Technical Information

Sunray HMI and Tungsten LightsThese articles are based on information gathered after 40 years of experience in the entertainment industry and information taken from the National Electrical Code and other references.

We have made every effort to insure the information is clear and accurate and written in terms so that the text is easy to understand and can be used as a quick reference by the technician.

This information is not meant to be a substitute for the National Electrical Code or other recognized standards; Sunray shall not be held responsible for any inadvertent errors in the content of this material, or for the interpretation, or application of this information.

National Electrical Code
Motion pictures, television studio and similar locations.

City of Los Angeles
Basic electrical safety for motion picture and television off-studio productions.

Portable Power Distribution System
Five basic parts of a circuit.

Controlling Electrical Hazards
What are electrical hazards?  How to control them.

Looping a Circuit and Line Loss
How to loop a circuit.  What is line loss?

Working with Lighting Systems and Electrical Equipment
Motion picture industry-wide labor-management safety committee guidelines.