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SECTION BASIC ELECTRICAL MATERIALS AND METHODS - PDF
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1 SECTION BASIC ELECTRICAL MATERIALS PART 1 - GENERAL 1.1 SUMMARY A. Section includes the limited scope construction materials and methods for application with electrical installations as follows: 1. Miscellaneous materials for support of electrical materials and equipment. 2. Cutting and patching for electrical construction. 3. Touchup painting. 4. Mounting heights. 5. Electrical equipment coordination and installation. 6. Sleeves for raceways and cables. 7. Sleeve seals. 8. Common electrical installation requirements. 1.2 DEFINITIONS A. The following definitions apply to excavation operations: 1. Additional Excavation: Where excavation has reached required subgrade elevations, if unsuitable bearing materials are encountered, continue excavation until suitable bearing materials are reached. The Contract Sum may be adjusted by an appropriate Contract Modification 2. Subbase: As used in this Section refers to the compacted soil layer used in pavement systems between subgrade and the pavement base course material. 3. Subgrade: As used in this Section refers to the compacted soil immediately below the slab or pavement system. 4. Unauthorized excavation consists of removal of materials beyond indicated subgrade elevations or dimensions without specific direction from the Architect. 1.3 SUBMITTALS A. Shop drawings are not required for material and equipment specified under this Section of the specifications. 1.4 QUALITY ASSURANCE A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in City of Chicago Electrical Code, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use. B. Comply with City of Chicago Electrical Code. MELVILLE W. FULLER ELEMENTARY BASIC ELECTRICAL MATERIALS
2 C. Installer Qualifications: Engage an experienced installer for the installation and application of joint sealers, access panels, and doors. D. Qualify welding processes and welding operators in accordance with AWS D1.1 Structural Welding Code Steel. 1. Certify that welder has satisfactorily passed AWS qualification tests for welding processes involved and, if pertinent, has undergone recertification. 1.5 PROJECT CONDITIONS A. Conditions Affecting Excavations: The following project conditions apply: 1. Maintain and protect existing building services which transit the area affected by selective demolition. 2. Protect structures, utilities, sidewalks, pavements, and other facilities from damage caused by settlement, lateral movement, undermining, washout, and other hazards created by excavation operations. 3. Site Information: Subsurface conditions were investigated during the design of the Project. Reports of these investigations are available for information only; data in the reports are not intended as representations or warranties of accuracy or continuity of conditions. The Owner will not be responsible for interpretations or conclusions drawn from this information. 4. Existing Utilities: Locate existing underground utilities in excavation areas. If utilities are indicated to remain, support and protect services during excavation operations. 5. Remove existing underground utilities indicated to be removed. a. Uncharted or Incorrectly Charted Utilities: Contact utility owner immediately for instructions. b. Provide temporary utility services to affected areas. Provide minimum of 48-hour notice to Architect prior to utility interruption. 6. Use of explosives is not permitted. B. Environmental Conditions: Apply joint sealers under temperature and humidity conditions within the limits permitted by the joint sealer manufacturer. Do not apply joint sealers to wet substrates. 1.6 COORDINATION A. Coordinate chases, slots, inserts, sleeves, and openings with general construction work and arrange in building structure during progress of construction to facilitate the electrical installations that follow. 1. Set inserts and sleeves in poured-in-place concrete, masonry work, and other structural components as they are constructed. B. Sequence, coordinate, and integrate installing electrical materials and equipment for efficient flow of the Work. Coordinate installing large equipment requiring positioning before closing in the building. MELVILLE W. FULLER ELEMENTARY BASIC ELECTRICAL MATERIALS
