LIGHTING BUILDING SERVICE PPT

LIGHTING BUILDING SERVICE PPT

PPT DOWNLOAD LINK ;

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LIGHTING BUILDING SERVICE PPT
LIGHTING BUILDING SERVICE 

  Lighting –introduction

Ø Lighting or illumination is the deliberate use of light to achieve practical or aesthetic effects
Ø The provision of ample light in a building is of primary significance as it serves two purpose, namely, for illumination and for granting hygienic conditions.
Ø Lighting should be planned in a manner as to create mood or atmosphere and should complete.

Aims of good lighting

Ø To promote work and other activities carried out within the building.
Ø To promote the safety of the people using the  building .
Ø To create a pleasing environment and a sense of wee-being for the occupants. 

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LIGHTING BUILDING SERVICE PPT
LIGHTING BUILDING SERVICE PPT
LIGHTING BUILDING SERVICE PPT
LIGHTING BUILDING SERVICE PPT
LIGHTING BUILDING SERVICE PPT
LIGHTING BUILDING SERVICE PPT

NATURAL LIGHT

Ø The primary source of lighting for day lighting  is the sun.
Ø The light received by the earth  from the sun consist of two parts, namely , direct solar illuminance   and sky illuminance .
Ø For the purpose of day lighting design ,direct solar illuminance shall not be considered and only sky illuminance shall be taken as contributing  to illuminance of the building  interiors during the day.

Depends on sky illuminance

      Altitude of the sun
      Altitude of the locality
      The day of the year
      Time of the day

DAY LIGHT FACTOR

Ø Day light factor is the sum of all the daylight reaching on an indoor reference point  from the  following sources.
Ø The direct sky visible from the point.
Ø External surface reflecting light directly.
Ø Internal surface reflecting light to the point.

DAY LIGHT COMPONENTS

Ø SKY  COMPONENT.
Ø EXTERNAL REFLECTED COMPONENTS.
Ø INTERNAL REFLECTED COMPONENT.

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NATURAL LIGHTING, LIGHTING BUILDING SERVICE
LIGHTING BUILDING SERVICE
LIGHTING BUILDING SERVICE
LIGHTING BUILDING SERVICE
DAY LIGHT FACTOR, LIGHTING BUILDING SERVICE
LIGHTING BUILDING SERVICE
LIGHTING BUILDING SERVICE
LIGHTING BUILDING SERVICE

ARTIFICAL   LIGHTING

Ø Where the recommended luminance levels have to be obtained artificial lighting only.
Ø To supplement day lighting when the level of illumination  falls below the recommended value.
Ø Where visual task may demand a higher level of illumination.

LUMEN METHOD STEPS

Ø Determination of the  illumination level
Ø Selection of the light source and luminaries
Ø Utilization factor or coefficient of utilization
Arrangement of the luminaires 

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LIGHTING BUILDING SERVICE
LIGHTING BUILDING SERVICE
LIGHTING BUILDING SERVICE
LIGHTING BUILDING SERVICE
LIGHTING BUILDING SERVICE
LIGHTING BUILDING SERVICE
LIGHTING BUILDING SERVICE
LIGHTING BUILDING SERVICE
PPT DOWNLOAD LINK

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