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Welcome to WIKI-EIG Wiki Electrical Installation Guide Moving from a Schneider-Electric guide to an open content collaboration encyclopaedia. 3,529 pages that you can improve and complete

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Electrical Installation Guide Summary place your mouse on a chapter title to know more about its content Scope and content of Wiki EIG General rules of electrical installation design Connection to the MV utility distribution network Connection to the LV utility distribution network MV & LV architecture selection guide LV Distribution Protection against electric shocks Sizing and protection of conductors LV switchgear: functions & selection  Protection against voltage surges in LV Energy Efficiency in electrical distribution Power factor correction and harmonic filtering Power harmonics management Characteristics of particular sources and loads PhotoVoltaic (PV) installation Residential electrical installations ElectroMagnetic Compatibility (EMC)

News Template:News Highlights New content on Ultra Rapid circuit breaker As installed power increases, electrical distribution has to shift from a LV design to a HV design. Indeed, a high short-circuit level can be a threat to the installation and make impossible the selection of low voltage equipments (Switchboard and bus bars, circuit breaker…) These situations can be met in the following applications: Bus bars coupling onboard merchant vessels, off shore platform, loop networks (in industry), where the current and energy are important because of the installed power (several transformers or generators in parallel) and HV design not easy. <more> Electrical protection against surges 6 pages dedicated to electrical protection against surges have just been fully updated. In addition to describing the operation of the surge arrester, the emphasis is on the method of choice and their location in the architecture of the electrical installation. Similarly the security of the facility is an essential element; coordination table between the arrester and its short circuit protection device is proposed. This is the result of extensive studies and tests in laboratories conducted by specialists which expertise is about short circuit breaking and lightning electromagnetic phenomena. Pages: Overvoltage characteristics of atmospheric origin Principle of lightning protection Design of the electrical installation protection system Installation of Surge Protection Device Surge protection example Surge protection technical supplements