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  1. 2002 NEC Corrections and the 2005 NEC     [ June 5th 2002 ]
  2. 2002 NEC Corrections and the 2005 NEC     [ May 2nd 2003 ]
  3. 2002 NEC Errata     [ February 1st 2002 ]
  4. 2002 NEC Wiring Method Article Numbers     [ June 10th 2002 ]
  5. 2003 Electrical Council Meeting     [ August 16th 2002 ]
  6. 2005 Changes Summary Article 300 to 310     [ October 20th 2004 ]
  7. 2005 National Electrical Code     [ January 9th 2003 ]
  8. 2005 NEC Changes Articles 200 to 220     [ September 29th 2004 ]
  9. 2005 NEC Changes Articles 312 to 330     [ October 27th 2004 ]
  10. 2005 NEC Changes Summary Article 250     [ October 13th 2004 ]
  11. 2005 NEC Changes Summary Article 334 to 388     [ December 28th 2004 ]
  12. 2005 NEC Changes Summary Articles 225 thru 240     [ October 6th 2004 ]
  13. 2005 NEC Changes Summary Articles 400 to 411     [ January 4th 2005 ]
  14. 2005 NEC Changes Summary Articles 422 to 445     [ January 11th 2005 ]
  15. 2005 NEC Changes Summary Articles 500 through 501     [ February 15th 2005 ]
  16. 2005 NEC Changes Summary Articles 511 through 517     [ February 22nd 2005 ]
  17. 2005 NEC Changes Summary Articles 525 through 590     [ March 1st 2005 ]
  18. 2005 NEC Changes Summary Articles 600 through 640     [ March 8th 2005 ]
  19. 2005 NEC Changes Summary Articles 680 through 695     [ March 15th 2005 ]
  20. 2005 NEC Changes Summary Articles 700 through 702     [ March 22nd 2005 ]
  21. 2005 NEC Changes Summary Articles 725 through 770     [ March 29th 2005 ]
  22. 2005 NEC Changes Summary Articles 800 through 830a     [ April 12th 2005 ]
  23. 2005 NEC Changes Summary Articles 90 through 110     [ September 22nd 2004 ]
  24. 2005 NEC Proposals Deadline     [ August 27th 2002 ]
  25. 2008 NEC Questions and Answers April Part 1     [ April 10th 2008 ]
  26. 2008 NEC Questions and Answers April Part 2     [ April 30th 2008 ]
  27. 2008 NEC Questions and Answers August     [ August 7th 2008 ]
  28. 2008 NEC Questions and Answers January - Part 2     [ January 15th 2008 ]
  29. 2008 NEC Questions and Answers January Part 1 of 2     [ January 4th 2008 ]
  30. 2008 NEC Questions and Answers June Part 1     [ June 12th 2008 ]
  31. 2008 NEC Questions and Answers March - Part 1     [ March 12th 2008 ]
  32. 2008 NEC Questions and Answers May Part 1     [ May 16th 2008 ]
  33. 2008 NEC Questions and Answers September     [ September 9th 2008 ]
  34. 2011 Changes to the NEC - 110.16     [ April 12th 2012 ]
  35. 2011 Changes to the NEC - 110.24     [ April 25th 2012 ]
  36. 2011 Changes to the NEC - 110.26     [ May 14th 2012 ]
  37. 2011 Changes to the NEC - 200.6     [ May 29th 2012 ]
  38. 2011 Changes to the NEC - 210.12     [ July 23rd 2012 ]
  39. 2011 Changes to the NEC - 210.4     [ June 6th 2012 ]
  40. 2011 Changes to the NEC - 210.5     [ June 25th 2012 ]
  41. 2011 Changes to the NEC - 210.8     [ July 11th 2012 ]
  42. 2011 Changes to the NEC - 240.21     [ August 24th 2012 ]
  43. 2011 Changes to the NEC - 240.4     [ August 10th 2012 ]
  44. 2011 Changes to the NEC - 250.102     [ February 22nd 2013 ]
  45. 2011 Changes to the NEC - 250.104     [ August 13th 2013 ]
  46. 2011 Changes to the NEC - 250.118     [ September 12th 2013 ]
  47. 2011 Changes to the NEC - 250.30     [ October 22nd 2012 ]
  48. 2011 Changes to the NEC - 250.32     [ November 7th 2012 ]
  49. 2011 Changes to the NEC - 250.52     [ November 27th 2012 ]
  50. 2011 Changes to the NEC - 250.64     [ December 14th 2012 ]
  51. 2011 Changes to the NEC - 250.92     [ January 9th 2013 ]
  52. 2011 Changes to the NEC - 250.94     [ January 25th 2013 ]
  53. 2011 Changes to the NEC - 300.22     [ November 26th 2013 ]
  54. 2011 Changes to the NEC - 300.3     [ October 24th 2013 ]
  55. 2011 Changes to the NEC – 110.14     [ March 22nd 2012 ]
  56. 2011 Changes to the NEC – 110.3     [ March 12th 2012 ]
  57. 2011 Changes to the NEC – 250.24     [ October 8th 2012 ]
  58. 2011 Changes to the NEC – 250.4     [ September 13th 2012 ]
  59. 2011 Changes to the NEC – 250.6     [ September 24th 2012 ]
  60. 2011 Changes to the NEC – 90.2     [ February 17th 2012 ]
  61. 2011 NEC Accepted Revisions     [ July 13th 2009 ]
  62. 2011 NEC Questions & Answers - December 2011     [ December 21st 2011 ]
  63. 2011 NEC Questions & Answers - January 2012     [ January 17th 2012 ]
  64. 2011 NEC Questions & Answers - June 2011     [ June 16th 2011 ]
  65. 2011 NEC Questions & Answers - May 2011     [ May 24th 2011 ]
