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  1. #1
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    May 2013
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    Mumbai, India
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    Confused What is illumination level

    What is illumination level

    How to measure illumination level
    What is the thum rule or standard for per sq. ft in commerical office as per illumination level
    - what are the guidlines for Guidelines for ensuring standard illumination level
    - Area Vs Lamp Wattage required calculation??

  2. #2
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    Nov 2006
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    These are questions best asked in an architectural design forum.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

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  3. #3
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    Feb 2007
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    Helena, Montana
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    And they vary greatly based on the usage of an area....
    Don't worry zombies are looking for brains, you're safe...

  4. #4
    Join Date
    May 2013
    Location
    STP, MN
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    500 lumens/sq. m for normal office work/computer work

    you can calculate illumination with this:

    I = (L x Ll x Cu x LLF) / Al

    where

    I = illumination (lumen/sq. m)

    L = number of lamps

    Ll = lumens per lamp (lumen)

    Cu = coefficient of utilation

    LLF = light loss factor

    Al = area per lamp (sq. m)

  5. #5
    Join Date
    Jun 2013
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    Quote Originally Posted by jayshreerv View Post
    What is illumination level

    How to measure illumination level
    What is the thum rule or standard for per sq. ft in commerical office as per illumination level
    - what are the guidlines for Guidelines for ensuring standard illumination level
    - Area Vs Lamp Wattage required calculation??

    NEC gives watts per square foot for various types of buildings . But that is mostly for service load calculations , if I remember correctly . But would give you a starting place ?

    God bless
    Wyr

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