3 1. Coordinate installation and connection to exterior underground and overhead utilities and services, including provision for electricity-metering components. 2. Comply with requirements of authorities having jurisdiction and of utility company providing electrical power and other services. C. Coordinate location of access panels and doors for electrical items that are concealed by finished surfaces. Access doors and panels are specified in Division 08 Section "Access Doors and Frames." PART 2 - PRODUCTS 2.1 MANUFACTURERS A. Manufacturers: Subject to compliance with requirements, provide products by one of the following manufacturers: 1. Manufacturers: a. Advance Products & Systems, Inc. b. Calpico, Inc. c. Metrafex Co. d. Pipeline Seal and Insulator, Inc. 2.2 MISCELLANEOUS MATERIALS A. Material: Cold-formed steel, with corrosion-resistant coating acceptable to authorities having jurisdiction. B. Metal Items for Use Outdoors or in Damp Locations: Hot-dip galvanized steel. C. Pipe Sleeves: ASTM A 53, Type E, Grade A, Schedule 40, galvanized steel, plain ends. D. Expansion Anchors: Carbon-steel wedge or sleeve type. E. Toggle Bolts: All-steel springhead type. F. Powder-Driven Threaded Studs: Heat-treated steel. 2.3 TOUCHUP PAINT A. For Equipment: Equipment manufacturer's paint selected to match installed equipment finish. B. Galvanized Surfaces: Zinc-rich paint recommended by item manufacturer. 2.4 SLEEVE A. Description: Modular sealing device, designed for field assembly, to fill annular space between sleeve and raceway. MELVILLE W. FULLER ELEMENTARY BASIC ELECTRICAL MATERIALS
4 1. Sealing Elements: EPDM interlocking links shaped to fit surface of conduit. Include type and number required for material and size of raceway. 2. Pressure Plates: Carbon steel. Include two for each sealing element. 3. Connecting Bolts and Nuts: Carbon steel with corrosion-resistant coating of length required to secure pressure plates to sealing elements. Include one for each sealing element. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements for installation. Do not proceed with installation until unsatisfactory conditions have been corrected. 3.2 ELECTRICAL EQUIPMENT INSTALLATION A. Headroom Maintenance: If mounting heights or other location criteria are not indicated, arrange and install components and equipment to provide the maximum possible headroom. B. Materials and Components: Install level, plumb, and parallel and perpendicular to other building systems and components, unless otherwise indicated. C. Equipment: Install to facilitate service, maintenance, and repair or replacement of components. Connect for ease of disconnecting, with minimum interference with other installations. D. Right of Way: Give to raceways and piping systems installed at a required slope. 3.3 FIRESTOPPING A. Apply firestopping to cable and raceway penetrations of fire-rated floor and wall assemblies to achieve fire-resistance rating of the assembly. Firestopping materials and installation requirements are specified in Division 07 Section "Penetration Firestopping." 3.4 SLEEVE INSTALLATION FOR ELECTRICAL PENETRATIONS A. Electrical penetrations occur when raceways penetrate concrete slabs, concrete or masonry walls, or fire-rated floor and wall assemblies. B. Coordinate sleeve selection and application with selection and application of firestopping specified in Division 07 Section Penetration Firestopping. C. Concrete Slabs and Walls: Install sleeves for penetrations unless core-drilled holes or formed openings are used. Install sleeves during erection of slabs and walls. D. Use pipe sleeves unless penetration arrangement requires rectangular sleeved opening. E. Rectangular sleeve Minimum Metal Thickness: MELVILLE W. FULLER ELEMENTARY BASIC ELECTRICAL MATERIALS
5 1. For sleeve cross-section rectangle perimeter less than 50 inches and no side greater than 16 inches, thickness shall be inch. 2. For sleeve cross-section rectangle perimeter equal to or greater than 50 inches, and 1 or more sides equal to or greater than 16 inches, thickness shall be inch. F. Fire-Rated Assemblies: Install sleeves for penetrations of fire-rated floor and wall assemblies unless openings compatible with firestop system used are fabricated during construction of floor or wall. G. Cut sleeves to length for mounting flush with both surfaces of walls. H. Extend sleeves installed in floors 2 inches above finished floor level. I. Seal space outside of sleeves with grout for penetrations of concrete and masonry with approved joint compound for gypsum board assemblies. J. Interior Penetrations of Non-Fire-Rated Walls and Floors: Seal annular space between sleeve and raceway or cable, using joint sealant appropriate for size, depth, and location of joint. Refer to Division 07 Section Joint Sealants for materials and installation. K. Fire-Rated-Assembly Penetrations: Maintain indicated fire rating of walls, partitions, ceilings, and floors at raceway and cable penetrations. Install sleeves and seal raceway penetration sleeves with firestop materials. Comply with Division 07 Section Penetration Firestopping. L. Roof-Penetration Sleeves: Seal penetration of individual raceways with flexible boot-type flashing units applied in coordination with roofing work. M. Aboveground, Exterior-Wall Penetrations: Seal penetrations using sleeves and mechanical sleeve seals. Select sleeve size to allow for 1-inch annular clear space between pipe and sleeve for installing mechanical sleeve seals. N. Underground, Exterior-Wall Penetrations: Install cast-iron wall pipes for sleeves. Size sleeves to allow for 1-inch annular clear space between raceway or cable and sleeve for installing mechanical sleeve seals. 