These requirements cover automatic, non-automatic, and by-pass/isolation transfer switches intended for use in ordinary locations to provide for lighting and power as follows:

--a) Automatic transfer switches and by-pass/isolation switches for use in emergency systems i n accordance with Articles 517-Health Care Facilitie s, 700-Emergency Systems, 701-Legally Required Standby Systems, and 702-O ptional Standby Systems of the National Electrical Code, ANSI/NFPA 70 and the National Fire Protection Association Standard for Health Care Facilities ANSI/NFPA 99.

--b) In option al stand-by systems in accordance with Article 702 of the National Electrical Code , ANSI/NFPA 70-1996.

--c) In legally required stand-by systems in accordance with Article 701 of the National Electrica l Code, ANSI/NFPA 70-1996.

--d) Automatic transfer switches and by-pass/isolation switches for use in accordance with th e National Fire Protection Association Standard for Centrifugal Fire Pumps, ANSI/NFPA 20.

--e) Non-Auto matic transfer switches for use in accordance with Articles 517-Health Care Facilities, and 702-Optional Standby Systems of the National Electrical Code, ANSI/NFPA 70 and the National Fire Protection Association Standard for Health Care Facilities, ANSI/NFPA 99.