These requirements cover stationary engine generator assemblies rated 600 volts or less that are intended for installation and use in ordinary locations in accordance with the National Electrical Code NFPA-70; the Standard for the Installation and Use of Stationary Combustion Engines and Gas Turbines@ NFPA-37@ the Standard for Health Care Facilities@ NFPA-99@ and the Standard for Emergency and Standby Power Systems@ NFPA-110.These requirements do not cover generators for use in hazardous (Classified) locations. That Equipment is covered by the Standard for Electric Motors and Generators for Hazardous (Classified) Locations@ UL 674.These requirements do not cover UPS equipment. That equipment is covered by the Standard for Uninterruptible Power Supply Equipment@ UL 1778.These requirements do not cover generators for marine use. That equipment is covered by the Standard for Marine Electric Motors and Generators@ UL 1112.A product that contains features@ characteristics@ components@ materials@ or systems new or different from those covered by the requirements in this standard@ and that involves a risk of fire or of electric shock or injury to persons shall be evaluated using appropriate additional component and end-product requirements to maintain the level of safety as originally anticipated by the intent of this standard. A product whose features@ characteristics@ components@ materials@ or systems conflict with specific requirements or provisions of this standard does not comply with this standard. Revision of requirements shall be proposed and adopted in conformance with the methods employed for development@ revision@ and implementation of this standard.