  66. 2011 NEC Questions & Answers - October 2011 Part 1 of 2     [ October 18th 2011 ]
  67. 2011 NEC Questions & Answers - October 2011 Part 2 of 2     [ November 1st 2011 ]
  68. 2011 NEC Questions & Answers - September 2011 Part 2 of 2     [ September 20th 2011 ]
  69. 2011 NEC Questions & Answers Part 1 - February 2012     [ February 10th 2012 ]
  70. 2011 NEC Questions & Answers Part 2 - February 2012     [ February 28th 2012 ]
  71. 2011 NEC Questions and Answers - April 2012     [ April 20th 2012 ]
  72. 2011 NEC Questions and Answers - August 2012     [ August 28th 2012 ]
  73. 2011 NEC Questions and Answers - July 2012     [ July 17th 2012 ]
  74. 2011 NEC Questions and Answers - June 2012     [ June 19th 2012 ]
  75. 2011 NEC Questions and Answers - May 2013     [ May 21st 2013 ]
  76. 2011 NEC Questions and Answers - October 2012     [ October 12th 2012 ]
  77. 2011 NEC® - Changes of Interest to the Data/Comm Industry     [ March 16th 2011 ]
  78. 2014 NEC Questions and Answers - November 2014     [ November 14th 2014 ]
  79. 250.6 Objectionable Current     [ October 10th 2007 ]
  80. 90.2 Scope of the NEC     [ September 13th 2003 ]
  81. 90.3 Code Arrangement     [ September 20th 2003 ]
  82. 90.4 Enforcement     [ October 4th 2003 ]
  83. 90.4 Enforcement (Inspection)     [ September 26th 2003 ]
  84. AFCI - What It’s All About     [ January 21st 2002 ]
  85. AFCI - Where the Requirements Began     [ July 31st 2002 ]
  86. AFCI Tester - Story of ...     [ August 26th 2002 ]
  87. AFCI Testers versus AFCI Indicators     [ July 28th 2005 ]
  88. AFCI Website     [ August 4th 2002 ]
  89. AFCI Tester a Scam?     [ August 28th 2002 ]
  90. AFCIs and the 2002 NEC     [ January 8th 2002 ]
  91. AFCIs on the Brink     [ February 6th 2007 ]
  92. Air Conditioning and Refrigeration Equipment     [ February 17th 2009 ]
  93. Air Conditioning and Refrigeration Equipment - Article 440, based on the 2011 NEC®     [ April 15th 2013 ]
  94. Alternative Energy Systems, Part 1     [ June 29th 2012 ]
  95. Alternative Energy Systems, Part 2 - Based on the 2011 NEC     [ August 13th 2012 ]
  96. Aluminum Wire Termination     [ April 11th 2003 ]
  97. April NEC Questions and Answers     [ April 18th 2006 ]
  98. Article 100 - General - Qualified Person     [ October 11th 2003 ]
  99. Article 100 General: Separately Derived Systems     [ October 13th 2006 ]
  100. Article 100 General: Solidly Grounded     [ October 6th 2006 ]
  101. Article 100 General: System Bonding Jumper     [ September 29th 2006 ]
  102. Article 110 - Flash Protection     [ October 25th 2003 ]
  103. Article 110 - Requirements for Electrical Installations - Based on the 2014 NEC     [ January 14th 2014 ]
  104. Article 110 - Spaces About Electrical Equipment     [ November 1st 2003 ]
  105. Article 110 - Spaces About Electrical Equipment II     [ November 8th 2003 ]
  106. Article 110: Requirements for Electrical Installations – Based on the 2011 NEC     [ February 28th 2011 ]
  107. Article 210 - Branch Circuits     [ November 15th 2003 ]
  108. Article 210 - Branch Circuits, based on the 2014 NEC®     [ February 18th 2014 ]
  109. Article 210 Branch Circuits 210.4     [ October 20th 2006 ]
  110. Article 210 Branch Circuits 210.5     [ October 27th 2006 ]
  111. Article 210 Branch Circuits 210.8     [ November 3rd 2006 ]
  112. Article 210 Branch Circuits 210.8     [ November 10th 2006 ]
  113. Article 210 Branch Circuits I     [ November 15th 2003 ]
  114. Article 210.12 Arc-Fault Circuit-Interrupter Protection for Personnel     [ November 29th 2003 ]
  115. Article 210.63 Heating Air Conditioning and Refrigeration Equipment Outlet     [ December 6th 2003 ]
  116. Article 210.8 Ground-Fault Circuit-Interrupter Protection for Personnel     [ November 22nd 2003 ]
  117. Article 210: Branch Circuits, Part One: Conductor sizing and Overcurrent Protection     [ January 31st 2007 ]
  118. Article 210: Branch Circuits, Part Two: GFCIs and AFCIs     [ February 20th 2007 ]
  119. Article 215: Feeders     [ May 2nd 2007 ]
  120. Article 225: Outside Branch Circuits     [ May 9th 2007 ]
  121. Article 230 - Services     [ February 19th 2002 ]
  122. Article 230 - Services, based on the 2014 NEC     [ March 18th 2014 ]
  123. Article 230 Service Disconnect General 1     [ December 20th 2003 ]
  124. Article 230 Service Disconnect General 2     [ December 28th 2003 ]
  125. Article 230 Services - EC&M Magazine     [ October 14th 2003 ]
  126. Article 230: Services, Part 1: Equipment Requirements     [ April 17th 2007 ]
