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NECA/EGSA 404-2014
Standard for Installing Generator Sets
This standard describes installation procedures for generators and related accessories and systems that are permanently installed for on-site standby or emergency power generation that are typically fueled by natural gas or diesel. Such generators may be defined as ôemergency systemsö or ôlegally-required standby systemsö intended to supply power for emergency or life-safety applications in accordance with NFPA 70, National Electrical Code.
National Electrical Contractors Association [neca]