PROJECT:

DATE:

LIGHTING CALCULATION FOR:

ROOM DATA PHOTOMETRIC DATA

ROOM LENGTH m= LUMENS/LAMP=

ROOM WIDTH m= UF SINGLES=

ROOM HEIGHT m= UF TWINS=

SUSPENSION m= UF TRIPLES=

WORKPLANE HT m= UF QUADS=

ROOM INDEX= 0 MAINTENANCE FACTOR=

TARGET LUX= SPACE/HT RATIO (SHR)=

% REFLECTANCES 70/50/20 RESPECTIVELY

FOR CEILING, WALLS, AND FLOOR.

RESULTS:

0 SINGLES ACHIEVES 0 LUX

0 SINGLES ACHIEVES 0 LUX

OR

0 TWINS ACHIEVES 0 LUX

0 TWINS ACHIEVES 0 LUX

OR

0 TRIPLES ACHIEVES 0 LUX

0 TRIPLES ACHIEVES 0 LUX

OR

0 QUADS ACHIEVES 0 LUX

0 QUADS ACHIEVES 0 LUX

GUIDELINE: MINIMUM NUMBER BASED ON SHR = 0

GUIDELINE: NORMAL SPACING UP TO (m) = 0

SELECTION:

THE NUMBER OF SELECTED LUMINAIRES =

NUMBER OF LAMPS IN EACH =

RESULTING AVERAGE LUX = 0

TYPE:

UF'S GIVEN HERE ARE TYPICAL AVERAGE VALUES FOR THE TYPE OF LUMINAIRE DESCRIBED.

STANDARD REFLECTANCES OF 0.7, 0.5, 0.2 ARE ASSUMED FOR C, W, AND F RESPECTIVELY.

(USE ONLY AS A FIRST APPROXIMATION WHEN MANUFACTURERS DATA IS NOT READILY AVAILABLE)

TYPICAL APPROXIMATE UTILISATION FACTORS

TYPICAL (the same UF may be used for all lengths of surface luminaires)

LUMINAIRE SHR ROOM

0.75 1 1.25 1.5

Single lamp surface batten 1.75 0.42 0.51 0.57 0.61

Twin lamp surface batten 1.75 0.41 0.5 0.56 0.6

Single lamp surf.opal dffsr 1.75 0.31 0.39 0.43 0.46

Twin lamp surf.opal dffsr 1.75 0.34 0.41 0.46 0.5

Twin lamp 600sq flush 1.5 0.36 0.4 0.43 0.45

Three lamp 600sq flush 1.5 0.33 0.37 0.4 0.42

LAMP TYPE/LENGTH INITIAL LUMENS

T8 450mm 1050

T8 600mm 1290

T8 900mm 2500

T8 1200mm 3450

T8 1500mm 5400

T8 1800mm 6550

2D16w 1050

2D28w 2050

2D38w 2850

UF'S GIVEN HERE ARE TYPICAL AVERAGE VALUES FOR THE TYPE OF LUMINAIRE DESCRIBED.

STANDARD REFLECTANCES OF 0.7, 0.5, 0.2 ARE ASSUMED FOR C, W, AND F RESPECTIVELY.

(USE ONLY AS A FIRST APPROXIMATION WHEN MANUFACTURERS DATA IS NOT READILY AVAILABLE)

TYPICAL APPROXIMATE UTILISATION FACTORS

(the same UF may be used for all lengths of surface luminaires)

INDEX

2 2.5 3 4

0.68 0.73 0.76 0.81

0.67 0.71 0.75 0.79

0.51 0.55 0.57 0.61

0.55 0.58 0.61 0.64

0.48 0.5 0.51 0.53

0.44 0.46 0.47 0.49