  127. Article 230: Services, Part 2: Conductor Requirements     [ May 16th 2007 ]
  128. Article 240 Overcurrent Protection     [ December 9th 2006 ]
  129. Article 240 Overcurrent Protection I     [ January 5th 2004 ]
  130. Article 240 Overcurrent Protection II     [ January 11th 2004 ]
  131. Article 240 Overcurrent Protection III     [ January 18th 2004 ]
  132. Article 240 Overcurrent Protection IV     [ January 25th 2004 ]
  133. Article 240: Overcurrent Protection     [ May 22nd 2007 ]
  134. Article 240: Overcurrent Protection     [ October 21st 2003 ]
  135. Article 250 - Grounding and Bonding Part 1, Based on the 2014 NEC     [ April 15th 2014 ]
  136. Article 250 - Grounding and Bonding Part 2, Based on the 2014 NEC     [ May 7th 2014 ]
  137. Article 250 Circuit and System Grounding I     [ March 21st 2004 ]
  138. Article 250 General Definitions I     [ February 1st 2004 ]
  139. Article 250 General Definitions I Reissued     [ February 8th 2004 ]
  140. Article 250 General Requirements for Grounding and Bonding I     [ February 15th 2004 ]
  141. Article 250 General Requirements for Grounding and Bonding I     [ February 15th 2004 ]
  142. Article 250 General Requirements for Grounding and Bonding II     [ February 22nd 2004 ]
  143. Article 250 General Requirements for Grounding and Bonding III     [ February 29th 2004 ]
  144. Article 250 General Requirements for Grounding and Bonding IV     [ March 7th 2004 ]
  145. Article 250 General Requirements for Grounding and Bonding V     [ March 14th 2004 ]
  146. Article 250 Grounding and Bonding 250.2     [ December 15th 2006 ]
  147. Article 250 Grounding and Bonding 250.34     [ January 26th 2007 ]
  148. Article 250 Grounding and Bonding 250.4     [ December 22nd 2006 ]
  149. Article 250 Grounding and Bonding 250.52     [ February 9th 2007 ]
  150. Article 250 Grounding and Bonding 250.64     [ February 16th 2007 ]
  151. Article 250 Grounding and Bonding 250.8     [ January 12th 2007 ]
  152. Article 300 - Branch-Circuit, Feeder, and Service Calculations     [ May 29th 2014 ]
  153. Article 300 Wiring Methods I     [ March 28th 2004 ]
  154. Article 300 Wiring Methods II     [ April 4th 2004 ]
  155. Article 300: Wiring Methods     [ October 29th 2003 ]
  156. Article 310 Conductors for General Wiring     [ February 23rd 2007 ]
  157. Article 310 Conductors for General Wiring I     [ April 11th 2004 ]
  158. Article 310 Conductors for General Wiring II     [ April 18th 2004 ]
  159. Article 314 Outlet Device, Pull and Junction Boxes, Conduit Bodies, and Handhole Enclosures     [ March 2nd 2007 ]
  160. Article 320 Armored Cable: Type AC     [ March 9th 2007 ]
  161. Article 330 Metal-Clad Cable: Type MC - 330.108     [ March 30th 2007 ]
  162. Article 330 Metal-Clad Cable: Type MC - 330.30     [ March 16th 2007 ]
  163. Article 334 (336 in 1999 NEC)     [ May 2nd 2004 ]
  164. Article 348 Flexible Metal Conduit: Type FMC - 348.30     [ April 13th 2007 ]
  165. Article 376 (362 in 1999 NEC)     [ May 9th 2004 ]
  166. Article 376 (362 in 1999 NEC) II     [ May 16th 2004 ]
  167. Article 400 Flexible Cords - 400.5     [ April 20th 2007 ]
  168. Article 400 I     [ May 23rd 2004 ]
  169. Article 400 II     [ June 6th 2004 ]
  170. Article 400 – Flexible Cords and Flexible Cables, based on the 2014 NEC®     [ August 28th 2014 ]
  171. Article 404 (380 in 1999 NEC) SWITCHES     [ June 13th 2004 ]
  172. Article 404: Switches     [ June 24th 2004 ]
  173. Article 406 I     [ June 20th 2004 ]
  174. Article 406 II     [ June 27th 2004 ]
  175. Article 406 III     [ July 11th 2004 ]
  176. Article 406 IV     [ July 25th 2004 ]
  177. Article 406 Receptacles     [ June 28th 2004 ]
  178. Article 406 Receptacles, Cord Connectors, and Attachment Plugs - 406.4     [ April 27th 2007 ]
  179. Article 406 Receptacles, Cord Connectors, and Attachment Plugs - 406.8 Cont.     [ May 18th 2007 ]
  180. Article 406 V     [ August 1st 2004 ]
  181. Article 408 (384 in 1999 NEC) I     [ August 8th 2004 ]
  182. Article 408 (384 in 1999 NEC) II     [ August 15th 2004 ]
  183. Article 408 (384 in 1999 NEC) III     [ August 22nd 2004 ]
  184. Article 408 Switchboards and Panelboards - 408.4     [ May 25th 2007 ]
  185. Article 408 Switchboards and Panelboards - 408.7     [ June 1st 2007 ]
  186. Article 410 Luminaires (Lighting Fixtures), Lampholders, and Lamps - 410.110     [ July 27th 2007 ]
  187. Article 410 Luminaires (Lighting Fixtures), Lampholders, and Lamps - 410.73     [ June 29th 2007 ]
  188. Article 422 Appliances - 422.16 Flexible Cords     [ August 3rd 2007 ]
