electrical earthing
51Electricity 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 …
52BS 7671 — British Standard BS 7671 Requirements for electrical installations is the national standard in the United Kingdom for low voltage electrical installations. It is also used as a national standard by Mauritius, St Lucia, Saint Vincent and the… …
53Test probe — Typical passive oscilloscope probe being used for testing an integrated circuit. A test probe (test lead, test prod, or scope probe) is a physical device used to connect electronic test equipment to the device under test (DUT). They range from… …
54Single-wire earth return — (SWER) or single wire ground return is a single wire transmission line for supplying single phase electrical power from an electrical grid to remote areas at low cost. It is principally used for rural electrification, but also finds use for… …
55Industrial and multiphase power plugs and sockets — Industrial and multiphase plugs and sockets provide a connection to the electrical mains rated at higher voltages and currents than household plugs and sockets. They are generally used when more than two current carrying conductors (polyphase… …
56Earth potential rise — In electrical engineering, Earth Potential Rise (EPR) also called Ground Potential Rise (GPR) occurs when a large current flows to earth through an earth grid impedance. The potential relative to a distant point on the Earth is highest at the… …
57Mast 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 …
58ANSI 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… …
59Single-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 …
60IEC connector — is the common name for the set of thirteen line sockets (called the connector in the specification) and thirteen panel plugs (called the inlet ) defined by International Electrotechnical Commission (IEC) specification IEC 60320 (formerly IEC 320) …
