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State of North Carolina STATE OF NORTH CAROLINA DEPARTMENT OF ADMINISTRATION STATE CONSTRUCTION OFFICE ELECTRICAL GUIDELINES AND POLICIES 2017 Electrical Guidelines and Policies - 2017 The following guidelines and policies are established to aid the Designer during design development and specification writing. Contents herein are not to be included in Designer’s specification by reproduction, but shall be used as a guide only. Variances of these guidelines and policies shall be discussed with the State Construction Office prior to submitting design to alleviate possible extra work on the Designer’s part. The following replaces the Electrical Guidelines and Policies --2011 in its entirety. - 1 - Electrical Guidelines and Policies - 2017 TABLE OF CONTENTS 00 00 01 SCOPE ........................................................................................................................................ 4 26 01 00 RECOGNIZED STANDARDS ..................................................................................................................... 4 26 01 00 BASIC ELECTRICAL REQUIREMENTS ....................................................................................................... 5 26 02 05 DIVISION OF WORK ................................................................................................................................ 7 26 05 00 EXISTING ELECTRICAL CONDITIONS ENCOUNTERED DURING REMODELING, ADDITIONS, OR ALTERATIONS ......................................................................................................................................... 9 26 05 13 MEDIUM-VOLTAGE CABLE ................................................................................................................... 10 26 05 19 BUILDING WIRE AND CABLE ................................................................................................................. 13 26 05 26 GROUNDING AND BONDING ............................................................................................................... 15 26 05 29 SUPPORTING DEVICES .......................................................................................................................... 15 26 05 33 CONDUIT .............................................................................................................................................. 16 26 05 43 DUCT BANKS......................................................................................................................................... 19 26 05 53 ELECTRICAL IDENTIFICATION ............................................................................................................... 19 26 08 00 ELECTRICAL TESTING AND COMMISSIONING ...................................................................................... 20 26 11 00 UNIT SUBSTATIONS .............................................................................................................................. 22 26 12 19 PAD MOUNTED SERVICE TRANSFORMERS .......................................................................................... 23 26 18 00 LOADBREAK INTERRUPTER AND PADMOUNT SECTIONALIZING SWITCHES ........................................ 25 26 18 01 OIL INTERRUPTER SWITCHES ............................................................................................................... 25 26 22 00 DRY TYPE TRANSFORMERS .................................................................................................................. 26 26 24 13 DISTRIBUTION SWITCHBOARDS (600 Volt) .......................................................................................... 26 26 24 16 PANELBOARDS ..................................................................................................................................... 27 26 24 19 MOTOR CONTROL CENTERS ................................................................................................................. 28 26 27 26 WIRING DEVICES .................................................................................................................................. 29 26 28 13 FUSES (600 VOLTS OR LESS) ................................................................................................................. 30 26 28 16 ENCLOSED SWITCHES ........................................................................................................................... 30 26 32 13 PACKAGED ENGINE GENERATOR SYSTEMS ......................................................................................... 31 26 33 00 STATIC EMERGENCY POWER SUPPLIES (Central Inverter Systems) ..................................................... 36 26 36 00 AUTOMATIC TRANSFER SWITCHES ...................................................................................................... 36 26 41 00 LIGHTNING PROTECTION SYSTEMS ...................................................................................................... 38 26 43 13 SURGE PROTECTIVE DEVICES (SPD) ..................................................................................................... 39 26 51 00 INTERIOR LUMINAIRES ......................................................................................................................... 39 26 56 00 SITE and EXTERIOR LIGHTING .............................................................................................................. 43 27 05 00 TELECOMMUNICATIONS ...................................................................................................................... 44 28 31 13 FIRE ALARM SYSTEMS .......................................................................................................................... 44 33 71 00 OVERHEAD POWER DISTRIBUTION ...................................................................................................... 45 - 2 - Electrical Guidelines and Policies - 2017 APPENDIX PAGE NO. Minimum Standards for Residential Projects ................................................................. 47 DETAILS Lighting Life Cycle Cost Analysis (LCCA) .................................................................. E-00 Generator System Wiring ................................................................................................ E-1 Emergency Generator Outside the Building - 100% Transfer ...................................... E-2 Emergency Generator Outside the Building - Not 100% Transfer ............................... E-3 Emergency Generator Inside the Building - 100% Transfer ......................................... E-4 Emergency Generator Inside the Building - Not 100% Transfer .................................. E-5 Typical Panelboard Schedule ........................................................................................ E-6 Typical Grounding Detail for Three Phase Pad Mounted Transformers .................... E-7 Load Tabulation Breakdown ........................................................................................... E-8 Working Clearance for Electrical Equipment ................................................................. E-9 Dedicated Space for Electrical Equipment .................................................................. E-10 Report of Primary Voltage Cable Testing (Standard Form). ..................................... E-11 Fire Pump Controller Grounding Detail ....................................................................... E-12 Service Equipment Grounding Detail .......................................................................... E-13 Dry Type Transformer Grounding Detail ..................................................................... E-14 Receptacle Grounding Detail ....................................................................................... E-15 Lighting Fixture Mounting Detail .................................................................................. E-16 Typical Exterior Pole Base Detail ................................................................................. E-17 Electrical Equipment Connection ................................................................................. E-18 - 3 - Electrical Guidelines and Policies - 2017 00 00 01 SCOPE 1. These Guidelines and Policies apply to all State Government funded projects on state owned property, Community College projects, except for “Code Only” projects and certain projects exempted by legislation or other approved policies. Refer to NC State Construction Manual. 26 01 00 RECOGNIZED STANDARDS a) AEIC (American Association of Edison Illuminating Companies) b) ANSI C82.11 (American National Standards Institute for Fluorescent Ballasts) c) ASHRAE/IES (90.1 energy conservation code) d) ASTM (American Society for Testing and Materials) e) BOCA (Building Officials Code Administrators) f) DOE United States Department of Energy g) EPA Environmental Protection Agency h) EPAct (Energy Policy Act of the US Department of Energy) i) ICBO (International Conference of Building Officials) j) ICC (International Code Council) k) ICEA (Insulated Cable Engineers Association) l) IEEE (Institute of Electrical and Electronic Engineers) m) IES (Illuminating Engineering Society) n) NCAC (North Carolina Administrative Code) o) NCCM N.C. State Construction Manual p) NCBC (N.C. Building Code), also NCSBC (N.C. State Building Code) q) NCBCC (N.C. Building Code Council) r) NEC (National Electrical Code) as amended by NC Building Code Council s) NECA (National Electrical Contractor Association) t) NEIS (National Electrical Installation Standards) u) NEMA (National Electrical Manufacturers
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