{"product_id":"9781119955047","title":"Electrical Installation Calculations: For Compliance with BS 7671:2008","description":"Manual calculations are still extensively used and in particular are necessary for checking and verifying various software calculation design packages. It is highly recommended that users of such software familiarise themselves with the rudiments of these calculations prior to using the software packages.\u003cbr\u003e \u003cbr\u003e \u003cp\u003eThis essential book fills the gap between software and manual calculations. It provides the reader with all the necessary tools to enable accurate calculations of circuit designs. Rather than complex equations, this book uses extensive worked examples to make understanding the calculations simpler. The focus on worked examples furnishes the reader with the knowledge to carry out the necessary checks to electrical cable sizing software programmes.\u003c\/p\u003e \u003cp\u003eOther key features include:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eUpdated information on 230 volt references and voltage drop under normal load conditions\u003c\/li\u003e \u003cli\u003eNew sections on buried cables that take into account soil thermal conductivity, trenches and grouping, allowing readers to carry out accurate cables sizing\u003c\/li\u003e \u003cli\u003eInformation and examples of steel wired armour cables, new to this edition. This includes sufficiency during short circuits and, for cables with externally run CPCs, gives unique fault conditions.\u003c\/li\u003e \u003cli\u003eCovers calculations of cross-sectional areas of circuit live conductors\u003c\/li\u003e \u003cli\u003eEarth fault loop impedances\u003c\/li\u003e \u003cli\u003eProtective conductor cross-sectional areas and short circuit conditions\u003c\/li\u003e \u003cli\u003eShort circuit protection.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eThe last chapter combines all of the calculations of the previous chapters to enable the reader to complete an accurate design of an installation circuit under all conditions.\u003c\/p\u003e \u003cp\u003eA unique tool for detailed electrical installation trade, \u003ci\u003eElectrical Installation Calculations, Fourth Edition\u003c\/i\u003e is invaluable to electricians, electrical designers, installers, technicians, contractors, and plant engineers. Senior electrical engineering students and technical colleges, junior engineers, and contracts managers will also find this text useful.\u003c\/p\u003e","brand":"Wiley","offers":[{"title":"Default Title","offer_id":47118581661936,"sku":"9781119955047","price":63.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9781119955047_p0.jpg?v=1763697831","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781119955047","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}