UNIVERSITY OF ALABAMA AT BIRMINGHAM DEPARTMENT OF FACILITIES PLANNING FACiliTIES STANDARD NAME: Emergency Standby Generators NUMBER: 18200 ORIGINAL DATE: 01-Sep-1998 REVISION DATE: 03-Jul-2007 PURPOSE: 1. The general purpose of each Facilities Standard is to provide minimal criteria for construction materials at University facilities regarding code compliance. warranty. approved products. execution, and uniformity. 2. To protect the health and safety of patients, visitors, students, faculty. and staff, in addition to protecting non-project UAB property, all construction must be in accordance with NFPA 241 safeguarding construction, alteration, and demolition operations; International Building Code regarding site work, demolition. and construction; NFPA 101 Ute Safety Code; NFPA 110 Power Systems - Emergencyand Standby; NFPA 99 - Health Care Facilities 3. Construction safety is the responsibilityof the contractor in accordancewith the regulations and codes of the agency havingjurisdiction. and accordingto the guidelines adapted by OSHA. 4. The Emergency Standby Generator Facilities Standard establishes a series of guidelines for specifying this particular item on any construction project at the University. This Facilities Standard is not to be regarded as a specification. GENERAL: 1. The Engineer shall furnish a suitability study for matching the generator type to the application (type and size of connected loads, availability,and suitabilityof fuel system). 2. The Engineer shall check with the Authority having jurisdiction in the City of Birmingham whether the Electrical Fire Pump shall be fed from emergency power because the utility service is unreliable at the particular location before sizing the emergency generator. 3. The Engineer shall furnish a sizing calculation to match the size of the generator set to the variety of the connected electrical loads. Starting requirements of each motor must be considered, and a proposed starting sequence and type of starting shall be specified. 4. Natural gas, where available. is the UAB preferred supply for generators. Any alternate fuel supply shall be first approved by UAB after the Engineerfurnishes the above justification study. 5. Spark-ignited reciprocating generators shall be suitable for multi-fuel supply (propane gas and natural gas). Diesel fuel systems shall be passive (not pressurized). UAB is in a fire district which limitsthe amount of fuel that can be stored above ground (base tank) to 660 gallons. DEVELOPEDBY AND INTENDED FORUAB USE ONLY NOT FOR OUTSIDE DISTRIBUTION PAGE NO. 16200.1
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UNIVERSITY OF ALABAMA AT BIRMINGHAMDEPARTMENT OF FACILITIES PLANNING
ORIGINAL DATE: 01-Sep-1998REVISION DATE: 03-Jul-2007
PURPOSE:
1. The general purpose of each Facilities Standard is to provide minimal criteria for constructionmaterials at University facilities regarding code compliance. warranty. approved products.execution,and uniformity.
2. To protect the health and safety of patients, visitors, students, faculty. and staff, in addition toprotecting non-project UABproperty, all construction must be in accordance with NFPA 241safeguarding construction, alteration, and demolition operations; International Building Coderegarding site work, demolition. and construction; NFPA 101 Ute Safety Code; NFPA 110PowerSystems- Emergencyand Standby; NFPA 99- HealthCare Facilities
3. Construction safety is the responsibilityof the contractorin accordancewith the regulationsandcodes of the agency havingjurisdiction.and accordingto the guidelinesadapted by OSHA.
4. The Emergency Standby Generator Facilities Standard establishesa series of guidelines forspecifying this particular item on any construction project at the University. This FacilitiesStandard is not to be regarded as a specification.
GENERAL:
1. The Engineer shall furnish a suitabilitystudy for matching the generator type to the application(type and size of connected loads,availability,and suitabilityof fuel system).
2. The Engineer shall check with the Authority having jurisdiction in the City of Birminghamwhether the Electrical Fire Pump shall be fed from emergency power because the utilityservice is unreliable at the particular location before sizing the emergency generator.
3. The Engineer shall furnish a sizing calculation to match the size of the generator set to thevariety of the connected electrical loads. Starting requirements of each motor must beconsidered, and a proposed starting sequence and type of starting shall be specified.
4. Natural gas, where available. is the UAB preferred supply for generators. Any alternate fuelsupply shall be first approved by UAB after the Engineerfurnishes the abovejustification study.
5. Spark-ignited reciprocatinggenerators shall be suitable for multi-fuel supply (propane gas andnatural gas). Diesel fuel systems shall be passive (not pressurized). UAB is in a fire districtwhich limitsthe amount of fuel that can be stored above ground (base tank) to 660 gallons.
