Transcription
Ofce of Construction &Facilities ManagementElectricaldesign manualDecember 1, 2019
PG 18-10 – ELECTRICAL DESIGN MANUALDecember 1, 2019TABLE OF CONTENTSCHAPTER 1: GENERAL REQUIREMENTS . 1-11.1PURPOSE . 1-51.2RESPONSIBILITY . 1-51.3AUTHORITY HAVING JURISDICTION . 1-61.4COORDINATION . 1-61.5VA DESIGN CRITERIA . 1-71.5.1MASTER SPECIFICATIONS (PG-18-1) . 1-71.5.2DESIGN AND CONSTRUCTION PROCEDURES (PG-18-3) . 1-71.5.3NATIONAL CAD STANDARD, VHA APPLICATION GUIDE &STANDARD DETAILS (PG-18-4) . 1-71.5.4EQUIPMENT GUIDE LIST (PG-18-5) . 1-81.5.5DESIGN MANUALS (PG-18-10) . 1-81.5.6DESIGN GUIDES (PG-18-12) . 1-81.5.7DESIGN SUBMISSION INSTRUCTIONS (PG-18-15) . 1-91.5.8DESIGN REVIEW CHECKLISTS . 1-91.5.9DESIGN ALERTS . 1-91.5.10 STANDARDS ALERTS . 1-101.5.11 PHYSICAL SECURITY DESIGN MANUAL. 1-101.5.12 COST ESTIMATING MANUAL . 1-101.5.13 SUSTAINABLE DESIGN MANUAL . 1-101.5.14 SEISMIC DESIGN REQUIREMENTS (H-18-8). 1-111.5.15 FIRE PROTECTION DESIGN MANUAL. 1-111.5.16 VA HOSPITAL BUILDING SYSTEM . 1-111.5.17 COMPUTER AIDED FACILITIES MANAGEMENT REQUIREMENTS (CAFM) . 1-121.6VA BIM STANDARD . 1-121.7APPLICABLE CODES AND STANDARDS . 1-121.7.1GENERAL . 1-121.7.2LOCAL CODES AND CONDITIONS . 1-131.7.3LOCAL UTILITY . 1-131.8DESIGN REQUIREMENTS . 1-131.9CRITERIA UNIQUE TO VA. 1-141.9.1DRAWINGS . 1-141.9.2SEQUENCE OF ELECTRICAL DRAWINGS . 1-151.9.3ABBREVIATIONS AND SYMBOLS . 1-151.9.4PROPRIETARY ITEMS . 1-161.10CALCULATIONS . 1-16Table of Contentsi
PG 18-10 – ELECTRICAL DESIGN 14.101.14.111.14.12December 1, 2019GENERAL . 1-16FAULT CURRENT CALCULATIONS . 1-17PROTECTIVE DEVICE COORDINATION CALCULATIONS . 1-17ARC FLASH CALCULATIONS . 1-17LOAD CALCULATIONS . 1-18GENERATOR SIZING CALCULATIONS . 1-18VOLTAGE DROP CALCULATIONS . 1-18HARMONIC DISTORTION CALCULATIONS . 1-19LIGHTNING PROTECTION CALCULATIONS . 1-19SEISMIC BRACING. 1-19REFERENCES . 1-19DRAWINGS . 1-19EQUIPMENT BRACING. 1-19TRANSPORT SYSTEMS . 1-19FIRE ALARM SYSTEMS . 1-19RENOVATION TO EXISTING SITES AND BUILDINGS. 1-20DRAWINGS . 1-20MODIFICATION VERSUS REPLACEMENT . 1-20AGE AND PHYSICAL CONDITION . 1-20PARTS AVAILABILITY. 1-20CONDUIT AND BOXES . 1-20CONDUCTORS . 1-21WIRING DEVICES . 1-21LIGHTING FIXTURES . 1-21PANELBOARDS . 1-21GOVERNMENT RETAINED EQUIPMENT . 1-22CONTINUITY OF SERVICE. 1-22COMPATIBILITY . 1-22CHAPTER 2: RACEWAYS, WIRING, AND EQUIPMENT . 2-12.1RACEWAYS . 2-32.1.1CONCEALED AND EXPOSED. 2-32.1.2UNDERGROUND DUCTS AND CONDUITS . 2-32.1.3SPARE CONDUITS . 2-32.1.4UNDERFLOOR DUCT SYSTEMS . 2-32.1.5IMAGING ROOMS. 2-42.1.6POKE-THRUS/POWER POLES. 2-52.1.7ETHYLENE OXIDE STERILIZATION AREA . 2-52.2GROUNDING . 2-5Table of Contentsii