  189. Article 424: Fixed Electric Space-heating     [ January 18th 2008 ]
  190. Article 430 Motors I     [ August 29th 2004 ]
  191. Article 430 Motors II     [ September 5th 2004 ]
  192. Article 430 Motors Motor Circuits and Controllers     [ November 26th 2003 ]
  193. Article 440 Air Conditioning and Refrigerating Equipment     [ January 2nd 2004 ]
  194. Article 440 Air Conditioning and Refrigerating Equipment I     [ September 12th 2004 ]
  195. Article 450 Transformers     [ January 7th 2004 ]
  196. Article 450: Transformers and Transformer Vaults     [ February 1st 2008 ]
  197. Article 500 Hazardous (Classified) Locations I     [ September 17th 2004 ]
  198. Article 500: Hazardous (classified) Locations     [ October 27th 2005 ]
  199. Article 501 Class I Locations - 501.15     [ August 17th 2007 ]
  200. Article 501: Class I Locations     [ November 10th 2005 ]
  201. Article 511 - Commercial Garages, Repair and Storage     [ October 25th 2002 ]
  202. Article 511 Commercial Garages Repair and Storage     [ October 1st 2004 ]
  203. Article 513 Aircraft Hangars - 513.12     [ August 24th 2007 ]
  204. Article 514 - Motor Fuel Dispensing Facilities     [ November 24th 2002 ]
  205. Article 514 Motor Fuel Dispensing Facilities     [ October 3rd 2004 ]
  206. Article 517 Healthcare Facilities I     [ October 10th 2004 ]
  207. Article 517 Healthcare Facilities II     [ October 17th 2004 ]
  208. Article 517: Healthcare Facilities     [ March 26th 2004 ]
  209. Article 525 Carnivals Circuses Fairs and Similar Events     [ October 22nd 2004 ]
  210. Article 525 Carnivals, Circuses, Fairs, and Similar Events     [ September 19th 2004 ]
  211. Article 525: Carnivals, Circuses, Fairs, and Similar Events     [ November 29th 2005 ]
  212. Article 527 - Temporary Installations     [ December 10th 2002 ]
  213. Article 527 Temporary Installations     [ September 26th 2004 ]
  214. Article 527 Temporary Installations     [ October 24th 2004 ]
  215. Article 547 Agricultural Buildings - 547.10     [ September 14th 2007 ]
  216. Article 547 Agricultural Buildings - 547.5     [ September 7th 2007 ]
  217. Article 547 Agricultural Buildings I     [ November 7th 2004 ]
  218. Article 547 Agricultural Buildings II     [ November 14th 2004 ]
  219. Article 547 Agricultural Buildings III     [ November 21st 2004 ]
  220. Article 547 Agricultural Buildings IV     [ November 28th 2004 ]
  221. Article 555 Marinas and Boatyards - 555.22     [ September 21st 2007 ]
  222. Article 555 Marinas and Boatyards I     [ December 5th 2004 ]
  223. Article 555 Marinas and Boatyards II     [ December 10th 2004 ]
  224. Article 555 Marinas and Boatyards III     [ December 12th 2004 ]
  225. Article 555: Marinas and Boatyards     [ January 27th 2006 ]
  226. Article 590 Temporary Installations - 590.4     [ September 28th 2007 ]
  227. Article 600 Signs     [ December 19th 2004 ]
  228. Article 600: Electric Signs and Outline Lighting     [ February 18th 2008 ]
  229. Article 640 Audio Signal Processing I     [ December 26th 2004 ]
  230. Article 640 Audio Signal Processing II     [ December 31st 2004 ]
  231. Article 645 - Code Basics     [ January 2nd 2003 ]
  232. Article 645: Information Technology Equipment     [ February 7th 2006 ]
  233. Article 645: Information Technology Equipment     [ April 17th 2012 ]
  234. Article 647 Sensitive Electronic Equipment     [ January 2nd 2005 ]
  235. Article 680 - Swimming Pool Installations     [ December 27th 2002 ]
  236. Article 680 Pools and Similar Installations - 2008 NEC     [ November 24th 2009 ]
  237. Article 680 Pools and Similar Installations - Part 1 of 2     [ October 12th 2009 ]
  238. Article 680 Swimming Pools Fountains and Similar Installations     [ January 16th 2005 ]
  239. Article 680 Swimming Pools Fountains and Similar Installations II     [ January 23rd 2005 ]
  240. Article 680 Swimming Pools Fountains and Similar Installations III     [ January 28th 2005 ]
  241. Article 680 Swimming Pools Fountains and Similar Installations IV     [ January 30th 2005 ]
  242. Article 680 Swimming Pools Fountains and Similar Installations V     [ February 6th 2005 ]
  243. Article 680 Swimming Pools, Spas, Hot Tubs, Fountains, and Similar Installations     [ October 5th 2007 ]
  244. Article 680 Swimmng Pools, Spas, Hot Tubs, Fountains, and Similar Installations - 680.26     [ October 19th 2007 ]
  245. Article 680: Swimming Pools and Spas     [ May 25th 2012 ]
  246. Article 690 Solar Photovoltaic Systems I     [ February 13th 2005 ]