3.5 CUTTING AND PATCHING A. General: Perform cutting and patching in accordance with Division 01 Section Cutting and Patching. In addition to the requirements specified in Division 01, the following requirements apply: 1. Perform cutting, fitting, and patching of electrical equipment and materials required to: a. Uncover Work to provide for installation of ill-timed Work. b. Remove and replace defective Work. c. Remove and replace Work not conforming to requirements of the Contract Documents. d. Remove samples of installed Work as specified for testing. e. Upon written instructions for the Architect, uncover and restore Work to f. provide for Architect observation of concealed work. MELVILLE W. FULLER ELEMENTARY BASIC ELECTRICAL MATERIALS
6 2. Cut, remove, and legally dispose of electrical equipment, components, and materials as indicated, including but not limited to removal of electrical items indicated to be removed and items made obsolete by the new Work. 3. Protect the structure, furnishings, finishes, and adjacent materials not indicated or scheduled to be removed. 4. Provide and maintain temporary partitions or dust barriers adequate to prevent the spread of dust and direct to adjacent areas. 5. Protection of Installed Work: During cutting and patching operations, protect adjacent installations. 6. Patch finished surfaces and building components using new materials matching materials and experienced Installers. Installers qualifications refer to the materials and methods required for the surface and building components being patched. 3.6 FIELD QUALITY CONTROL A. Inspect installed components for damage and faulty work, including the following: 1. Excavation for underground utilities. 2. Concrete bases. 3. Cutting and patching for electrical construction. 4. Touchup painting. B. Inspect installed sleeve and sleeve-seal installations and associated firestopping for damage and faulty work. 3.7 REFINISHING AND TOUCHUP PAINTING A. Refinish and touch up paint. Paint materials and application requirements are specified in Division 09 Section "Painting." 1. Clean damaged and disturbed areas and apply primer, intermediate, and finish coats to suit the degree of damage at each location. 2. Follow paint manufacturer's written instructions for surface preparation and for timing and application of successive coats. 3. Repair damage to galvanized finishes with zinc-rich paint recommended by manufacturer. 4. Repair damage to PVC or paint finishes with matching touchup coating recommended by manufacturer. 3.8 MOUNTING HEIGHTS A. Mounting heights of electrical items shall be as listed below, unless otherwise specified, or by the Architect/Engineer s field instructions. Dimensions are above finished floor, unless otherwise indicated. In areas where code requires different mount heights, as in hazardous areas, comply with code requirements. 1. General Receptacles -18 to C.L. 2. Outdoor Receptacles -24 to C.L. 3. General Tele and Data Outlets -18 to C.L. 4. General Toggle Switches -48 to C.L. MELVILLE W. FULLER ELEMENTARY BASIC ELECTRICAL MATERIALS
7 5. Fire Alarm Pull Stations -48 to C.L. 6. Security Call Stations -48 to C.L. 7. General Television Outlets -18 to C.L. 8. Patient Room Television Outlets -84 to C.L. 9. Clock and Paging Speaker Outlets -84 to C.L. 10. Fire Alarm Audio Visual Devices -80 to C.L. 11. General Wall Mounted Lights -90 to C.L. 12. Corridor Wall Sconces (>4 deep) -66 to C.L. 13. Exit Signs -90 to C.L. 14. Individual Disconnects and Starters -60 to C.L. 15. Grouped Disconnects and Starters >12 to C.L. >72 to C.L. 16. Panelboard Overcurrent Devices >12 to C.L. >72 to C.L. 17. Grouped Utility Revenue Meters >30 to C.L. >66 to C.L. 3.9 CLEANING AND PROTECTION A. On completion of installation, including outlets, fittings, and devices, inspect exposed finish. Remove burrs, dirt, paint spots, and construction debris. B. Protect equipment and installations and maintain conditions to ensure that coatings, finishes, and cabinets are without damage or deterioration at time of Substantial Completion. END OF SECTION MELVILLE W. FULLER ELEMENTARY BASIC ELECTRICAL MATERIALS
8 Project Rev.: A_03/11/14 This Page Intentionally Left Blank MELVILLE W. FULLER ELEMENTARY
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