PG 18-10 – ELECTRICAL DESIGN MANUAL2.2.12.2.22.2.32.32.4December 1, 2019GROUNDING ELECTRODES . 2-5EQUIPMENT GROUNDING CONDUCTORS . 2-5METAL CURTAIN WALL GROUNDING . 2-5LIGHTNING PROTECTION SYSTEM . 2-6MOTOR DISCONNECT SWITCHES . 2-6CHAPTER 3: RECEPTACLE AND POWER REQUIREMENTS. 3-13.1GENERAL . 3-33.2ESSENTIAL ELECTRICAL SYSTEM CIRCUITS . 3-33.3RECEPTACLE CIRCUITS. 3-33.4SPECIFIC APPLICATIONS . 3-33.4.1GROUND FAULT CIRCUIT INTERRUPTER RECEPTACLES . 3-33.4.2SURGICAL/OPERATING ROOMS . 3-33.4.3ICU-CCU FOOT-WALL RECEPTACLES . 3-43.4.4EXTERIOR ELECTRICAL RECEPTACLES . 3-43.4.5WAITING, LOUNGE AND LOBBY AREAS . 3-53.4.6ANIMAL SURGERY ROOMS (RESEARCH) . 3-53.4.7SELF-ILLUMINATED EMERGENCY RECEPTACLES . 3-53.4.8CORRIDORS . 3-53.4.9KITCHENS. 3-53.4.10 OFFICES AND ADMINISTRATIVE AREAS . 3-53.4.11 LABORATORIES AND RESEARCH FACILITIES . 3-63.4.12 PHYSICAL MEDICINE AND REHABILITATION SERVICE . 3-63.4.13 PSYCHIATRIC PATIENT ROOMS . 3-63.4.14 STAIRWELLS. 3-63.4.15 INTERSTITIAL SPACES . 3-63.4.16 TV/CCTV POWER RECEPTACLES . 3-63.4.17 ELECTRICAL CLOSETS . 3-63.4.18 MOTORIZED TREADMILLS . 3-7CHAPTER 4: ESSENTIAL AND STANDBY ELECTRICAL POWER SYSTEMS . 4-14.1GENERAL . 4-34.2MIXED ESSENTIAL AND STANDBY ELECTRICAL POWER SYSTEMS . 4-34.3COMMISSIONING . 4-34.4EQUIPMENT AND RATINGS . 4-34.4.1GENERATORS . 4-34.4.2AUTOMATIC TRANSFER SWITCHES (ATS) . 4-44.4.3CONTROL NETWORK . 4-44.4.4DIESEL FUEL STORAGE . 4-44.4.5LOCATION. 4-4Table of Contentsiii
PG 18-10 – ELECTRICAL DESIGN 10.14.10.2December 1, 2019EXISTING FACILITIES . 4-4ESSENTIAL ELECTRICAL SYSTEMS FOR HOSPITALS. 4-5ENFORCING CODES . 4-5Life Safety Branch . 4-5Critical Branch . 4-5EQUIPMENT BRANCH. 4-7Equipment Branch Non-Delayed Automatic Connection . 4-7Equipment Branch Delayed-Automatic Connection . 4-8ALTERNATE SOURCE OF POWER . 4-10ESSENTIAL ELECTRICAL SYSTEM FOR NURSING HOMES AND LIMITED CAREFACILITIES . 4-10LIFE SAFETY BRANCH. 4-10CRITICAL BRANCH . 4-11ALTERNATE SOURCE OF POWER . 4-11ESSENTIAL ELECTRICAL SYSTEM FOR OTHER HEALTHCARE FACILITIES . 4-11ALTERNATE SOURCE OF POWER . 4-11ESSENTIAL ELECTRICAL SYSTEM FOR OTHER FACILITIES . 4-11BOILER PLANT AND ENERGY CENTER . 4-11FIRE STATION . 4-11STANDBY ELECTRICAL SYSTEM FOR MISSION CRITICAL FACILITIES . 4-12REQUIREMENTS . 4-12STANDBY SOURCE OF POWER . 4-12CHAPTER 5: ELECTRICAL POWER DISTRIBUTION . 5-15.1UTILITY SERVICE . 5-35.2PRIMARY DISTRIBUTION . 5-35.2.1GENERAL . 5-35.2.2PRIMARY SWITCHGEAR. 5-35.2.3PRIMARY CABLING . 5-45.2.4BUILDING PRIMARY-VOLTAGE DISCONNECTING MEANS. 5-45.3SECONDARY DISTRIBUTION . 5-45.3.1GENERAL . 5-45.3.2MEDIUM-TO-LOW VOLTAGE TRANSFORMERS . 5-45.3.3LOW VOLTAGE TRANSFORMERS. 5-45.3.4SWITCHGEAR, SWITCHBOARDS, AND MOTOR CONTROL CENTERS . 5-55.3.5BRANCH-CIRCUIT PANELBOARDS . 5-55.3.6TYPE 2 SURGE-PROTECTIVE DEVICES (TYPE 2 SPD) . 5-55.3.7LOADS FED FROM UNINTERRUPTIBLE POWER SUPPLY (UPS) . 5-55.4POWER MONITORING AND METERING . 5-5Table of Contentsiv
