SECTION 16130

BOXES

PART 1 GENERAL

SECTION INCLUDES

Wall and ceiling outlet boxes.

Floor boxes.

Pull and junction boxes.

RELATED SECTIONS

Section 07270 - Firestopping.

Section 08305 - Access Doors.

Section [_____] - [_______________________________ ].

Section 16141 - Wiring Devices: [Floor box service fittings] [, access floor boxes] [, fire-rated poke-through fittings] [and] [mounting heights of wiring device outlets].

Section 16160 - Cabinets and Enclosures.

Section 16180 - Equipment Wiring Systems.

Section 16721 - Fire Alarm System: Mounting height of fire alarm outlets.

Section 16770 - Public Address System: Mounting height of public address system outlets.

Section [_____] - [_______________________]:	Mounting height of [__________] outlets.

REFERENCES

ANSI/NEMA FB 1 - Fittings and Supports for Conduit and Cable Assemblies.

ANSI/NEMA OS 1 - Sheet-steel Outlet Boxes, Device Boxes, Covers, and Box Supports.

ANSI/NEMA OS 2 - Nonmetallic Outlet Boxes, Device Boxes, Covers and Box Supports.

ANSI/NFPA 70 - National Electrical Code.

NEMA 250 - Enclosures for Electrical Equipment (1000 Volts Maximum).

PROJECT RECORD DOCUMENTS

Submit under provisions of Section [01700] [______].

Accurately record actual locations and mounting heights of outlet, pull, and junction boxes.

REGULATORY REQUIREMENTS

Conform to requirements of ANSI/NFPA 70.

Furnish products listed and classified by [Underwriters Laboratories, Inc.] [testing firm acceptable to authority having jurisdiction] as suitable for purpose specified and shown.

PROJECT CONDITIONS

Verify field measurements are as shown on Drawings.

Verify locations of floor boxes and outlets in [_____________] [, offices] [and] [work areas] prior to rough-in.

Electrical boxes are shown on Drawings in approximate locations unless dimensioned. Install at location required for box to serve intended purpose. [Include installation within [10] [___] feet ([3] [___] m) of location shown.]

PART 2 PRODUCTS

OUTLET BOXES

Sheet Metal Outlet Boxes: ANSI/NEMA OS 1, galvanized steel.

Luminaire and Equipment Supporting Boxes: Rated for weight of equipment supported; include 1/2 inch (13 mm) male fixture studs where required.

Concrete Ceiling Boxes: Concrete type.

Nonmetallic Outlet Boxes: ANSI/NEMA OS 2.

Cast Boxes: NEMA FB 1, Type FD [, aluminum][, cast feralloy]. Provide gasketed cover by box manufacturer. [Provide threaded hubs.]

FLOOR BOXES

Floor Boxes:	ANSI/NEMA OS 1, [fully adjustable] [semi-adjustable].

Material: [Cast metal] [Formed steel].

Shape:	[Round] [Rectangular] [Octagonal].

Conform to regulatory requirements for concrete-tight floor boxes.

PULL AND JUNCTION BOXES

Sheet Metal Boxes:	NEMA OS 1, galvanized steel.

Surface-Mounted Cast Metal Box: NEMA 250, Type [4] [6]; flat-flanged, surface-mounted junction box.

Material: [Galvanized cast iron] [Cast aluminum].

Cover: Furnish with ground flange, neoprene gasket, and stainless steel cover screws.

In-Ground Cast Metal Box: NEMA 250, Type 6, [outside] [inside] flanged, recessed cover box for flush mounting.

Material: [Galvanized cast iron] [Cast aluminum].

Cover: [Smooth] [Nonskid] cover with neoprene gasket and stainless steel cover screws.

Cover Legend: [ELECTRIC] [________________].

Fiberglass Handholes: Die-molded fiberglass handholes.

Cable Entrance: Pre-cut 6 x 6 inch (150 x 150 mm) cable entrance at center bottom of each side.

Cover: Fiberglass weatherproof cover with nonskid finish.

PART 3 EXECUTION

INSTALLATION

Install electrical boxes as shown on Drawings, and as required for splices, taps, wire pulling, equipment connections and compliance with regulatory requirements.

Install electrical boxes to maintain headroom and to present neat mechanical appearance.

Install pull boxes and junction boxes above accessible ceilings and in unfinished areas only.

Inaccessible Ceiling Areas: Install outlet and junction boxes no more than 6 inches (150 mm) from ceiling access panel or from removable recessed luminaire.

Install boxes to preserve fire resistance rating of partitions and other elements, using materials and methods under the provisions of Section 07270.

Align adjacent wall-mounted outlet boxes for switches, thermostats, and similar devices with each other.

Use flush mounting outlet boxes in finished areas.

Do not install flush mounting boxes back-to-back in walls; provide minimum 6 inch (150 mm) separation. Provide minimum 24 inches (600 mm) separation in acoustic rated walls.

Secure flush mounting box to interior wall and partition studs. Accurately position to allow for surface finish thickness.

Use stamped steel bridges to fasten flush mounting outlet box between studs.

Install flush mounting box without damaging wall insulation or reducing its effectiveness.

Use adjustable steel channel fasteners for hung ceiling outlet box.

Do not fasten boxes to ceiling support wires.

Support boxes independently of conduit [, except cast box that is connected to two rigid metal conduits both supported within 12 inches (300 mm) of box].

Use gang box where more than one device is mounted together. Do not use sectional box.

Use gang box with plaster ring for single device outlets.

Use cast outlet box in exterior locations [exposed to the weather] and wet locations.

Use cast floor boxes for installations in slab on grade; formed steel boxes are acceptable for other installations.

Set floor boxes level.

Large Pull Boxes: Boxes larger than 100 cubic inches (1 600 cubic centimeters) in volume or 12 inches (300 mm) in any dimension.

Interior Dry Locations: Use hinged enclosure under provisions of Section 16160.

Other Locations: Use surface-mounted cast metal box.

INTERFACE WITH OTHER PRODUCTS

Coordinate installation of outlet box for [products] [___________________] furnished under Section [_____].

Coordinate locations and sizes of required access doors with Section [08305] [_____].

Locate flush mounting box in masonry wall to require cutting of masonry unit corner only. Coordinate masonry cutting to achieve neat opening.

Coordinate mounting heights and locations of outlets mounted above counters, benches and backsplashes.

Position outlet boxes to locate luminaires as shown on reflected ceiling plan.

ADJUSTING

Adjust floor box flush with finish flooring material.

Adjust flush-mounting outlets to make front flush with finished wall material.

Install knockout closure in unused box opening.

END OF SECTION