Backup
121Backup fuel — In a central heat pump system, the fuel used in the furnace that takes over the space heating when the outdoor temperature drops below that which is feasible to operate a heat pump. U.S. Dept. of Energy, Energy Information Administration s… …
122Backup generator — A generator that is used only for test purposes, or in the event of an emergency, such as a shortage of power needed to meet customer load requirements. U.S. Dept. of Energy, Energy Information Administration s Energy Glossary …
123Backup power — Electric energy supplied by a utility to replace power and energy lost during an unscheduled equipment outage. U.S. Dept. of Energy, Energy Information Administration s Energy Glossary …
124Backup supply — A&V A redundant power supply that takes over if the primary power supply fails …
125backup copy — / bækʌp ˌkɒpi/ noun a copy of a computer disk to be kept in case the original disk is damaged …
126backup copy — / bækʌp ˌkɒpi/ noun a copy of a computer disk to be kept in case the original disk is damaged …
127backup credit — / bækʌp ˌkredɪt/ noun credit provided by banks for a eurocurrency note …
128backup line — / bækʌp laɪn/ noun credit provided by banks against the security of commercial bills of exchange which are about to mature …