PG 18-10 – ELECTRICAL DESIGN MANUAL5.4.15.4.25.4.35.55.5.15.5.25.65.7December 1, 2019GENERAL . 5-5ENERGY CENTERS . 5-6EXISTING FACILITIES . 5-6ELECTRICAL ROOMS AND CLOSETS . 5-6GENERAL . 5-6SPACE FOR FUTURE EQUIPMENT . 5-7ELECTRICAL FACILITIES FOR SURGICAL/OPERATING ROOMS . 5-7ELECTRICAL FACILITIES FOR ELEVATORS . 5-7CHAPTER 6: SPECIAL MEDICAL AND ALARM SYSTEMS . 6-16.1GENERAL . 6-36.2PATIENT BED SERVICE WALL SYSTEMS . 6-36.3PATIENT BED SERVICE WALLS (PBSW) . 6-36.4PBSW INSTALLATION . 6-36.5PBSW APPLICATION . 6-36.6MEDICAL GAS, VACUUM, AND AIR ALARM SYSTEMS . 6-4Table of Contentsv
PG 18-10 – ELECTRICAL DESIGN MANUALCHAPTER 1:December 1, 2019GENERAL REQUIREMENTS1.1PURPOSE . 1-51.2RESPONSIBILITY . 1-51.3AUTHORITY HAVING JURISDICTION . 1-61.4COORDINATION . 1-61.5VA DESIGN CRITERIA . 1-71.5.1MASTER SPECIFICATIONS (PG-18-1) . 1-71.5.2DESIGN AND CONSTRUCTION PROCEDURES (PG-18-3) . 1-71.5.3NATIONAL CAD STANDARD, VHA APPLICATION GUIDE &STANDARD DETAILS (PG-18-4) . 1-71.5.4EQUIPMENT GUIDE LIST (PG-18-5) . 1-81.5.5DESIGN MANUALS (PG-18-10) . 1-81.5.6DESIGN GUIDES (PG-18-12) . 1-81.5.7DESIGN SUBMISSION INSTRUCTIONS (PG-18-15). 1-91.5.8DESIGN REVIEW CHECKLISTS . 1-91.5.9DESIGN ALERTS . 1-91.5.10STANDARDS ALERTS . 1-101.5.11PHYSICAL SECURITY DESIGN MANUAL. 1-101.5.12COST ESTIMATING MANUAL . 1-101.5.13SUSTAINABLE DESIGN MANUAL . 1-101.5.14SEISMIC DESIGN REQUIREMENTS (H-18-8). 1-111.5.15FIRE PROTECTION DESIGN MANUAL . 1-111.5.16VA HOSPITAL BUILDING SYSTEM . 1-111.5.17COMPUTER AIDED FACILITIES MANAGEMENT REQUIREMENTS (CAFM) . 1-121.6VA BIM STANDARD . 1-121.7APPLICABLE CODES AND STANDARDS . 1-121.7.1GENERAL . 1-121.7.2LOCAL CODES AND CONDITIONS . 1-131.7.3LOCAL UTILITY . 1-131.8DESIGN REQUIREMENTS . 1-131.9CRITERIA UNIQUE TO VA. 1-14General Requirements1-1
PG 18-10 – ELECTRICAL DESIGN MANUALDecember 1, 20191.9.1DRAWINGS . 1-141.9.2SEQUENCE OF ELECTRICAL DRAWINGS . 1-151.9.3ABBREVIATIONS AND SYMBOLS . 1-151.9.4PROPRIETARY ITEMS . 1-161.10CALCULATIONS . 1-161.10.1GENERAL . 1-161.10.2FAULT CURRENT CALCULATIONS . 1-171.10.3PROTECTIVE DEVICE COORDINATION CALCULATIONS . 1-171.10.4ARC FLASH CALCULATIONS . 1-171.10.5LOAD CALCULATIONS . 1-181.10.6GENERATOR SIZING CALCULATIONS . 1-181.10.7VOLTAGE DROP CALCULATIONS . 1-181.10.8HARMONIC DISTORTION CALCULATIONS . 1-191.10.9LIGHTNING PROTECTION CALCULATIONS . 1-191.11SEISMIC BRACING. 1-191.11.1REFERENCES . 1-191.11.2DRAWINGS . 1-191.11.3EQUIPMENT BRACING. 1-191.12TRANSPORT SYSTEMS . 1-191.13FIRE ALARM SYSTEMS . 1-191.14RENOVATION TO EXISTING SITES AND BUILDINGS. 1-201.14.1DRAWINGS . 1-201.14.2MODIFICATION VERSUS REPLACEMENT . 1-201.14.3AGE AND PHYSICAL CONDITION . 1-201.14.4PARTS AVAILABILITY. 1-201.14.5CONDUIT AND BOXES . 1-201.14.6CONDUCTORS . 1-211.14.7WIRING DEVICES . 1-211.14.8LIGHTING FIXTURES . 1-211.14.9PANELBOARDS . 1-211.14.10GOVERNMENT RETAINED EQUIPMENT . 1-22General Requirements1-2
PG 18-10 – ELECTRICAL DESIGN MANUALDecember 1, 20191.14.11CONTINUITY OF SERVICE. 1-221.14.12COMPATIBILITY . 1-22General Requirements1-3
