NEC http://ecmweb.com/taxonomy/term/6614/more en Motor Nameplate Current vs. NEC Full Load Current Values http://ecmweb.com/motors/motor-nameplate-current-vs-nec-full-load-current-values <div class="node-body article-body">When sizing circuit breakers, fuses, and conductors for a general AC motor branch circuit, National Electrical Code (NEC) Sec. 430.6(A)(1) stipulates that the currents indicated in the current tables at the end of Art. 430 must be used to determine the ratings instead of the actual nameplate current rating.</div> <p><a href="http://ecmweb.com/motors/motor-nameplate-current-vs-nec-full-load-current-values" target="_blank">read more</a></p> http://ecmweb.com/motors/motor-nameplate-current-vs-nec-full-load-current-values#comments Motors Design NEC Mon, 22 May 2017 21:09:00 +0000 148561 at http://ecmweb.com <p>A 480V, 3-phase, squirrel-cage motor is a common piece of equipment in many facilities.</p> Shutterstock/Theerawut_SS Code Quiz of the Week: No. 76 http://ecmweb.com/quizzes/code-quiz-week-no-76 <div class="node-body gallery-body">Take this weekly quiz to test your knowledge of the 2014 National Electrical Code (NEC) requirements.</div> <p><a href="http://ecmweb.com/quizzes/code-quiz-week-no-76" target="_blank">read more</a></p> http://ecmweb.com/quizzes/code-quiz-week-no-76#comments Quizzes Mon, 22 May 2017 13:08:00 +0000 148611 at http://ecmweb.com <p><em>Photo credit: EyeMark/iStock/Thinkstock</em></p> Generator Shutdown Means http://ecmweb.com/nec/generator-shutdown-means <div class="node-body article-body">What this means is that both exterior and interior generators are required to have a second means of shutting down the prime mover. </div> <p><a href="http://ecmweb.com/nec/generator-shutdown-means" target="_blank">read more</a></p> http://ecmweb.com/nec/generator-shutdown-means#comments Design NEC Fri, 19 May 2017 19:54:00 +0000 148541 at http://ecmweb.com Code Quiz: Raceway Seal Requirements http://ecmweb.com/quizzes/code-quiz-raceway-seal-requirements <div class="node-body article-body">In accordance with Sec. 300.5(G), raceway seals are required in conduits or raceways through which moisture may contact live parts. </div> <p><a href="http://ecmweb.com/quizzes/code-quiz-raceway-seal-requirements" target="_blank">read more</a></p> http://ecmweb.com/quizzes/code-quiz-raceway-seal-requirements#comments Quizzes Silver Thu, 18 May 2017 13:00:00 +0000 148471 at http://ecmweb.com Code Q&A: Portable Cords http://ecmweb.com/qa/code-qa-portable-cords <div class="node-body article-body">What is the Code rule regarding using portable cords for permanent wiring?</div> <p><a href="http://ecmweb.com/qa/code-qa-portable-cords" target="_blank">read more</a></p> http://ecmweb.com/qa/code-qa-portable-cords#comments Q&A Silver Thu, 18 May 2017 13:00:00 +0000 148481 at http://ecmweb.com Moving Violations Video No. 143: Lack of Signage http://ecmweb.com/moving-violation-videos/moving-violations-video-no-143-lack-signage <div class="node-body video-body">Find the Code violations in this video.</div> <p><a href="http://ecmweb.com/moving-violation-videos/moving-violations-video-no-143-lack-signage" target="_blank">read more</a></p> http://ecmweb.com/moving-violation-videos/moving-violations-video-no-143-lack-signage#comments Moving Violation Videos Thu, 18 May 2017 13:00:00 +0000 148501 at http://ecmweb.com What’s Wrong Here? Hint: Squeeze Play http://ecmweb.com/whats-wrong-here/what-s-wrong-here-hint-squeeze-play <div class="node-body article-body">Think you know how this installation violates the NEC? </div> <p><a href="http://ecmweb.com/whats-wrong-here/what-s-wrong-here-hint-squeeze-play" target="_blank">read more</a></p> http://ecmweb.com/whats-wrong-here/what-s-wrong-here-hint-squeeze-play#comments What's Wrong Here? Silver Thu, 18 May 2017 13:00:00 +0000 148461 at http://ecmweb.com Grounding and Bonding, Part 2 http://ecmweb.com/code-basics/grounding-and-bonding-part-2-0 <div class="node-body article-body">One common NEC violation is an installation where grounding electrodes aren’t bonded together</div> <p><a href="http://ecmweb.com/code-basics/grounding-and-bonding-part-2-0" target="_blank">read more</a></p> http://ecmweb.com/code-basics/grounding-and-bonding-part-2-0#comments Code Basics Design Silver Tue, 16 May 2017 19:00:00 +0000 148221 at http://ecmweb.com Stumped by the Code? Rule for Sizing Service Conductors for Dwellings http://ecmweb.com/qa/stumped-code-rule-sizing-service-conductors-dwellings <div class="node-body article-body">What is the Code rule for sizing service conductors for dwellings? </div> <p><a href="http://ecmweb.com/qa/stumped-code-rule-sizing-service-conductors-dwellings" target="_blank">read more</a></p> http://ecmweb.com/qa/stumped-code-rule-sizing-service-conductors-dwellings#comments Q&A Design Silver Tue, 16 May 2017 19:00:00 +0000 148231 at http://ecmweb.com What's Wrong Here? Hint: Oh, so very close! http://ecmweb.com/whats-wrong-here/whats-wrong-here-hint-oh-so-very-close <div class="node-body article-body">How well do you know the Code? Think you can spot violations the original installer either ignored or couldn’t identify? </div> <p><a href="http://ecmweb.com/whats-wrong-here/whats-wrong-here-hint-oh-so-very-close" target="_blank">read more</a></p> http://ecmweb.com/whats-wrong-here/whats-wrong-here-hint-oh-so-very-close#comments What's Wrong Here? Silver Tue, 16 May 2017 19:00:00 +0000 148251 at http://ecmweb.com