How to calculate Lux Levels

Any of you really bright people have a way to calculate lux levels accurately - this is actually for a design we are doing and there are now officially 10 different levels worked out - so we need to find a way to get a general level.

 

How do I calculate lux - the formula?
Lux level = total light output (lumens) / area (square meters)
total light output = lumens per fixture * number of fixtures
Therefore
number of fixtures = (Lux level * area) / lumens per fixture
You need to look up the manufacturer data for your light fitting to get the lumens per fixture. For example a standard 100W incandescent bulb is around 1400 lumens.
Example:
Desired lux level = 175, Room size = 16 m2
Fixtures = 175 * 16 / 1400 = 2
So you'd need 2 100W incandescent light fittings.

Google.

 

Yea we googled and got a few answers but now we are trying to see if there is a standard for SA Building regulations, since they are needed for the new building plan submissions - for the green factor

 

Sorry, wouldn't be able to help you there. Maybe @Zoom can shed some light on the matter. Lol

 

Sorry... I'm clueless!

 

Its ok guys we got it sorted

 

@Wyvren
How did you "get it sorted"?

Would be Interesting to know ...

 

5 electrical engineers 3 architects and 1 council idiot. . . . hashed it out - I'm not part of those discussions

 

Sounds like the start of a really good joke...

 

Bwahahahaha Ash, yea we wont go there All I know is the others didnt slap the guy from the council