reserve power supply — резервный источник питания
battery power supply — батарейный источник питания
emergency power supply — аварийный источник питания
integral power supply — встроенный источник питания
secondary power supply — вторичный источник питания
English-Russian big medical dictionary. 2005.
Electrical wiring (United States) — Electrical wiring in general refers to conductors used to carry electricity and their accessories. General aspects of electrical wiring as used to provide power in or to buildings and structures, commonly referred to as building wiring, are… … Wikipedia
Electrical bonding — is the practice of intentionally electrically connecting all metallic non current carrying items in a room or building as protection from electric shock. If a failure of electrical insulation occurs, all metal objects in the room will have the… … Wikipedia
mains electricity — UK US noun [uncountable] the public supply of electricity for people to use in their homes, offices etc Thesaurus: electricity and electrical powerhyponym … Useful english dictionary
Mains electricity — A table lamp connected to a wall socket (the mains). Mains is the general purpose alternating current (AC) electric power supply. In the US, electric power is referred to by several names including household power, household electricity,… … Wikipedia
Mains electricity by country — This article includes a list of countries and territories, with the plugs, voltages and frequencies they use for providing electrical power to small appliances and some major appliances. For definitions of terms and further information on each… … Wikipedia
Electrical ballast — Choke ballast (inductor) used in older lighting. This example is from a tanning bed. Requires a lamp starter (below) and capacitor … Wikipedia
Electrical power industry — The electrical power industry provides the production and delivery of electrical power (electrical energy), often known as power, or electricity, in sufficient quantities to areas that need electricity through a grid. Many households and… … Wikipedia
Mains power systems — This article includes a list of countries and territories, with the plugs, voltages and frequencies they use for providing electrical power to small appliances and some major appliances. For definitions of terms and further information on each… … Wikipedia
Electrical grid — Power Grid redirects here. For the board game, see Power Grid (board game). For other uses, see Grid (disambiguation). General layout of electricity networks. Voltages and depictions of electrical lines are typical for Germany and other European… … Wikipedia
Electrical wiring (UK) — The modern UK standards and regulations for electrical wiring no longer differ substantially from those in other European countries. However, there are a number of noteworthy national peculiarities, habits and traditions associated with domestic… … Wikipedia
mains — noun /meɪnz/ a) The domestic electrical power supply. I plugged it into the mains and it blew up! b) The pipes of a centralized water supply that transport the water to individual buildings … Wiktionary
