260533_Raceway Boxes for Electrical Systems.DOC
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- Attached to
- RECOVERY Replace Annex Building HVAC, Beneficial Insects Introduction Research Unit (BIIRU), Newark, DE
- Solicitation number
- AG-3615-S-10-0001
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J.1 -02 SPECIFICATIONS - FILE 24
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SECTION 260533 - RACEWAY AND BOXES FOR ELECTRICAL SYSTEMS
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. This Section includes raceways, fittings, and boxes, for electrical wiring.
1.3 DEFINITIONS
A. EMT: Electrical metallic tubing.
B. EPDM: Ethylene-propylene-diene terpolymer rubber.
C. LFMC: Liquidtight flexible metal conduit.
D. RNC: Rigid nonmetallic conduit.
1.4 SUBMITTALS
A. Product Data: For surface raceways, wireways and fittings, floor boxes, hinged-cover enclosures, and cabinets.
B. Shop Drawings: For the following raceway components. Include plans, elevations, sections, details, and attachments to other work.
1. Custom enclosures and cabinets.
C. Qualification Data: For professional engineer and testing agency.
D. Source quality-control test reports.
1.5 QUALITY ASSURANCE
A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.
B. Comply with NFPA 70.
PART 2 - PRODUCTS
2.1 METAL CONDUIT AND TUBING
A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
1. AFC Cable Systems, Inc.
2. Alflex Inc.
3. Allied Tube & Conduit; a Tyco International Ltd. Co.
4. Anamet Electrical, Inc.; Anaconda Metal Hose.
5. Electri-Flex Co.
6. Manhattan/CDT/Cole-Flex.
7. Maverick Tube Corporation.
8. O-Z Gedney; a unit of General Signal.
9. Wheatland Tube Company.
B. EMT: ANSI C80.3.
C. LFMC: Flexible steel conduit with PVC jacket.
1. Shall be used only at equipments connections. Not to exceed 6’ length.
D. Fittings for Conduit and EMT: NEMA FB 1; listed for type and size raceway with which used, and for application and environment in which installed.
1. Fittings for EMT: Steel set-screw or compression type.
2.2 BOXES, ENCLOSURES, AND CABINETS
A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
1. Cooper Crouse-Hinds; Div. of Cooper Industries, Inc.
2. EGS/Appleton Electric.
3. Erickson Electrical Equipment Company.
4. Hoffman.
5. Hubbell Incorporated; Killark Electric Manufacturing Co. Division.
6. O-Z/Gedney; a unit of General Signal.
7. RACO; a Hubbell Company.
8. Robroy Industries, Inc.; Enclosure Division.
9. Scott Fetzer Co.; Adalet Division.
10. Spring City Electrical Manufacturing Company.
11. Thomas & Betts Corporation.
12. Walker Systems, Inc.; Wiremold Company (The).
13. Woodhead, Daniel Company; Woodhead Industries, Inc. Subsidiary.
B. Small Sheet Metal Pull and Junction Boxes: NEMA OS 1.
PART 3 - EXECUTION
3.1 RACEWAY APPLICATION
A. Outdoors: Apply raceway products as specified below, unless otherwise indicated:
1. Connection to Vibrating Equipment (Including Motor-Driven Equipment): LFMC.
2. Boxes and Enclosures, Aboveground: NEMA 250, Type 3R.
B. Comply with the following indoor applications, unless otherwise indicated:
1. Exposed, Not Subject to Physical Damage: EMT.
2. Exposed, Not Subject to Severe Physical Damage: EMT.
3. Concealed in Ceilings and Interior Walls and Partitions: EMT.
4. Connection to Vibrating Equipment (Including Motor-Driven Equipment): LFMC.
C. Minimum Raceway Size: 3/4-inch trade size.
D. Raceway Fittings: Compatible with raceways and suitable for use and location.
1. Rigid Steel Conduit: Use threaded rigid steel conduit fittings, unless otherwise indicated.
2. Fittings for EMT: Steel set-screw or compression type.
3.2 INSTALLATION
A. Comply with NECA 1 for installation requirements applicable to products specified in Part 2 except where requirements on Drawings or in this Article are stricter.
B. Complete raceway installation before starting conductor installation.
C. Support raceways as specified in Division 26 Section "Hangers and Supports for Electrical Systems."
D. Install no more than the equivalent of three 90-degree bends in any conduit run except for communications conduits (BMS), for which fewer bends are allowed.
E. Conceal conduit and EMT within finished walls, ceilings, and floors, unless otherwise indicated.
F. Raceway Terminations at Locations Subject to Moisture or Vibration: Use insulating bushings to protect conductors, including conductors smaller than No. 4 AWG.
G. Provide Nylon (plastic) bushing at the end of each conduit to protect wire.
H. Flexible Conduit Connections: Use maximum of 72 inches (1830 mm) of flexible conduit for recessed and semirecessed lighting fixtures, equipment subject to vibration, noise transmission, or movement; and for transformers and motors.
1. Use LFMC in damp or wet locations subject to physical damage.
3.3 PROTECTION
A. Provide final protection and maintain conditions that ensure coatings, finishes, and cabinets are without damage or deterioration at time of Substantial Completion.
END OF SECTION
Upgrade The Annex Building HVAC
Raceway & Boxes for Electrical Systems
BIIRU, Newark DE 260533 - 4
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