Section Electrical Provisions for Plumbing Work Downtown Cary Park Construction Documents Page 1 of 6

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1 Section 0 Electrical Provisions for Plumbing Work 0.0 Page of 0 0 RELATED DOCUMENTS SECTION 0 - ELECTRICAL PROVISIONS FOR PLUMBING WORK PART - GENERAL Drawings and general provisions of Contract, including General and Supplementary Conditions and Division- Specification sections, apply to work of this section. The requirements specified herein shall govern all Sections in Division, whether stated therein or not. Where items specified in the other sections of this Division conflict with requirements of this Section, the former shall govern. DESCRIPTION OF WORK Work includes, but is not necessarily limited to the following: Provide electrical heating elements in plumbing equipment. Provide motor starters for furnished equipment where starters are required for the intended application and are not provided under Division. Starters shall be sized in accordance with the latest edition of the National Equipment Manufacturers Association (NEMA) standard ratings for magnetic starters, and the National Electrical Code (NEC). NEMA Starter Sizes for Motors Maximum HP for System Voltage (V)/ Phase (PH) NEMA Starter Size 0V/PH 0V/PH 0V/PH 0V/PH 0V/PH 00 / -/ -/ 0 -/ -/ -/ -/ Provide disconnect switches for all furnished equipment. Disconnect switches shall be sized in accordance with the latest edition of the National Electrical Code (NEC) for single motor applications as follows: Switch Rating Amps (A) Disconnect Switch Sizes for Motors Maximum HP at System Voltage (V))/ Phase (PH) 0V/PH 0V/PH 0V/PH 0V/PH 0V/PH 0V/PH 0A -/ -/ 0A -/ 0 0A 0 00A Electrical Provisions for Plumbing; //0 July, 0

2 Section 0 Electrical Provisions for Plumbing Work 0.0 Page of Switch Rating Amps (A) Disconnect Switch Sizes for Motors Maximum HP at System Voltage (V))/ Phase (PH) 0V/PH 0V/PH 0V/PH 0V/PH 0V/PH 0V/PH 0 00A A Disconnect switches shall be sized for all other applications based on total kw rating of the equipment as follows: Switch Rating Amps (A) 0V/ PH Disconnect Switch Sizes for Equipment Maximum kw at System Voltage (V)/ Phase (PH) 0V/ PH 0V/ PH V/ PH 0V/ PH 0V/ PH 0V/ PH 0A A A A A A Dual element fuses shall be provided with disconnect switches. Fuses shall be sized based on the nameplate rating for the equipment. Equipment enclosures for disconnect switches, starters, variable frequency drives, control panels and any other panel enclosures housing electrical equipment shall be rated based on NEMA standard ratings. Panel enclosures shall be suitable for the environment in which they will be installed. Unless noted otherwise, provide NEMA rated enclosures based on the following environment conditions: NEMA Type NEMA Enclosure Ratings for Electrical Equipment Environment Condition Indoors only, dry, low dust, and non-corrosive environment R Outdoors, weatherproof and rainproof Outdoors, watertight and raintight X Same as plus corrosion resistant Hazardous locations Class I, Groups A, B, C, or D Hazardous locations Class II, Groups E, F, or G Indoors subject to circulating non-hazardous dust, or dripping non-corrosive liquids Exception: NEMA enclosures for State of North Carolina projects are prohibited. Provide all single phase interlock and control wiring required for sequenced operation of plumbing devices provided for plumbing systems under Division. Under Divisions -, a source of power for these devices shall be provided and extended to the devices under Division. Make all power wiring connections for plumbing equipment as recommended by the equipment Electrical Provisions for Plumbing; //0 July, 0

3 Section 0 Electrical Provisions for Plumbing Work 0.0 Page of manufacturer. Under Divisions -, power wiring to the line side of a disconnecting means provided and installed under Division will be provided. Some items of equipment may require conductor and/or raceway combinations different from the supply conductors provided under Division - to the equipment disconnect; coordinate and provide connections as recommended by the equipment manufacturer. Division Contractor is responsible for providing and installing fuses in disconnects that supply Division equipment. Provide any required power wiring not specifically shown on the electrical drawings (E-Sheets) or specified in Divisions -. QUALITY ASSURANCE Coordination with Electrical Work: Wherever possible, match elements of electrical provisions of plumbing work with similar elements of electrical work specified in Divisions - sections. Comply with requirements of applicable Divisions - sections for raceways and wiring methods associated with final electrical connections to equipment installed under this Division. Standards: For electrical equipment and products, comply with applicable NEMA standards and refer to NEMA standards for definitions of terminology herein. Comply with NFPA 0 (NEC) for workmanship and installation requirements. Comply with NFPA 0E while performing any electrical work. (Referenced in OSHA CFR Part, Subpart S, Appendix A, NFPA 0E is considered by OSHA as the industry practice for electrical safety.) SUBMITTALS General: Submittals shall demonstrate compliance with technical requirements by reference to each subsection of this specification. Where a submitted item does not comply fully with each and every requirement of the Specifications, the submittal shall clearly indicate such deviations. Identification requirements for non-complying features of items are very specific. See Section 0 for exact requirements. Manufacturer's Data: Submit manufacturer's technical product data and installation instructions for electrical materials and products. Source Limitations: Provide motor starters, combination motor starters, and disconnects through one source from a single manufacturer Electrical Provisions for Plumbing; //0 July, 0

