Flood Lighting

Flood Lighting

Q. State any four specific requirements of flood lighting.

Meaning of Flood Lighting

• Its meaning is, copious artificial light projected many directions, eliminating all the shadows on the surface illuminated.

Applications of Flood Lighting

• Flood lighting is used to illuminate various surfaces of various categories like

   (a) Aestetic

   (b) Industrial and commercial

   (c) advertising.

Coverage of these

(a) Aestetic flood lighting

For enhancing beauty of building at night hours such as

1. Public places
2. Ancient buildings
3. Monuments
4. Religious places, buildings, churches, temples
5. Festival occasions etc.
6. Gardens
7. Forts

(b) Industrial and commercial flood lighting

1. illuminating railway yards
2. Sports stadium
3. Big car park
4. Construction sites
5. Queries
6. Industrial campus
7. Commercial important buildings

(c) Advertising

1. To illuminate advertising boards
2. To illuminates show cases
3. Attention seeking item displays
4. Commercial hoarding
5. Publicity posters
6. Exhibition

Types of Luminaires Required for Flood Lighting

• 500 to 1000 watt lamps with silver or steel reflectors, used in projectors with ventilation, provision, the front of the projector is usually of clear glass, often bowed outwards to protect it from heat of the lamp.
• Use of diffusing glass is made when a diffuse beam is required. The projects are so located that they are not visible by persons passing thereby. In some cases the projectors are housed ornamental stand standards.

Flood Light Projector

• A particular type of reflector and its housing used for concentrating the light into a “narrow-beam” is known as “flood light projector”

Reflecting Surfaces

• Material shape of the reflecting surface of projector is most important
• Reflecting surface is made up of either of the following

    (i) Silver glass

    (ii) Chromium plate

    (iii) Stainless steel

• For permanent installation use of cast-metal cases is made to achieve robustness and protection against whether, rain, sunlight conditions.
• For temporary installation use of sheet metal casing is made.