly between paintings and before backfilling.

g.	Under building, concrete encase.

h.	Touch up marred surfaces and field cut threads with CRC-Cold Galvanized.

i.	Under roads, roadways and parking areas, concrete encase.

16.	Intermediate Metal Conduit:

a.	Permitted usage are feeders, branch circuits and concrete encased.

b.	Paint male threads of field threaded conduit with graphite base pipe compound. Butt conduit ends.

NOTE: CHECK STRUCTURAL ENGINEER.

c.	In slabs, provide maximum outside diameter 1/3 slab thickness and locate mid-slab.

NOTE: CHECK STRUCTURAL ENGINEER.

d.	In concrete fill, provide minimum 1 inch cover.

e.	In terrazzo floor finish, intermediate metal conduit will not be permitted.

f.	Under building, concrete encase.

g.	Do not use for direct burial.

h.	Touch-up marred surfaces and field cut threads with CRC-Cold Galvanized.

NOTE: N.Y.C. ONLY.

i.	Do not use for cables installed by Utility Co.

17.	EMT:

a.	Permitted usage are:

(1)	Feeders, branch circuits and dry locations, dry walls, hung ceilings, hollow block walls and furred spaces.

NOTE: REQUIRES ENGINEERING DIRECTOR'S APPROVAL.

(2)	Concrete encased.

b.	EMT will not be permitted for electric service wiring.

18.	Flexible steel conduit:

a.	Provide in dry walls and for short connections where rigid conduit is impracticable.

b.	From outlet box to recessed lighting fixture, provide minimum 4 feet, maximum 6 feet length.

c.	For final connection to motor terminal box, transformers and other vibrating equipment, provide with polyvinyl sheathing and ground conductor. Minimum length shall be 18 inch with slack. Connect ground conductor to enclosure or raceway at each end.

d.	Cross expansion joints at right angles and anchor ends.

19.	Aluminum conduit:

NOTE: CONSIDER AL FOR 400 HZ, MRI AREAS AND EXPOSED OUTDOOR AREAS

a.	Permitted usage are feeders and branch circuits.

b.	Do not use in or on concrete or masonry or for direct burial.

c.	Use metallic sleeve and seal conduit in sleeve through concrete and masonry walls and floors.

d.	Maintain clearance between conduit and surfaces in moist locations, in interior spaces below exterior finished grade and in boiler room.

e.	For connections to steel surfaces, maintain galvanized to-aluminum contact or paint with asphalt base paint.

f.	Pull wire shall be steel core nylon rope and terminal ball.

g.	Use galvanized steel elbows for all bends.

20.	Plastic conduit:

NOTE: CONSIDER FOR LIGHTNING PROTECTION DOWN CONDUCTOR IF IN FIRE RATED ENCLOSURE

a.	Permitted usage are only where noted on drawings.

b.	Cut ends square, ream smooth, wipe clean, apply approved solvent cement and quarter turn as drawing up tight to shoulder.

c.	For underground, convert to steel conduit through adaptors when entering building and for risers.

d.	Clearance from hot water and steam lines shall be 3 feet minimum.

e.	Provide ground wire with power wiring and increase size if required.

f.	Seal joints watertight.

g.	Concrete encase under roads, roadways and parking areas.

NOTE: FOR EXTERIOR POOLS AND FOUNTAINS.

21.	Brass or copper conduit shall be similar to rigid steel conduit, except pipe-dope and tape or thread ends and linsead oil compound on joints. Provide ground conductors per code.

22.	If not set in concrete, set all non-metallic conduit and duct in 3 inch sand bed and 6 inch sand top cover. Add plastic tape warning label 12 inches below grade. Compact earth to original densities.

23.	Expansion fittings shall be at right angles with slip joint centered in expansion joint. Provide on length of runs in accordance with manufacturer's recommendations. Pre-set to allow for temperature variation.

24.	For raceways passing thru fire rated construction, seal opening with fire sealant.

25.	Outlet boxes:

a.	Set boxes square and true with building finish.

b.	Secure to building structure by adjustable strap irons or grout in with masonry.

c.	Verify outlet locations in finished spaces with Architectural Drawings of interior details and finishes.

d.	Provide barriers between switches connected to different phases for voltages exceeding 150 volts to ground.

e.	Provide bronze with sealing compound below water.

26.	Panel, junction and pull boxes.

a.	Location shall be clear of other trades. Conceal junction and pull boxes in finished spaces and make them accessible.

b.	Support from building structure, independent of conduit. Provide floor to ceiling channels for mounting on dry wall and lightweight construction.

c.	Outlet boxes for fixtures recessed in hung ceilings shall be accessible through opening created by removal of fixture. Secure to black iron ceiling support.

d.	Coordinate motor terminal boxes with motor branch circuit conduit and wiring. Add box volume where required.

27.	Outdoor installations shall be weatherproof except as noted. In grade, waterproof.

28.	Fire sealants: Provide for raceways and wire passing through floor slots, sleeves or openings in fire partitioned rooms. Add fire barriers tight to conductors from Transformer Vaults and Network Protector Compartments. Fire sealant shall be similar to Nelson Electric, type MCT, Class 200.

2)	TESTS

A.	Continuity: Test resistance of feeder conduits from service to point of final distribution using 1 conductor return. Maximum shall be 25 ohms resistance.