Section 260500 Common Work Results for Electrical

SECTION 260500 COMMON WORK RESULTS FOR ELECTRICAL PART 1 GENERAL 1.1 SUMMARY A. Section Includes: 1. Electrical equipment coordination and installation. 2. Common electrical installation requirements. 3. Demolition. 4. Cutting and patching for electrical construction. 5. Touchup painting. 6. Disposition of existing materials and equipment. 1.2 QUALITY ASSURANCE A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Arti- cle 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use. B. Comply with NFPA 70. C. Comply with State and /or City Code requirements. D. All materials shall meet the standards of the following institutes where applicable: 1. National Fire Protection Association (NFPA) 2. American Society of Testing Materials (ASTM) 3. American National Standards Institute (ANSI) 4. National Electrical Manufacturer’s Association (NEMA) 5. Institute of Electrical and Electronic Engineers (IEEE) 1.3 COORDINATION A. Coordinate arrangement, mounting, and support of electrical equipment: 1. To allow maximum possible headroom unless specific mounting heights that reduce headroom are indicated. 2. To provide for ease of disconnecting the equipment with minimum interference to other installations. 3. To allow right of way for piping and conduit installed at required slope. 4. So connecting raceways, cables, wireways, cable trays, and busways will be clear of obstruc- tions and of the working and access space of other equipment. B. Coordinate installation of required supporting devices and set sleeves in cast-in-place concrete, masonry walls, and other structural components as they are constructed. C. Coordinate location of access panels and doors for electrical items that are behind finished surfac- es or otherwise concealed. Access doors and panels are specified in Section 083100 "Access Doors and Panels." D. Coordinate sleeve selection and application with selection and application of firestopping specified in Section 078400 "Firestopping." HENNEPIN COUNTY GUIDE SPECIFICATIONS Common Work Results for Electrical December 2016 260500 - 1 E. Coordinate chases, slots, inserts, sleeves, and openings with general construction work and ar- range 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. 2. Core drilling through post-tensioned slab: The existing post-tensioned slabs contain post- tensioned tendons that must not be damaged or broken. No nailing, drilling, cutting or other disruption to the slab is allowed without prior written approval by the structural engineer. Con- tractor shall positively locate the existing tendons and submit to the structural engineer for approval a written procedure, including plans showing existing tendon locations and proposed disruption of the slab. F. 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. G. Coordinate electrical testing of electrical, mechanical, and architectural items, so equipment and systems that are functionally interdependent are tested to demonstrate successful interoperability. Document results of said testing. 1.4 DRAWINGS A. The drawings indicate the arrangements of electrical equipment. Review architectural drawings and details for door swings, cabinets, counters and built-in equipment; conditions indicated on architectural plans shall govern. Coordinate installation of electrical equipment with structural system and mechanical equipment and access thereto. Coordinate installation of recessed electrical equipment with concealed ductwork and piping, and wall thickness. Devices, raceway, and electrical equipment in finished and/or public spaces shall be recessed or concealed unless otherwise noted. B. Do not scale drawings. Obtain dimensions for layout of equipment from Architectural plans and details unless indicated on Electrical plans. C. Bring discrepancies shown on different drawings, between drawings and specifications or between documents and field conditions to the immediate attention of the Architect. D. Equipment layout is based on one manufacturer's product or from composite dimensions from mul- tiple manufacturers. Where equipment selected for use on the job differs from layout, coordinate space requirements and connection arrangements. 1.5 EQUIPMENT REQUIRING ELECTRICAL SERVICE A. Review specification sections and drawings for equipment requiring electrical service. Provide service to and make connections to equipment requiring electrical service. B. Drawings indicate design loads, voltages and corresponding control equipment, feeders, and overcurrent devices. If equipment actually furnished have loads other than those indicated on the drawings or specified herein, control equipment, feeders, and overcurrent devices shall be adjusted in size accordingly at no additional cost to the owner. Such adjustment shall be subject to the review of the Architect. C. Incidental items not indicated on Drawing or mentioned in Specifications but that can legitimately and reasonably be inferred to belong to the Work or be necessary in good practice to provide complete system, shall be provided though not itemized here in detail. 1.6 SITE INVESTIGATION A. Prior to submitting bids of the project, visit the site of the work to become aware of existing conditions which may affect the cost of the project. Where work under this project requires extension, re- location, reconnections or modifications to existing equipment or systems, the existing equipment or systems shall be restored to their original condition, with the exception of the work under this contract, before the completion of this project. Existing systems and conditions which are not de- tailed on the drawings must still be restored to their original condition. HENNEPIN COUNTY GUIDE SPECIFICATIONS Common Work Results for Electrical December 2016 260500 - 2 1.7 EQUIVALENTS AND SUBSTITUTIONS A. The applicable paragraphs for General Requirements, Division 01 apply herein. B. Basis of Design: The manufacturer’s name and product listed on the drawings, or listed first of several names in these Specifications, is used as a basis for design to establish space requirements, a standard of quality and performance. C. Equivalents: Products of one or more other manufacturer’s names listed in these Specifications following the words “or equivalent by” may be selected, subject to paragraph below titled “Contrac- tor’s Responsibility for Equivalent and Substitutions”. D. Other Options: 1. For products specified by naming only one manufacturer, refer to paragraph below under “Substitutions”. 2. For products specified only by performance characteristics or reference standards, select any manufacturer meeting the requirements. E. Substitutions: Requests for acceptance of a product of manufacturer’s name not listed in these Specifications will be considered if any one of the following conditions is met: 1. The named product is not available because of strikes or discontinuance of manufacture; and the proposed product is equivalent to the named product. 2. The proposed product is superior to the named product, in the opinion of the Owner’s Repre- sentative. 3. The proposed product is equivalent to the named product and its use will be to the advantage of the Owner, by the Owner receiving an equitable credit or cost savings. The Owner’s Repre- sentative reserves the right to reject any substitution. 4. Submit proposed substitutions with bid along with alternate price, complete descriptive data and a comparison of the substitute manufacturer’s product with specified product. Request for acceptance of a product of manufacturer’s name not listed in these Specifications, is subject to the paragraph titled “Contractor’s Responsibility Equivalents and Substitutions”. F. Contractor’s Responsibility for Equivalents and Substitutions: 1. Items submitted as a substitution to the Basis of Design or listed general equivalents shall be identified as such and shall include a written request for substitution indicating the following: a. Contract Price adjustment. b. Contract time adjustment. c. Item by item breakdown of differences between Basis of Design and substituted item. d. Operation, maintenance and energy cost difference. 2. Products of manufacturer must match the features, construction, performance and size of those selected for design. Standard catalogued may require certain modifications to meet specified requirements. 3. The responsibility for providing that specified requirements have been met remains with the manufacturer and Contractor. Should the substituted item fail to perform in accordance with the Specifications, replace same with the originally specified item without extra cost to the contract. 4. When requesting review of an equivalent or substituted product, submit a comparison chart listing features, construction, performance and sizes of name product versus equivalent or substituted product. 5. Submittals for review of an equivalent or substituted product will be reviewed for acceptability when the above requirements have been met. Contractor shall be responsible for costs in- curred by the Architect and Engineer for review of equivalency beyond initial review. 6. Coordinate the installation

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