  247. Article 692 FUEL CELL SYSTEMS I     [ February 20th 2005 ]
  248. Article 692 FUEL CELL SYSTEMS II     [ February 27th 2005 ]
  249. Article 692 FUEL CELL SYSTEMS III     [ March 6th 2005 ]
  250. Article 695 - Fire Pumps     [ January 3rd 2003 ]
  251. Article 695 Fire Pumps - 695.6     [ November 2nd 2007 ]
  252. Article 695: Fire Pumps     [ February 14th 2006 ]
  253. Article 700 Emergency Systems     [ March 13th 2005 ]
  254. Article 700: Emergency Systems     [ April 20th 2006 ]
  255. Article 725 - Class 1, Class 2, and Class 3 Remote-Control, Signaling, and Power-Limited Circuits I     [ March 20th 2005 ]
  256. Article 725 - Class 1, Class 2, and Class 3 Remote-Control, Signaling, and Power-Limited Circuits II[ March 27th 2005 ]
  257. Article 725 - Class 1, Class 2, and Class 3 Remote-Control, Signaling, and Power-Limited Circuits III<     [ April 3rd 2005 ]
  258. Article 725 - Class 1, Class 2, and Class 3 Remote-Control, Signaling, and Power-Limited Circuits IV[ April 10th 2005 ]
  259. Article 725 - Code Basics     [ December 17th 2002 ]
  260. Article 725 Class 1, 2, and Class 3 Remote-Control, Signaling, and Power-Limited Circuits - 725.3     [ November 16th 2007 ]
  261. Article 725 Class 1, Class 2, and Class 3 Remote-Control, Signaling, and Power-Limited Circuits - 725.61     [ November 30th 2007 ]
  262. Article 725: Class 1 Remote-Control, Signaling, and Power-Limited Circuits     [ May 8th 2006 ]
  263. Article 725: Class 2 and 3 Remote-Control, Signaling, and Power-Limited Circuits (Part 2 of 2)     [ May 30th 2006 ]
  264. Article 760 - Fire Alarm Signaling Systems     [ January 6th 2003 ]
  265. Article 760 Fire Alarm Systems     [ January 19th 2010 ]
  266. Article 760 Fire Alarm Systems - 760.21     [ December 14th 2007 ]
  267. Article 760: Fire Alarm Systems     [ July 24th 2006 ]
  268. Article 770 - Optical Fiber Cables and Raceways     [ January 8th 2003 ]
  269. Article 770: Optical Fiber Cables     [ July 26th 2006 ]
  270. Article 800 - Communications Circuits     [ January 9th 2003 ]
  271. Article 800 - Communications Systems     [ October 23rd 2002 ]
  272. Article 800 Communication Circuits I     [ April 17th 2005 ]
  273. Article 800 Communication Circuits II     [ April 24th 2005 ]
  274. Article 800 Communication Circuits III     [ May 1st 2005 ]
  275. Article 800 Communication Circuits IV     [ May 8th 2005 ]
  276. Article 800: Communications Circuits     [ November 6th 2006 ]
  277. Article 810 - Radio and Television Equipment     [ January 10th 2003 ]
  278. Article 810 - Radio and Television Equipment - Free Booklet     [ July 22nd 2011 ]
  279. Article 810 Radio and Television Equipment     [ December 4th 2006 ]
  280. Article 810 Radio and Television Equipment I     [ May 15th 2005 ]
  281. Article 810 Radio and Television Equipment II     [ May 22nd 2005 ]
  282. Article 820 - Code Basics     [ February 14th 2003 ]
  283. Article 820: Community Antenna Television (CATV) and Radio Distribution Systems     [ January 5th 2007 ]
  284. Article 90 Introduction     [ September 22nd 2006 ]
  285. Articles 310, 312, 314 - The Four Pillars of Chapter Three, based on the 2014 NEC     [ June 16th 2014 ]
  286. Articles 514 through 525     [ February 21st 2012 ]
  287. Articles 547 through 590     [ March 27th 2012 ]
  288. Articles 701 and 702: Legally Required and Optional Standby Systems     [ May 4th 2006 ]
  289. Attend an EC&M 2008 NEC Code Change Conference at a reduced registration fee!     [ October 8th 2007 ]
  290. Attention Fellow NEC Instructors     [ November 27th 2002 ]
  291. Backup Power Systems - 2008 Edition Part 1 of 4     [ May 18th 2009 ]
  292. Backup Power Systems - 2008 Edition Part 2 of 4     [ June 24th 2009 ]
  293. Backup Power Systems - 2008 Edition Part 3 of 4     [ July 22nd 2009 ]
  294. Backup Power Systems - 2008 Edition Part 4 of 4     [ August 25th 2009 ]
  295. Become Part of Mike\'s "2005 NEC Team"     [ August 11th 2003 ]
  296. Box Fill Calculations     [ July 24th 2008 ]
  297. Box Sizing – based on the 2014 NEC®     [ October 13th 2014 ]
  298. Boxes, conduit bodies, and handhole enclosures - Based on the 2011 NEC     [ July 19th 2011 ]
  299. Boy's Electrocution Ruled Accidental     [ January 12th 2009 ]
  300. Branch Circuits - Part 1     [ October 26th 2010 ]
  301. Branch Circuits - Part 2 of 2     [ November 29th 2010 ]
  302. Cables and the Code – Based on the 2011 NEC     [ August 9th 2011 ]
  303. Can You Spot the 2011 Code Violations (with answers)?     [ May 12th 2011 ]
