Apr
28 | Code WatchKeeping an eye on your most important electrical standard | |  | | |
|  How well do you know the Code? Think you can spot violations the original installer either ignored or couldn’t identify? Hint: Taking the easy way out. |
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|  Test your knowledge of the NEC with this challenging Q&A from Code Consultant Mike Holt. What is the Code rule regarding the accessibility of battery and cell terminations for storage batteries? |
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|  Do you know an up-and-coming young electrical professional who has shown extraordinary results on the job? If so, nominate him or her for consideration as an EC&M Under 30 All-Star. The deadline is April 29. |
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|  Fill in the blank. The number of receptacle outlets for guest rooms in hotels and motels shall not be less than that required for a dwelling unit. These receptacles can be located to be convenient for permanent furniture layout, but at least _____ receptacle outlet(s) shall be readily accessible. |
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|  How well do you know the Code? Think you can spot violations the original installer either ignored or couldn’t identify? Here's your chance to moonlight as an electrical inspector and second-guess someone else's work from the safety of your living room or office. Can you identify the specific Code violation(s) in this photo? Hint: A stockpile of violations. |
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|  The requirements in Art. 680 apply to the installation of electrical wiring and equipment for swimming pools, spas, hot tubs, fountains, hydromassage bathtubs, and electrically powered pool lifts. |
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Members Only |  FREE PREMIUM CONTENT: In this episode of EC&M Code Conversations, Editor-in-Chief Ellen Parson and Code Consultant Russ LeBlanc discuss Sec. 200.6 and why the Code doesn't specify which method of identification must be used for any particular voltage class or system type. |
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|  The U.S. Occupational Safety and Health Administration’s (OSHA) Deputy Director, Directorate of Enforcement Programs Patrick Kapust recently unveiled the Top 10 OSHA violations of fiscal year 2021, which concluded on September 30. Announced on Oct. 12, 2021 during the 2021 NSC Safety Congress & Expo event in Orlando, Fla., this year’s listing has remained relatively unchanged. |
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|  It’s good to keep an understanding of switches in mind when working on industrial or commercial systems and equipment. Just because you flip a control switch off doesn’t mean the circuit is dead or an enclosure is de-energized. Lockout/tagout procedures for utilization equipment always take you back to the branch or feeder supply, which is a fuse or breaker. A similar concept applies to service equipment. |
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|  Section 250.122(B) is possibly the most peculiar requirement in the Code. It can be difficult to understand or explain, and virtually impossible to enforce. Let’s try to make sense of what it says. |
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Members Only |  PREMIUM CONTENT: Russ found a big hole on the top of this panelboard enclosure. This is a very dangerous situation. If someone accidentally drops a tool, bracket, bolt, screw, etc. in this hole, it could generate a short circuit and possibly an arc flash. Section 110.12(A) in the 2020 NEC says that unused openings shall be closed to afford protection substantially equivalent to the wall of the equipment. |
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|  Test your knowledge of the NEC with this challenging quiz question from NEC Consultant John Lupacchino. What is the minimum number of transfer switches required in a hospital for a Type 1 Essential Electrical System with a 200kVA load? |
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|  Check out real photos of electrical, telecom, and cable wiring installations gone wrong around the world. |
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| Check out real photos of electrical, telecom, and cable wiring installations gone wrong around the world. |
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