4 Section 0 Electrical Provisions for Plumbing Work 0.0 Page of PART - PRODUCTS CIRCUIT AND MOTOR DISCONNECTS Safety Switches: Provide surface-mounted, heavy duty, steel enclosed safety switches, of types, voltage rating, current rating, and number of poles indicated on this Section. Switches with no drawing indication of number of poles are three pole types. Switches shall be fusible type, rated as follows unless otherwise specified: For 0Y/ V.: Use 00 Volt type, with neutral and grounding bus. For 0Y/0 V.: Use 0 Volt type, with neutral and grounding bus. For 0/0 V.: Use 0 Volt type, with neutral and grounding bus. Where a neutral is not provided to the specific utilization equipment served, the neutral bus can be bonded to the enclosure and used as a grounding bus. Provide horsepower rated switches incorporating quick-make, quick-break type switches constructed so that switch blades are visible in OFF position with door open. Equip with operating handle which is integral part of enclosure base and whose operating position is easily recognizable. Internal current carrying components shall be high-conductivity copper; switch contacts shall be silver-tungsten type. Fuse holders shall have positive pressure type reinforced fuse clips. Where non-fused disconnect switches are indicated, provide solid copper bus bars in lieu of fuses. Provide NEMA Type enclosure unless otherwise indicated on the Drawings; provide NEMA Type R enclosure where the Drawings indicate weatherproof. Other enclosure types shall be furnished if specifically indicated on the Drawings. Provide switches that may be locked in either the ON or OFF condition with a /" shackle hasp-type lock. Safety switches shall have door interlocks that prevent the door from opening when the operating handle of the switch is in the on position. Manual defeat mechanisms shall be provided for the interlocks. Provide two-pole interlock switches for all disconnects that are used with utilization equipment requiring control connections provided from an alternate power source. The interlock switch is to be configured such that when the disconnect is open the interlock switch is open. Provide additional interlock switches, auxiliary contacts, plumbing key interlocks, or other accessories as may described by the Drawings. For all outdoor equipment, provide a fused weatherproof disconnect switch, sized and fused in accordance with manufacturer's requirements. Fuses shall be furnished by the Contractor. Fuses shall be current limiting type with a minimum AIC rating of 0,000 AMP. The contractor shall furnish Owner with one complete set of spare fuses at the completion of the project Electrical Provisions for Plumbing; //0 July, 0

5 Section 0 Electrical Provisions for Plumbing Work 0.0 Page of ELECTRIC HEATING ELEMENTS Where electric resistance coils and other heating elements are included in plumbing equipment or otherwise indicated as plumbing work, and except as otherwise indicated, provide 0 Volt units where rating is less than kw, higher-voltage single-phase units where rating is kw but less than kw, and higher-voltage -phase units where rating is kw and greater. PART - EXECUTION GENERAL Coordinate the exact location of all equipment disconnects with Divisions - to ensure that disconnects are located within sight of plumbing equipment. Extend power wiring circuits from load side of termination points provided under Divisions - to each item of plumbing equipment requiring electrical power. All wiring shall be installed in raceway in compliance with Division. Utilize flexible metallic conduit for weatherproof for outdoor locations. Provide all necessary clamps, fitting, connectors, raceways, circuit conductors, etc., for a completely operational system. INSTALLATION OF CIRCUIT AND MOTOR DISCONNECTS Install disconnects as indicated, complying with manufacturer's written instructions, applicable requirements of NEC, NEMA, and NECA's "Standard of Installation," and in accordance with recognized industry practices. Coordinate placement of disconnects with electrical raceway and cable work, as necessary for proper interface. Coordinate exact location of disconnects with equipment electrical connection point. Locate disconnects so that they are readily accessible after all project elements are installed. Location selected for disconnects must permit complete opening of the door or cover to the maximum amount permitted by the design of the switch enclosure. Install disconnects for use with motor-driven appliances and motors within sight of the controllers, as indicated on the Drawings. In addition, each motor shall be provided with an approved disconnecting device within sight of the respective equipment as required by the NEC even though not specifically indicated on the Drawings. Disconnects installed for use with controllers may serve as the disconnecting means for the motor if it is in sight from the motor location and the driven machinery location. GROUNDING Provide equipment grounding connections, sufficiently tight to assure a permanent and effective ground, for electrical combination motor starters. All combination starters shall be grounded by means of a separate insulated grounding conductor, run with the ungrounded conductors, and bonded to the starter enclosure by means of a dedicated grounding screw terminal or bus. FIELD QUALITY CONTROL Subsequent to completion of installation of disconnects and motor starters, energize circuitry and demonstrate capability and compliance with requirements. Where possible, correct malfunctioning units at project site, then retest to demonstrate compliance; otherwise remove and replace with new units and retest Electrical Provisions for Plumbing; //0 July, 0

6 Section 0 Electrical Provisions for Plumbing Work 0.0 Page of OWNER INSTRUCTION AND TRAINING Provide Owner instruction and training in accordance with Section 0. PART MEASUREMENT AND PAYMENT.0 Method of Measurement: Measurement of Electrical Provisions for Plumbing Work related items (Section 0) shall be measured for payment per the unit indicated in the Itemized Proposal..0 Basis of Payment: Payment of Electrical Provisions for Plumbing Work related items (Section 0) shall be made at the contract unit price indicated in the Itemized Proposal. The price shall constitute full compensation for furnishing labor, materials, equipment, incidental items, expenses, complete and in place as specified by the Contract Documents and Standard Specifications. END OF SECTION Electrical Provisions for Plumbing; //0 July, 0