  304. CATV and Radio Distribution Systems - Article 820, based on the 2011 NEC     [ June 18th 2013 ]
  305. Class I Hazardous Locations – Based on the 2011 NEC     [ January 11th 2012 ]
  306. Code Changes Preview - Free Online Seminar Friday     [ October 4th 2007 ]
  307. Commercial Garages     [ March 11th 2010 ]
  308. Commercial Load Calculations - Part 1     [ August 11th 2009 ]
  309. Commercial Load Calculations - Part 2     [ September 28th 2009 ]
  310. Common Ground in Article 100 – Based on the 2011 NEC     [ February 23rd 2011 ]
  311. Communications Circuits - Article 800, based on the 2011 NEC®     [ April 9th 2013 ]
  312. Communications Systems - Understanding NEC Requirements     [ June 26th 2009 ]
  313. Conductor Size Matters     [ June 23rd 2008 ]
  314. Conductor Sizing, Part 1 - based on the 2014 NEC     [ November 17th 2014 ]
  315. Conductor Sizing, Part 2 - based on the 2014 NEC     [ December 12th 2014 ]
  316. Conductors for General Use - Based on the 2011 NEC     [ June 29th 2011 ]
  317. Cooper Bussman Info     [ April 29th 2002 ]
  318. Cords and Fixture Wires     [ November 20th 2003 ]
  319. Cords and Fixture Wires     [ December 29th 2003 ]
  320. Danger of Open Service Neutral     [ August 16th 2002 ]
  321. Developing Good NEC Proposals     [ September 4th 2008 ]
  322. Disconnect Requirements for Articles 422 through 450 – Based on the 2011 NEC     [ November 7th 2011 ]
  323. Dwelling Unit Calculations     [ April 28th 2009 ]
  324. ECM Questions     [ February 17th 2006 ]
  325. Electric Signs and Outline Lighting - Article 600, based on the 2011 NEC     [ January 23rd 2013 ]
  326. Electrical Circuit Breakers     [ April 19th 2002 ]
  327. Electrical Services, Part 1     [ November 12th 2008 ]
  328. Electrical Services, Part 2     [ November 19th 2008 ]
  329. Emergency Systems - Article 700, based on the 2011 NEC®     [ March 6th 2013 ]
  330. Equipotential Grids Required by the NEC - Are they Useless?     [ March 14th 2007 ]
  331. EV Charging System - Article 625, based on the 2011 NEC     [ February 18th 2013 ]
  332. Evaluating Water-Damaged Electrical Equipment     [ January 10th 2007 ]
  333. FCC Information Sheet - Over-the-Air Reception Devices Rule     [ July 18th 2007 ]
  334. Feeder and Secondary Tap Rules     [ March 26th 2002 ]
  335. Feeder Taps     [ November 27th 2007 ]
  336. Fire Alarm Systems - Article 760, based on the 2011 NEC     [ May 28th 2013 ]
  337. Fire Pumps - Article 695, based on the 2011 NEC     [ February 28th 2013 ]
  338. Flexible Cords, Cables and Fixture Wire     [ January 8th 2010 ]
  339. Free Ground Wire Sizing Software and More     [ September 23rd 2003 ]
  340. FREE PDF Download! Article 680 - Swimming Pools, Spas, Hot Tubs, Fountains, and Similar Installations     [ March 6th 2006 ]
  341. Free Resource - 2011 NEC Index     [ September 26th 2011 ]
  342. Free Webcast - Critical Operations Power Systems - NEC Article 708     [ May 13th 2008 ]
  343. Generators and Standby Power Systems - Based on the 2011 NEC®     [ March 14th 2013 ]
  344. Get Up to Speed on the 2005 NEC     [ February 25th 2005 ]
  345. Getting you Ready for the 2005 NEC     [ September 15th 2004 ]
  346. Ground-Fault Circuit-Interrupter Protection for Personnel     [ January 5th 2002 ]
  347. Grounding and Bonding of Separately Derived Systems     [ December 6th 2007 ]
  348. Grounding and Bonding, Part 1 - Based on the 2011NEC     [ May 9th 2011 ]
  349. Grounding and Bonding, Part 2 - Based on the 2011 NEC     [ May 30th 2011 ]
  350. Grounding and Bonding, Part 3 - Based on the 2011 NEC     [ June 14th 2011 ]
  351. Health Care Facilities     [ March 9th 2009 ]
  352. Health Care Facilities – Article 517, based on the 2014 NEC     [ August 18th 2014 ]
  353. How much working space is enough?     [ August 14th 2008 ]
  354. How the NEC Began     [ October 11th 2002 ]
  355. IEC Members Vote on Proposals for NEC Code-Making Panels     [ March 21st 2003 ]
  356. Interconnected Electric Power Sources - Article 705, Based on the 2011 NEC®     [ May 7th 2013 ]
  357. Interesting Method of Terminating Conductors     [ December 13th 2004 ]
  358. Investigation on Branch/Feeder Arc Fault Circuit Interrupter Incorporating Equipment Ground Fault Protection     [ October 2nd 2008 ]
  359. Is the National Electrical Code in Public Domain?     [ September 16th 2003 ]
  360. Junction Box Sizing     [ June 30th 2008 ]
  361. Learn the 2011 Code Changes and Get Motivated with Mike Holt     [ June 8th 2012 ]
