Twin-Spot Spacing Data
| Mounting Height | Spacing to Wall | Between Units |
2
x 21 Watt Tungsten Versions |
||
2.5
Metres |
3m |
9m |
4.0
Metres |
4m |
11m |
6.0
Metres |
3m |
12m |
8.0
Metres |
3m |
10m |
2
x 20 Watt Tungsten Halogen Versions |
||
2.5
Metres |
5m |
15m |
4.0
Metres |
6m |
16m |
6.0
Metres |
5m |
16m |
8.0
Metres |
4m |
15m |
2
x 55 Watt Tungsten Halogen Versions |
||
8.0
Metres |
8m |
20m |
10.0
Metres |
8m |
20m |
Notes:
These tables are based on the following factors: Light output ratios measured
to BS5225 and lamp lumen outputs are from GE Lighting warm white lamps. |
| Requirements from BS5266/EN1838 |
| Permanently Unobstructed Escape Routes |
Require
minimum of 0.2 lux along the centre line of the escape route, where there
is a possibility of an obstruction occurring along the route then 1 lux minimum
is required. |
| Undefined Open Areas |
The
minimum level of illumination required throughout the area is 0.5 lux excluding
a half Metre border around the edge of the room which can be at a lower level. |
| Twin-Spot |
| All floodlighting units are fitted with two swivel mounted projectors each with a 30° beam spread. |
| To prevent glare, the luminaire should be mounted 30° above the line of sight. |
| All spacing are calculated to achieve 1 lux. |
luminaire
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