DEVELOPEDBY AND INTENDED FORUAB USE ONLYNOT FOROUTSIDE DISTRIBUTION
PAGE NO. 16200.1
NAME: Emergency Standby GeneratorsNUMBER: 16200
ORIGINAL DATE: 01-Sep-1998REVISION DATE: 03-Jul-2007
6. Diesel-fueledand spark-ignitedgenerator sets shall use PMG (permanent magnet generator)when handling non-linear loads to provide a reliable excitationpower source and to enhancemotor starting and short-circuitperformance. An isochronous governor shall be used whensupplying sensitive loads, particular1yUPS (uninterrupted power supply) systems. To ensurecompatibility,bid documents for generators sets used mainly in UPS applications shallreference both generator and UPS systems. The proper voltage regulator type shall bespecified foreach application.
7. The Engineer shall specify the minimumacceptable performance parameters of the selectedgenerator (voltage regulation from no load to full load, random voltage variation, frequencyregulation, random frequency variation,electromagnetic attenuation, total harmonic distortion,telephone influencefactor, etc.). In general, the larger the set, the lowerthe variation.The Staterequires a Level1 system withNFPA110 requiredalarms.
8. For larger generators, primarilyfor hospital and medical buildings,the Engineer shall specify"Standby Rated" generators withthe base bid. He shall ask for alternate prices for "ContinuousDuty"and for "PrimeDuty"rated generators.
Such generators shall be provided with a microprocessor-based monitoring,metering, andcontrol system, thus eliminatingthe discrete voltage regulator, governor, and protective relaycomponents. This type of system willeliminate separate parallelingcontrol devices, such assynchronizers and load-sharingcontrols.The system shall utilizea true distributedlogicdesign.That is, each major component shall include sufficient control and logic to operateautonomously in the event of failure of the other system components. Criticaland LifeSafetybranch automatic transfer switches and equipment branch transfer switches that feedmedical refrigerators and freezers (compressors) shall be of the closed-transitiontype. Allautomatic transfer switches shall have bypass isolation.
The minimum components of the engine generator set mounted control panel shall be asfollows:voltmeter, ammeter, frequency meter, running hours, all engine safety indicators,faultalarm, and temperature.
A dry contact shall be providedfor remote monitoringof the generator, both for common troubleand for generator running.Contacts shall be wiredto the nearest buildingsecuritybackboard forUABsecurity personnel signal conversion and for transmittingto the UABPolice Departmentvia telephone lines. Maintenance personnel routinely notify UAB Police before conductinggenerator exercising.
9. The Engineer shall specify equipment layout,fuel tanks, mountingpads, intake louvers, mufflertypes, and connecting piping.Special attention shall be paid to diesel fuel piping. Pressurizedsystems can be hazardous to piping.A passive system, where pumps are running onlywhenthe generator is running, is desirable. Vibration and noise factors relative to the facility'sstructural design shall be addressed carefully, specificallythose that may affect operationalgroup adjacencies. Spring isolators shall be provided, and isolated concrete pads shall beconsidered for the generator set skid. Fuel, exhaust, and electricalconnections shall include aflexiblelink.Exhaustcriticalsilencerand fieldpipingsupporton springsshallbe considered. '
DEVELOPEDBY AND INTENDED FORUAB USE ONLYNOT FOROUTSIDE DISTRIBUTION
PAGE NO. 16200.2
NAME: Emergency Standby GeneratorsNUMBER: 16200
ORIGINAL DATE: 01-Sep-1998REVISION DATE: 03-Jul-2007
2. ATS (AutomaticTransfer Switches)approved manufacturers:A. Generator vendorB. AscoC. ZenithD. Russell Electric
EXECUTION:
1. Generator and ATS manufacturer's productiontest results shall be furnished at rated load andpower factor. Site tests shall be performed and vibration, exhaust leaks, voltage, ampere,frequency, and phase rotation shall be checked. Automaticshutdown and automatic start-upshall be demonstrated by means of a simulated power outage to test remote-automaticstartingtransfer of the load. An external load bank shall be provided and connected to the system ifbuildingload is unavailable to load the generator to its nameplate rating. Noise level shall bechecked forconformationto the generator specifications.
2. Bondingjumpers and system grounding electrode conductor shall be provided,and lowvoltagegenerator neutral shall be grounded per Code.
END OF STANDARD
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DEVELOPED BY AND INTENDED FOR UAB USE ONLYNOT FOR OUTSIDE DISTRIBUTION