  362. Luminaires - Based on the 2011 NEC     [ October 12th 2011 ]
  363. Marinas and Boatyards - Article 555, based on the 2011 NEC     [ December 19th 2012 ]
  364. Member Wants to Help Others in Indonesia     [ October 2nd 2002 ]
  365. Mike Holt Proposes Removal of AFCI\'s (210.12) from the 2005 NEC     [ October 28th 2002 ]
  366. More Than One Neutral Conductors on a Terminal - Update     [ August 2nd 2004 ]
  367. More Than One Neutral Under a Terminal     [ July 30th 2004 ]
  368. Most Common Installation Deficiencies - 1999 (Part 3 of 3)     [ January 25th 2006 ]
  369. Most Common Installation Deficiencies - 2002 (Part 2 of 3)     [ January 17th 2006 ]
  370. Most Common Installation Deficiencies - 2005 (Part 1 of 3)     [ January 11th 2006 ]
  371. Motor Calculations     [ July 7th 2008 ]
  372. Motors and the NEC - Based on the 2011 NEC     [ December 7th 2012 ]
  373. Multifamily Dwelling Unit Service and Feeder Calculations     [ June 15th 2009 ]
  374. NASA Gets it Wrong!     [ August 17th 2006 ]
  375. National Electrical Code Changes Book     [ August 16th 2004 ]
  376. Nebraska Adopts 2002 NEC without AFCI Protection!     [ July 30th 2002 ]
  377. NEC 250.94 - Bonding for Other Systems     [ July 13th 2010 ]
  378. NEC Adoption Status Update June 2003     [ June 11th 2003 ]
  379. NEC Adoption Status Update June 2005     [ April 28th 2005 ]
  380. NEC Adoption Status Update June 2005     [ April 28th 2005 ]
  381. NEC Adoption Status Update May 2003     [ May 15th 2003 ]
  382. NEC Article 200 through 285 Review     [ February 25th 2004 ]
  383. NEC Article 400 through 460 Review     [ March 10th 2004 ]
  384. NEC Article 80 through 110 Review     [ February 18th 2004 ]
  385. NEC Article Review Article 300 through 392     [ March 3rd 2004 ]
  386. NEC Chapter 5 Review     [ March 31st 2004 ]
  387. NEC Chapter 6 Review     [ April 7th 2004 ]
  388. NEC Chapter 7 Review     [ April 14th 2004 ]
  389. NEC Chapter 8 Review     [ April 21st 2004 ]
  390. NEC History of GFCI Protection Requirements     [ August 29th 2003 ]
  391. NEC Questions and Answers - March Part 1 of 2     [ March 15th 2007 ]
  392. NEC Questions and Answers - March Part 2 of 2     [ March 29th 2007 ]
  393. NEC Questions and Answers - May     [ May 16th 2006 ]
  394. NEC Questions and Answers June Part 1 of 2     [ June 19th 2007 ]
  395. NEC Questions and Answers June Part 2 of 2     [ July 6th 2007 ]
  396. NEC Questions and Answers May Part 1 of 2     [ May 15th 2007 ]
  397. NEC Questions and Answers May Part 2 of 2     [ May 31st 2007 ]
  398. NEC Questions and Answers – January 2007     [ January 29th 2007 ]
  399. NEC Update National Electrical Installation Standards     [ May 6th 2003 ]
  400. NEC Video Team Members Needed     [ October 4th 2004 ]
  401. NEMA Standards Publication - Application Guide for Electric Fire Pump Controllers     [ October 6th 2008 ]
  402. NFPA: Legally Blinded?     [ September 17th 2003 ]
  403. No EMT Fitting is Listed as Raintight!     [ June 11th 2003 ]
  404. October NEC Questions and Answers     [ October 28th 2005 ]
  405. Ohio Reverts back to the 2005 NEC, but does it end there?     [ April 4th 2008 ]
  406. Optical Fiber Cables and Raceways - Article 770, based on the 2011 NEC®     [ March 12th 2013 ]
  407. Origins of the National Electrical Code     [ November 3rd 2008 ]
  408. Outside Branch Circuits and Feeders - Based on the 2011 NEC     [ September 7th 2012 ]
  409. Overcurrent Protection - Based on the 2011 NEC     [ October 4th 2012 ]
  410. Overcurrents and Undercurrents     [ January 17th 2002 ]
  411. Photovoltaic Power Systems and the 2005 National Electrical Code - Suggested Practices     [ October 31st 2006 ]
  412. Pools and Spas, Part 1 of 3     [ September 24th 2008 ]
  413. Pools and Spas, Part 2 of 3     [ October 8th 2008 ]
  414. Pools and Spas, Part 3 of 3     [ November 6th 2008 ]
  415. Proposals for 2005 NEC (NFPA 70)     [ July 9th 2003 ]
  416. Proposed Changes for the 2005 NEC     [ May 28th 2003 ]
  417. Protection of Metering Installations     [ July 20th 2002 ]
  418. Raceway Fill     [ June 19th 2008 ]
  419. Raceway Sizing – based on the 2014 NEC®     [ September 11th 2014 ]
  420. Raceways - Based on the 2011 NEC     [ August 15th 2011 ]
  421. Raceways, Underground - Why They Need to be Sealed     [ June 23rd 2003 ]
  422. Radio and Television Equipment - Article 810, based on the 2011 NEC     [ June 11th 2013 ]
  423. Report on Discussions During UL Meetings with Electrical Inspectors at the 2006 IAEI Section Meetings     [ September 19th 2007 ]
