14
Technical Data TD00405018E
Effective August 2009
Generator Sizing Guide
EATON CORPORATION www.eaton.com
NEC (700, 701, 702) Comparison
NEC Comparison Table to be used as a general guideline in determining the proper generator for specific applications. Refer to architectural
documents for final selection.
Article 700 Emergency Article 701 Standby Article 702 Optional Standby
Scope Legally required life safety
Legally required critical support
(fire fighting, health hazards, etc)
Protect property & facilities
Equipment Approval For Emergency / (UL2200) For Intended Use / (UL2200) For Intended Use / (UL2200) / Not in 2008
Testing
Witness Testing (on-sight) At install & periodically At install None
Periodic Testing Yes Yes None
Battery Maintenance Yes Yes None
Maintenance Records Yes Yes None
Load Testing Yes Yes None
Capacity All Loads All loads intended to operate at one time
All loads intended to operate at one time
/ Not in 2008
Other Standby Loads Allowed Yes with load shedding Yes with load shedding 2008 – Yes with load shedding
Peak Shaving Allowed Yes ?? Yes Yes
Transfer Switch
Automatic Yes Yes No
Equipment Approval For Emergency / (UL1008) For Standby / (UL1008) For Intended Use / (UL1008)
Means to Permitt Bypass Yes No No
Elect. Operated - Mech. Held Yes No No
Other loads No Yes with load shedding N/A
Max. Fault Current Capable Yes Yes Yes
Signals (Audible & Visual)
Derangement Yes / Standard common alarm Yes / Standard common alarm Yes / Standard common alarm
Carrying Load Yes / Displayed at ATS Yes / Displayed at ATS Yes / Displayed at ATS
Battery Charger Failed Yes Yes No
Ground Fault Indication Yes (480V & 1000A) No No
NFPA 110 Signaling Yes / Optional annunciator Yes / Optional annunciator No
Signs
At service Yes / Type & location Yes / Type & location Yes / Type & location
At neutral to ground bonding Yes (if remote) Yes (if remote) Yes (if remote)
Wiring kept independent Yes No No
Fire protection (ref 700-9d) Yes (1000 persons or 75' building) No No
Maximum power outage 10 sec 60 sec N/A
Retransfer delay 15 min setting 15 min setting No
Automatic starting Yes Yes No
On-site fuel requirements 2 hours (see NFPA 110) 2 hours None
Battery charger Yes Yes No
Ground Fault Indication Only No No
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