Isolation Transformers Thwart Killer Street Lights

March 30, 2012
City street lamp poles can be dangerous if touched by humans. Enter the isolation transformer to rectify this situation.

Ever lean against a city street lamp and get blown away by high voltage? Over course not because you are there reading this. Ever get a nasty shock from the same activity? In either case probably not, but that doesn’t mean it’s not possible. Stories abound!

Stray voltages in metal pole streetlights are not completely uncommon and can reach levels high enough to cause serious injury and/or death when touched by humans or animals.  These stray voltages can result from weather damage, general wear and tear, aging, and vandalism. Many older cities, sports complexes, parking lots, marinas, and other installations are experiencing stray voltages in metal pole streetlights.  Enter the isolation transformer, a fairly non-complex solution to what could be extremely costly situations.

Bridgeport Magnetics Group offers its Streetlight Isolation transformers in three standard power ratings: 1200 VA, 2200 VA, and 8000 VA. Custom designs are possible with other power ratings. Standard input and output voltages are 120V/120V and, similarly, other custom voltages are available as well.

Each transformer includes an internal auto-resettable thermal switch and is encased in black epoxy in a 100% waterproof, red resin container with carrying handle. The container secures via a single bolt through a center hole.  A 1200-VA component measures 7.75-inches (196 mm) in diameter and 3.75-inches (96 mm) in height and weighs 16 lbs (7.2 kg).

For price and delivery information, call BRIDGEPORT MAGNETICS GROUP INC., Shelton, CT. at (203) 954-0050 or contact them via email at [email protected]. For more technical data, visit the company’s website.

About the Author

Mat Dirjish Blog | Power/Components/Interconnects/Packaging & Optoelectronics Editor

Mat Dirjish is the Power/Components/Interconnects/Packaging & Optoelectronics Editor. Prior to joining Electronic Design he was a Technology Editor for EE Product New and before that he covered test & measurement and computer boards, embedded systems & software as an Associate Editor at Electronic Products magazine. Before entering the world of tech editing, Mat spent many years in the high-end audio and musical electronics field doing design, modification, service, and custom installation work.

Sponsored Recommendations

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!