  424. Revisions to the 2005 NEC     [ January 21st 2005 ]
  425. Section 680.26 Equipotential Bonding     [ October 10th 2014 ]
  426. Shedding Light on Article 410 - based on the 2011 NEC     [ November 19th 2012 ]
  427. Significant Proposals for 2005 NEC Part I     [ December 17th 2003 ]
  428. Significant Proposals for 2005 NEC Part II     [ December 30th 2003 ]
  429. Significant Proposals for 2005 NEC Part III     [ January 6th 2004 ]
  430. Significant Proposals for 2005 NEC Part IV     [ January 13th 2004 ]
  431. Significant Proposals for 2005 NEC Part IX     [ February 24th 2004 ]
  432. Significant Proposals for 2005 NEC Part V     [ January 20th 2004 ]
  433. Significant Proposals for 2005 NEC Part VI     [ January 27th 2004 ]
  434. Significant Proposals for 2005 NEC Part VII     [ February 10th 2004 ]
  435. Significant Proposals for 2005 NEC Part VIII     [ February 17th 2004 ]
  436. Significant Proposals for 2005 NEC Part X     [ March 2nd 2004 ]
  437. Significant Proposals for 2005 NEC Part XI     [ March 9th 2004 ]
  438. Significant Proposals for 2005 NEC Part XII     [ March 16th 2004 ]
  439. Significant Proposals for 2005 NEC Part XIII     [ March 23rd 2004 ]
  440. Significant Proposals for 2005 NEC Part XIV     [ March 30th 2004 ]
  441. Significant Proposals for 2005 NEC Part XV     [ April 6th 2004 ]
  442. Significant Proposals for 2005 NEC Part XVI     [ April 13th 2004 ]
  443. Significant Proposals for 2005 NEC Part XVII     [ April 20th 2004 ]
  444. Slowblow (Time Delay) Fuses for Control Transformers     [ April 27th 2002 ]
  445. Small Wind Electric Systems - Article 694, based on the 2011 NEC®     [ March 21st 2013 ]
  446. Solar Photovoltaic Systems - Part 1     [ August 4th 2010 ]
  447. Solar Photovoltaic Systems - Part 2     [ September 16th 2010 ]
  448. Standby Power Systems     [ September 20th 2002 ]
  449. State Warns Of Faulty Satellite TV Installations     [ June 21st 2006 ]
  450. Steel Tube Institute Announces Availabilityof New \'Guidelines for Installing Steel Conduit/Tubing\'     [ December 30th 2004 ]
  451. Subject - Article 410 Luminaires (Lighting Fixtures), Lampholders, and Lamps     [ June 8th 2007 ]
  452. Successful Grounding Versus Bonding Live Webinar with Mike Holt     [ May 31st 2012 ]
  453. Surge Arresters and Transient Voltage Surge Suppressors (TVSSs)     [ July 25th 2002 ]
  454. Surge Suppression Devices     [ January 16th 2009 ]
  455. Switchboards and Panelboards     [ January 29th 2010 ]
  456. Switches, Receptacles, and Panelboards – Based on the 2011 NEC     [ September 15th 2011 ]
  457. Switches, Receptacles, Cord Connectors, and Caps - Based on the 2014 NEC     [ June 27th 2014 ]
  458. Taking 110.3(B) too far?     [ April 18th 2006 ]
  459. Temporary Installations     [ February 11th 2010 ]
  460. Thank You     [ May 10th 2004 ]
  461. TIA No. 1005 on NFPA 70, National Electrical Code®, 2011 edition     [ March 14th 2011 ]
  462. Transformer Installation     [ May 16th 2002 ]
  463. Transformer Secondary Conductors     [ November 29th 2007 ]
  464. Transformer Stacking     [ April 19th 2004 ]
  465. Transformers – Article 450, based on the 2014 NEC®     [ July 16th 2014 ]
  466. UL Code Authority Publication     [ August 4th 2005 ]
  467. UL White Book - Electronic Version Available     [ October 15th 2003 ]
  468. Understanding the Latest Changes to the 2005 NEC Cooper Bussman Press Release     [ February 17th 2005 ]
  469. Understanding the NEC Rules for Backup Power Systems – Part 4 of 4     [ December 26th 2006 ]
  470. Universal Electrical Power System - History     [ February 15th 2002 ]
  471. Updated Requirements for Services and Overcurrent Protection - Based on the 2011 NEC     [ April 6th 2011 ]
  472. Use of Anti Short Bushings for Terminating Type MC Cable     [ June 30th 2005 ]
  473. What is all the Fuss About NEC Article 708?     [ June 20th 2008 ]
  474. What is Arc Flash?     [ May 12th 2004 ]
  475. What is Flexible Metal Tubing Article 360     [ November 8th 2004 ]
  476. When Can I Use 90°C Conductor Ampacity for Feeders?     [ September 14th 2004 ]
  477. Will the National Electrical Code be Free?     [ July 1st 2003 ]
  478. Wiring Methods - Based on the 2011 NEC     [ June 21st 2011 ]
  479. Wiring Methods - Part 1 of 3     [ October 26th 2009 ]
  480. Wiring Methods - Part 2 of 3     [ November 11th 2009 ]
  481. Wiring Methods - Part 3 of 3     [ December 15th 2009 ]
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