www.se.com49Simplified design guideDesign of a power distribution line in Canalis busbar trunkingCABDEFExcept in extreme atmospheres, there's no longer any need to hesitate. Canalis can be installed anywhere!"The chronology described below aims to present the steps for the execution of a simple installation. For a detailed study, it is essential to use appropriate tools, certified by the inspection organisations, in accordance with local installation standards. The Ecodial software, published by Schneider Electric, perfectly meets this need".A study grid, enabling you to note your choices and store them, is available on page 52 (to be detached or photocopied).The ambient temperature, presence of dust, condensation water, etc. contribute to the definition of the degree of protection required by the room in which electrical installation will be performed.Canalis KS and KN prefabricated electrical busbar trunking are IP55 by design and can be installed in nearly all premises. See description of the degree of protection (IP) page 54.1 Identify external influencesThe layout of the distribution lines depends on the location of the loads, the location of the power supply source and the mounting possibilities.• A single distribution line serves an area of 4 to 6 metres long.• Load protection id located in the tap-off unit positioned as close as possible to the load.• A single Canalis busbar trunking system powers a series of loads of various capacities.2 Location of loads and trunking installation methodCalculation of the total operating current (In) consumed on a line:In operating = Σ IbIb = current consumed by each loadBUTSince the loads do not all operate at the same time and are not constantly at full capacity, it is necessary to allow for the growth factor or coincidence factor (Ks): In operating = Σ (Ib x Ks).The diversity factor Ks depends on the type and number of loads.3 Power balance: calculation of currents consumed on each distribution lineApplicationNumber of loadsKS factorLighting, heating-1Distribution(Mechanical workshop)2...30.94...50.86...90.710...400.640 and more0.5MOREOVERFor industrial installations, take into account growth in the installed machinery base. A 20% margin is recommended: In operating = Σ Ib x Ks x 1.2.DEBU020EN
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