multiple earthing
12Electrical substation — An electrical substation is a subsidiary station of an electricity generation, transmission and distribution system where voltage is transformed from high to low or the reverse using transformers. Electric power may flow through several… …
13Third rail — For other uses, see Third rail (disambiguation). Third rail at the West Falls Church Metro station near Washington, D.C., electrified at 750 volts. The third rail is at the top of the image, with a white canopy above it. The two lower rails… …
14Mast radiator — A typical mast radiator in Chapel Hill, North Carolina. The high RF voltage on the mast can deliver a dangerous electrical shock to anyone touching it, so the base is surrounded by a fence to prevent access …
15Electricity distribution — is the penultimate stage in the delivery (before retail) of electricity to end users. It is generally considered to include medium voltage (less than 50 kV) power lines, electrical substations and pole mounted transformers, low voltage (less than …
16Transmission tower — A delta pylon carrying a 400kV power line towards Madrid. A transmission tower (colloquially termed an electricity pylon in the United Kingdom and parts of Europe, an ironman in Australia, and a hydro tower in parts of Canada) is a tall structure …
17ANSI Device Numbers — The ANSI Standard Device Numbers [ [http://www.geindustrial.com/pm/notes/ref/ANSI.pdf GE Multilin ANSI Standard Device Number] ] [ Protective Relaying Manual , Pennsylvania Electric Association (1975)] [ [http://www.basler.com/downloads/ANSI… …
18Potato — Irish potato redirects here. For the confectionery, see Irish potato candy. For other uses, see Potato (disambiguation). Potato …
19Single-phase electric power — In electrical engineering, single phase electric power refers to the distribution of alternating current electric power using a system in which all the voltages of the supply vary in unison. Single phase distribution is used when loads are mostly …
20Electrical 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… …
