Do your raceway and box calculations quickly and correctly, every time. Mike Holt's Raceway and Box Calculations course teaches you how to size raceways, nipples, outlet boxes, junction boxes, pull boxes, surface raceways, and wireways. It includes coverage of Articles 352, 362, and 370 plus Chapter 9. Based on the 2008 NEC. Video portion is in DVD format.

Size conductors right, the first time. Learn how to quickly and correctly perform the calculations so they conform to the 2008 NEC. Mike Holt's Conductor Sizing and Protection course teaches conductor ampacity calculations, correcting for ambient temperature, conductor bunching, effects of terminal rating on conductor sizing; next size up protection; and tap rules. 8-Hour CEU Credit. Based on the 2008 NEC. Video portion is on DVD.

Size motors and motor circuits right, the first time. Mike Holt's Motor and Air-Conditioning Calculations course teaches you how to properly size motor conductors, overcurrent protection, short-circuit ground-fault protection for branch circuits and feeders. Articles 240, 310, 430 and 450. Includes one 2-hour DVD and textbook. 4-Hour CEU Credit. Based on the 2008 NEC.

Get voltage-drop calculations right, the first time. Mike Holt's Voltage Drop Calculations course explains wire sizing, maximum distance, the effects of harmonic currents, multiwire branch circuits, copper versus aluminum, AC versus DC, metallic versus nonmetallic raceways, skin effect, and eddy currents. Includes Articles 210, 215, 230, 250, and 310. Includes one 2-hour DVD and textbook. Based on the 2008 NEC.

Size residential circuits and protection devices right, the first time. Mike Holt's Residential Calculations course teaches you how to properly perform calculations for residential branch circuits, feeders, and services. Based on the 2008 NEC Articles 210, 220, 240, 310, and Appendix D. Includes one 3-hour DVD and textbook.

Size multifamily feeders and loads right, the first time. Mike Holt's Multifamily Dwellings Calculations course teaches you how to properly perform calculations for multifamily feeders and loads, using standard and optional methods. Based on the 2008 NEC Articles 210, 240, and 310. Includes one 3-hour DVD and textbook.

Get your commercial electrical load calculations right, the first time. Learn how to quickly and correctly perform the calculations for services, feeders, branch circuits, and various specific loads (such as HVAC). Let Mike Holt's Commercial Calculations course give you the knowledge you need to comply with the 2008 NEC, Articles 220, 240, 310, 550, 551, and 555. Video portion is on DVD.

Don't let transformer calculations phase you. Mike Holt's Transformer Calculations course shows you how to get these calculations right, every time. Topics include voltage systems (120/240, 208Y/120, 480Y/277), transformer balancing, transformer sizing, panel balancing, conductor sizing, primary protection sizing, secondary protection sizing, grounding, and bonding. Based on the 2008 NEC. Video portion is in DVD format.

Now you can do your Journeyman electrical calculations quickly and accurately. Mike Holt's Journeyman Calculations Library contains an easy to follow textbook and videos made from live classes. You will fully understand the concepts behind the electrical calculations, so that you get them right every time. Based on the 2008 NEC. Video portion is in DVD format.

Now you can ensure you don't make the kinds of electrical calculation errors that cause project cost over runs and lead to expensive litigation. Mike Holt's Masters Calculations Library contains an easy to follow textbook and videos made from live classes. You will fully understand the concepts behind the full range of electrical calculations, so you can do them quickly and correctly. Based on the 2008 NEC. Video portion is in DVD format.

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Pass your Master Electrician and Contractor Exam the first time, if you have a solid foundation in electrical theory and some NEC training. The Master Electrician Intermediate Exam Preparation Library helps you master electrical theory and electrical calculations, while beefing up your NEC skills. Beat that tough electrical exam and do accurate work in the field with greater speed. Based on the 2008 NEC. Video portion is on DVD.

This handy reference of electrical formulas and sample calculations is 4.25 x 9 in, so you can carry it with you in your toolbox, pocket, or glove box. This edition is an easy-to-use reference for working with electrical formulas and calculations. It's informative, practical, useful, informal, easy to read, and applicable for today's electrical worker. It contains a wealth of full-color illustrations that apply to today's electrical installations.

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This weatherproof OHM's Law Wheel Watch with quartz movement keeps those important electrical formulas even closer than handy. While you may enjoy sporting your own, it also makes an excellent gift for anyone working in the electrical industry. Black face with gold lettering.

This weatherproof OHM's Law Wheel Watch with quartz movement keeps those important electrical formulas even closer than handy. While you may enjoy sporting your own, it also makes an excellent gift for anyone working in the electrical industry. Gold face with black lettering.

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Master mathematics the easy way. Improve your basic math skills with this course. This practical math course takes you from basic addition through algebra and trig. You'll apply mathematical analysis with confidence and ease, in situations that used to leave you helpless. You'll be in a power position, whether tackling cash register errors or major financial deals. This self-paced course requires no textbook or instructor.