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protection devices - legrand.com
Sizing conductors and selecting protection devicesPowEr guidE 2009 / BOOk 0404 INTROThe complete calculation of installations has been found to be so long, complex, and even daunting as to justify the ongoing development of practical aids: calculation charts, note-boards, etc. and now software, such as XL PRO2 Calculation. We must not however let the absolute accuracy, reliability and ease of use of these tools make us lose sight of the calculation principles on which they are based. The purpose of this book is to cover the main rules that are used for sizing conductors, wiring systems and their electrical protection (against overloads, voltage drops, short-circuits and indirect contact) according to the parameters of the installation: physical (type of conductor, installation conditions, temperature, length of lines, etc.)
INTRO The complete calculation of installations has been found to be so long, complex, and even daunting as to justify the ongoing development of practical
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