Code Basics http://ecmweb.com/taxonomy/term/6615/more en The Basics of Conductor Sizing — Part 1 http://ecmweb.com/code-basics/basics-conductor-sizing-part-1 <div class="node-body article-body">Unfortunately, making the proper choices when sizing electrical conductors can get complicated. </div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/basics-conductor-sizing-part-1" target="_blank">read more</a></p> http://ecmweb.com/code-basics/basics-conductor-sizing-part-1#comments Code Basics Silver Mon, 20 Apr 2015 21:11:00 +0000 114381 at http://ecmweb.com Overcurrent Protective Device Sizing http://ecmweb.com/code-basics/overcurrent-protective-device-sizing <div class="node-body article-body">Undersize your overcurrent protective device (OCPD), and normal operations might become impossible. Oversize your OCPD, and the whole place might burn down.</div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/overcurrent-protective-device-sizing" target="_blank">read more</a></p> http://ecmweb.com/code-basics/overcurrent-protective-device-sizing#comments Code Basics Silver Thu, 19 Mar 2015 22:35:00 +0000 111131 at http://ecmweb.com Box Sizing Tips http://ecmweb.com/code-basics/box-sizing-tips <div class="node-body article-body">So you go through all that work to correctly size your raceway, only to find out during the acceptance inspection that you have to replace some boxes and re-pull all of the conductors.</div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/box-sizing-tips" target="_blank">read more</a></p> http://ecmweb.com/code-basics/box-sizing-tips#comments Code Basics Silver Mon, 16 Feb 2015 21:02:00 +0000 108511 at http://ecmweb.com Raceway Sizing: Getting it Just Right http://ecmweb.com/code-basics/raceway-sizing-getting-it-just-right <div class="node-body article-body">If raceway is too small, you can damage conductors while trying to pull them through. Even if they aren’t damaged during the pull, they may overheat inside an undersized raceway. For these reasons, the NEC has requirements for minimum raceway size. </div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/raceway-sizing-getting-it-just-right" target="_blank">read more</a></p> http://ecmweb.com/code-basics/raceway-sizing-getting-it-just-right#comments Code Basics Silver Thu, 22 Jan 2015 19:53:00 +0000 107121 at http://ecmweb.com Meeting Health Care Facility Electrical Requirements http://ecmweb.com/code-basics/meeting-health-care-facility-electrical-requirements <div class="node-body article-body">Health care facilities differ from other types of occupancies in many important ways. For this reason, they are classified as special occupancies. </div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/meeting-health-care-facility-electrical-requirements" target="_blank">read more</a></p> http://ecmweb.com/code-basics/meeting-health-care-facility-electrical-requirements#comments Code Basics Silver Thu, 18 Dec 2014 15:08:00 +0000 57961 at http://ecmweb.com Step-by-Step Guide to Transformer Installations http://ecmweb.com/code-basics/step-step-guide-transformer-installations <div class="node-body article-body">All you wanted to do was install a 30kVA, 120/208V transformer to supply receptacles in a new office structure on the production floor.</div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/step-step-guide-transformer-installations" target="_blank">read more</a></p> http://ecmweb.com/code-basics/step-step-guide-transformer-installations#comments Code Basics Contractor Design NEC Silver Wed, 19 Nov 2014 00:53:00 +0000 56251 at http://ecmweb.com Basic Requirements for Switches, Receptacles, Cord Connectors, and Caps http://ecmweb.com/code-basics/basic-requirements-switches-receptacles-cord-connectors-and-caps <div class="node-body article-body">The requirements of Art. 404 apply to switches of all types, including snap (toggle) switches, dimmer switches, fan switches, knife switches, circuit breakers used as switches, and automatic switches, such as time clocks and timers. </div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/basic-requirements-switches-receptacles-cord-connectors-and-caps" target="_blank">read more</a></p> http://ecmweb.com/code-basics/basic-requirements-switches-receptacles-cord-connectors-and-caps#comments Code Basics Silver Sat, 18 Oct 2014 17:14:00 +0000 54551 at http://ecmweb.com The Four Pillars of NEC Chapter 3 http://ecmweb.com/code-basics/four-pillars-nec-chapter-3 <div class="field-byline"> By Mike Holt, NEC Consultant </div> <div class="node-body article-body">Four NEC Articles form the basis for correctly applying Chapter 3 wiring methods. </div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/four-pillars-nec-chapter-3" target="_blank">read more</a></p> http://ecmweb.com/code-basics/four-pillars-nec-chapter-3#comments Code Basics Silver Wed, 17 Sep 2014 16:19:00 +0000 52641 at http://ecmweb.com Branch Circuit, Feeder, and Service Wiring Methods http://ecmweb.com/code-basics/branch-circuit-feeder-and-service-wiring-methods <div class="field-byline"> By Mike Holt, NEC Consultant </div> <div class="node-body article-body">To correctly apply Chapter 3 wiring methods, you must truly understand Article 300. </div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/code-basics/branch-circuit-feeder-and-service-wiring-methods" target="_blank">read more</a></p> http://ecmweb.com/code-basics/branch-circuit-feeder-and-service-wiring-methods#comments Code Basics Silver Mon, 18 Aug 2014 16:19:00 +0000 51321 at http://ecmweb.com Grounding and Bonding — Part 2 of 2 http://ecmweb.com/bonding-grounding/grounding-and-bonding-part-2-2 <div class="field-byline"> By Mike Holt, NEC Consultant </div> <div class="node-body article-body">Should you install equipment grounding conductors (EGCs)? Yes and no. </div> <div class="og_rss_groups"></div><p><a href="http://ecmweb.com/bonding-grounding/grounding-and-bonding-part-2-2" target="_blank">read more</a></p> http://ecmweb.com/bonding-grounding/grounding-and-bonding-part-2-2#comments Bonding & Grounding Code Basics Silver Wed, 16 Jul 2014 19:48:00 +0000 49021 at http://ecmweb.com