PG 18-10 – ELECTRICAL DESIGN MANUAL1.1December 1, 2019PURPOSEThis manual is intended as a guide for electrical engineers and designers (hereafter referred asthe A/E) for the planning and design of the electrical power distribution and related systems(hereinafter referred to as systems) at Department of Veterans Affairs (VA) facilities which aredesigned and constructed with VA construction budget, as well as owned, operated andmaintained by VA.VA requires the A/E to read, understand, and use this manual in the planning and design of thesystems in VA owned construction projects – major, minor and non-recurring-maintenance(NRM).In order to provide the latitude needed to incorporate new technologies and concepts, or toaccommodate adverse existing construction conditions, technical deviations from thestipulations of this manual may be made. Deviation request(s) may be made only if a safe,reliable, and energy-efficient design shall result. Such deviation request(s) must be approvedby VA’s Contracting Officer (CO) and Authority Having Jurisdiction (AHJ). The A/E shall submitdeviation request(s) in writing to CO and AHJ, through VA’s Project Manager (PM) andContracting Officer Representative (COR). Veterans Health Administration (VHA) may requirespecific web-based procedure for this action; therefore, the A/E shall confirm specificprocedure to submit deviation request(s) with CO, PM and COR.At the minimum, request for deviation(s) shall contain the following elements: Narrative detailing reasons for the deviations Narrative detailing the design and technical information relating to the deviations Statement affirming that deviations shall comply with all public laws, federalregulations, executive orders, and latest applicable codes Design drawings of the deviations (if applicable) Engineering calculations (if applicable) Estimate of cost impact caused by the deviations Estimate of schedule impact caused by the deviations Supporting documents such as existing site survey photographs, drawings anddocuments (if applicable)Deviation request(s) shall be considered approved only after the A/E has received the writtenapproval with signature from CO and AHJ.1.2RESPONSIBILITYThe A/E shall provide all necessary professional services to perform planning and design of thesystems for the project. The A/E shall be responsible and liable for the professional design inaccordance with the contract, safe and practical engineering practices, applicable VA designGeneral Requirements1-5
PG 18-10 – ELECTRICAL DESIGN MANUALDecember 1, 2019criteria, VA project-specific requirements (if any), and latest applicable codes. The A/E shall beresponsible and liable for the content of the construction contract document.1.3AUTHORITY HAVING JURISDI
PG 18-10 – ELECTRICAL DESIGN MANUAL December 1, 2019 . General Requirements 1-5 . 1.1 PURPOSE . This manual is intended as a guide for electrical engineers and designers (hereafter
