GE PSFA Ficha de datos descargar pdf (Pagina 9)

Outdoor sports lighting is a specialized form of

floodlighting. Pole locations, mounting heights, and

luminaire aiming are selected to light the ball in play.

There is also a need to minimize fixture brightness

or glare in the eyes of the players and spectators.

Selected areas such as the infield in baseball may

be highlighted to insure sufficient light for the batter

and the faster play in the infield. Pages 12 through

21 contain the lighting recommendations for each

sport. Specific design considerations are given with

each sports lighting consideration.

Luminaire Selections

Luminaires are available in a variety of beam

spreads or NEMA beam types and construction

types. In the standard layout sections, the proper

NEMA beam spreads have been selected for each

sports lighting system to insure the highest

lighting efficiency consistent with uniform lighting.

Luminaires from different manufacturers do not

have the same performance characteristics even

though they may have the same NEMA beam type.

This book is based on GE luminaire characteristics

and should not be used as a general guide for other

manufacturers’ products.

Lamp Selection

The basic lamp type used for sports lighting is high

intensity discharge (HID). These HID systems

primarily use 400W, 1000W and 1500W metal halide

or 400W and 1000W high pressure sodium lamps.

While mercury lamps have been used extensively in

the past for sports lighting, they are no longer

recommended because of their lower efficiency. The

life of HID lamps varies from 1,500 to 24,000 hours.

The most common lamps used today are the 1000

and 1500 watt metal halide lamps. The 1500 watt

lamp has the best combination of lamp efficiency

(110+ LPW) and life (3,000 hours) for use in most

sports lighting venues. Where longer lamp life or

lower mounting heights are desired, 1000 watt metal

halide lamps are the standard. The disadvantage

is that due to lower lumen output of the lamp

approximately 50% more fixtures are required to

achieve the same lighting levels as compared

to 1500 watt lamps. This increases the cost of

installation both by increased quantities and added

structural requirements for poles and foundations.

When it comes to lighting,

GE knows the game. After

all, the origins of sports

lighting are the very origins

of our company. In 1883

we lit the first night baseball

game with a handful of

open-face arc lights strung

across a minor-league field.

Thomas Edison, the famed

inventor of the incandescent

light bulb, was one of our

company’s founders. And

we’re responsible for many

firsts in the field ever since.

www.GELightingSystems.com • 877-798-6702 9

Sports Lighting

System Selection

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