These requirements cover automatic@ non-automatic@ and manual transfer switches@ operating at voltages of greater than 1000 Vac@ and intended for use in non-hazardous locations in accordance with Annex B@ Item 1@ the National Electrical Code@ ANSI/NFPA 70@ or the Canadian Electrical Code@ CSA C22.1@ Part 1@ to provide for power as follows: a) Automatic transfer switches for use in emergency systems in: 1) Emergency systems in accordance with the Standard for Emergency Electrical Power Supply for Buildings@ CSA C282-15; 2) Health care facilities in accordance with Rule 24-304 of the Canadian Electrical Code (CEC) Part I; 3) Articles 517@ Health Care Facilities@ and 700@ Emergency Systems@ of the National Electrical Code@ ANSI/NFPA 70 (refer to Annex B@ Item 1); and 4) The Health Care Facilities Code@ ANSI/NFPA 99@ (refer to Annex B@ Item 12). Note: Transfer switches for optional standby systems are not recognized in Canada. b) Transfer switches for use in optional standby systems in accordance with Article 702 of the National Electrical Code@ ANSI/NFPA 70 (refer to Annex B@ Item 1). Note: Automatic transfer switches for optional standby systems are not recognized in Canada. c) In legally required standby systems in accordance with Article 701 of the National Electrical Code@ ANSI/NFPA 70(refer to Annex B@ Item 1). Note: Legally-required standby systems are not recognized in Canada. d) Automatic transfer switches for use in accordance with the Standard for the Installation of Stationary Pumps for Fire Protection@ ANSI/NFPA 20 or the Standard for Fire Pump Controllers@ CSA C22.2 No. 263@ (refer to Annex B@ Item 2). These requirements cover transfer switches rated greater than 1000 V to 46 kV. These requirements cover transfer switches together with their associated control devices including@ but not limited to@ voltage sensing relays@ frequency sensing relays@ and time delay relays. An automatic transfer switch as covered by these requirements is a device that automatically transfers a common load from a normal supply to an alternate supply in the event of failure of the normal supply@ and automatically returns the load to the normal supply when the normal supply is restored. An automatic transfer switch can be provided with a logic control circuit that inhibits automatic operation of the device from either a normal to an alternate supply@ or from an alternate to a normal supply when the switch reverts to automatic operation upon loss of power to the load. A non-automatic transfer switch as covered by these requirements is a device@ operated manually by a physical action@ or electrically by a remote control@ for transferring a common load between a normal and alternate supply. These requirements only cover completely enclosed transfer switches.