Richard Cadena

author, ETCP RT/CEE, lighting consultant

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    Does Size Matter for Grounding Conductor?

    Dear Swami Candela, It occurs to me that copper is heavy, and I heard that it's allowed to reduce the size of the grounding conductor compared to the ungrounded conductors in a feeder cable set. Is this true? If it's safe to carry a smaller grounding conductor then not only can it save money and weight, but it seems that it would also be more fuel efficient to transport. Signed, Weighed Down in St. Louis Dear Weighed, The truth is sometimes elusive and sometimes not. In the United States it is spelled out in Article 520.53(H)(2), which says "The equipment grounding conductor...shall be permitted to be reduced in size as permitted by 250.122," and Article 250.122 shows a chart with permissibl

    Welcome to the Future

    The future begins today. How do we know? Because in 1985, when the movie Back to the Future was released, Doc Brown set his time machine to the date October 21, 2015. Besides, look around you. Our technology has changed a lot in the last 30 years. We now carry more computing power in our pockets than NASA had when they landed on the moon. So, how do we use this advanced technology in the live event production industry? Two years after Doc Brown leaped from 1985 to 2015, LDI became the launching pad for new products being introduced to the industry. On Friday, the 28th year of LDI will begin, and you can be sure that the latest and greatest in entertainment technology will be on display. The

    Have You Seen My Leatherman?

    Leatherman, Leatherman, where did you go? This morning I held you and now you no-show, Did anyone borrow you? Does anyone know? If somebody stole you, to hell they will go. Leatherman, Leatherman, where are you now? I need you, I want you, I miss you, and how. I miss the feel of your stainless blade steel And your holder is as empty as I sadly now feel Somewhere on site, a Leatherman cries For its owner to find where it silently lies, Among the good people who work side-by-side, And hope they will never have to say their goodbyes To their Leatherman, Leatherman Oh where did you go? Come back next week for... Senorita, Senorita, have you seen my Makita?

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    Protect the Stage!

    Protect the Stage!

    Red Tagged!

    Red Tagged!

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    Preface to “Stage Lighting: The Technicians’ Guide, 2nd Edition” by Skip Mort

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    Does Size Matter for Grounding Conductor?

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    Welcome to the Future

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    The Mystery of the Missing Wireless Signal

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    Turning On to Voltage Drop

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    August 11-12, 2015

    Stage Electrics 2-Day Training New Orleans

    Stage Electrics 2-Day Training

    RZI Lighting - New Orleans

    August 11-12, 2015 9AM—5PM

    bit.ly/Electrics-NO2015

    October 5, 6, & 7, 2015

    Entertainment Electrics 3-Day Class

    Entertainment Electrics 3-Day Class

    Wilmington, DE

    October 5, 6, & 7, 2015

    9AM—5PM

    www.bit.ly/Electrics-DE2015

    December 16, 17, & 18, 2015

    Entertainment Electrics 3-Day Class

    Entertainment Electrics 3-Day Class 

    Burbank, CA

    December 16, 17, & 18, 2015

    9AM—5PM

    www.bit.ly/electrics-BUR2015

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    © 2018 Richard Cadena  | info@APTXL.com  |   Tel: 512-280-0384 |

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