Tag Archives: electrical power

Common “pipe” dimensions for audio/lights

Quick facts around common pipe and thread dimensions for lights and sound: Microphone stand threads:  5/8″ – 27 thread Camera tripod sockets: 1/4″ – 20 Theater batten/pipe:  1.5″  Schedule 40 Black Iron pipe Lighting C-Clamp yoke bolt: 1/2″ – 13 … Continue reading

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Vintage Lighting Console

Wow, this was state-of-the-art back in the 1930’s.

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Power Factor – VA vs Watts

. When considering power consumption for audio or lighting, you need to think about more than just WATTS.  You would be better served to think about VA (or kVA).  Watts are commonly thought of the multiplication of voltage x current.  … Continue reading

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Safety Extra Low Voltage (SELV)

In various theatre applications, low voltage is best for portable and battery powered lights.  When working with various safety organizations who may inspect your on-stage wiring, it’s good to keep within SELV (Safety Extra Low Voltage) guidelines. . . As … Continue reading

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Human: How many watts of power?

= . One of our staff asked today “how many watts of power does a human use in a day”? Here’s the answer from Physics Forum: 96.85W . Details on the computation are at: http://www.physicsforums.com/archive/index.php/t-114431.html .

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Wire Guage Ampacity

Here’s a simple table of ampacity ratings for common wire gauges.  This is for lengths of twenty-five feet or less, typical extension cord construction. 10 AWG  :  30 Amps 12 AWG  :  20 Amps 14 AWG  :  15 Amps 16 … Continue reading

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