Entertainment Electrics on DVD is a series of videos from the same 3-day ETCP Recognized class that is presented live by ETCP Recognized Trainer Richard Cadena in venues all over the world. Each of the videos is a 10- to 15-minute presentation and covers a single topic that is listed in the content outline of the ETCP Entertainment Electrician Certification Exam. Part 1 covers DC electricity, terminology, basic circuits, Ohm's law, DC power, AC electricity, impedance, AC power, phase angles, power factor, 3-phase power, harmonics, and more. Part 2 covers electrical safety and practical aspects of power distribution for the live event industry, including imminent danger, human reaction to electrical current, lockout/tagout, arc flash, arc blast, boundaries of protection, categories of meters, codes and regulations, portable power generators, transformers, HMTs, grounding, enclosure ratings, over current protection, GFCIs, and more. Part 3 covers DMX512-A, RDM, sACN, Ethernet, wireless (WiFi and wireless DMX), fiber optics, and more. Each video is followed by a short quiz to test your knowledge and retention. Additional resources are also offered, such as video, reading material, and web pages. To sample the course, visit

There is now an online version of this class available. IATSE Locals can receive a discount when they purchase a multi-user license and books for the online version of this course.  Please contact Richard at for more information.  Additional information about Richard's trainings can be found here.