Code Basics http://ecmweb.com/taxonomy/term/6615/more en Outside Branch Circuits and Feeders, Part 3 http://ecmweb.com/code-basics/outside-branch-circuits-and-feeders-part-3 <div class="node-body article-body">The requirements for masts as supports differ from previous NEC versions</div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/outside-branch-circuits-and-feeders-part-3" target="_blank">read more</a></p> http://ecmweb.com/code-basics/outside-branch-circuits-and-feeders-part-3#comments Code Basics Training Silver Tue, 02 Feb 2016 14:30:00 +0000 131981 at http://ecmweb.com mrfotos/iStock/Thinkstock GFCI and AFCI Basics http://ecmweb.com/code-basics/gfci-and-afci-basics <div class="node-body article-body">Two different technologies protect against two different types of hazard. </div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/gfci-and-afci-basics" target="_blank">read more</a></p> http://ecmweb.com/code-basics/gfci-and-afci-basics#comments Code Basics Silver Fri, 22 Jan 2016 21:20:00 +0000 131661 at http://ecmweb.com Outside Branch Circuits and Feeders, Part 2 http://ecmweb.com/code-basics/outside-branch-circuits-and-feeders-part-2 <div class="node-body article-body">What about installing lighting equipment outdoors? </div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/outside-branch-circuits-and-feeders-part-2" target="_blank">read more</a></p> http://ecmweb.com/code-basics/outside-branch-circuits-and-feeders-part-2#comments Code Basics Training Silver Tue, 19 Jan 2016 17:00:00 +0000 131501 at http://ecmweb.com nathaphat/iStock/Thinkstock Outside Branch Circuits and Feeders, Part 1 http://ecmweb.com/code-basics/outside-branch-circuits-and-feeders-part-1 <div class="node-body article-body">Article 225 of the 2014 NEC provides requirements for running branch circuits outdoors, on or between structures </div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/outside-branch-circuits-and-feeders-part-1" target="_blank">read more</a></p> http://ecmweb.com/code-basics/outside-branch-circuits-and-feeders-part-1#comments Code Basics Training Silver Tue, 05 Jan 2016 12:00:00 +0000 131091 at http://ecmweb.com Alin Dragulin/FogStock/Thinkstock Feeder and Service Load Calculations, Part 4 http://ecmweb.com/code-basics/feeder-and-service-load-calculations-part-4 <div class="node-body article-body">Part III of NEC Art. 220 provides requirements for the calculated load of specific applications </div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/feeder-and-service-load-calculations-part-4" target="_blank">read more</a></p> http://ecmweb.com/code-basics/feeder-and-service-load-calculations-part-4#comments Code Basics Training Silver Tue, 22 Dec 2015 13:00:00 +0000 130811 at http://ecmweb.com kornnphoto/iStock/Thinkstock Transformer Calculations http://ecmweb.com/code-basics/transformer-calculations <div class="node-body article-body">The NEC refers to transformers as “separately derived systems”</div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/transformer-calculations" target="_blank">read more</a></p> http://ecmweb.com/code-basics/transformer-calculations#comments Code Basics Silver Tue, 15 Dec 2015 00:00:00 +0000 130521 at http://ecmweb.com Feeder and Service Load Calculations, Part 3 http://ecmweb.com/code-basics/feeder-and-service-load-calculations-part-3 <div class="node-body article-body">Article 100 defines “demand factor” as the ratio of the maximum demand of a system (or part of a system) to the total connected load of a system (or part of a system). </div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/feeder-and-service-load-calculations-part-3" target="_blank">read more</a></p> http://ecmweb.com/code-basics/feeder-and-service-load-calculations-part-3#comments Code Basics Training Silver Tue, 08 Dec 2015 16:00:00 +0000 130271 at http://ecmweb.com Dorling Kindersley/Thinkstock Feeder and Service Load Calculations, Part 2 http://ecmweb.com/code-basics/feeder-and-service-load-calculations-part-2 <div class="node-body article-body">As noted previously, the Informational Note of 220.40 is really two notes contained in one.</div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/feeder-and-service-load-calculations-part-2" target="_blank">read more</a></p> http://ecmweb.com/code-basics/feeder-and-service-load-calculations-part-2#comments Code Basics Training Silver Sun, 22 Nov 2015 19:58:00 +0000 129861 at http://ecmweb.com Commercial Load Calculations — Part 2 http://ecmweb.com/code-basics/commercial-load-calculations-part-2 <div class="node-body article-body">If you were to watch daily operations at a marina [555.12], you’d see why its demand factors differ from those for other spaces such as hotel rooms. </div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/commercial-load-calculations-part-2" target="_blank">read more</a></p> http://ecmweb.com/code-basics/commercial-load-calculations-part-2#comments Code Basics Silver Mon, 16 Nov 2015 22:11:00 +0000 129621 at http://ecmweb.com Commercial Load Calculations — Part 1 http://ecmweb.com/code-basics/commercial-load-calculations-part-1 <div class="node-body article-body">The NEC contains detailed requirements for calculating service and feeder loads in many types of occupancies. </div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/commercial-load-calculations-part-1" target="_blank">read more</a></p> http://ecmweb.com/code-basics/commercial-load-calculations-part-1#comments Code Basics Silver Fri, 16 Oct 2015 21:11:00 +0000 128491 at http://ecmweb.com