__________________________________________________________________________________________________________________
European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH [email protected] Tel: +44 (0)208 743 8880
www.e2s.com Fax: +44 (0)208 740 4200
Document No. D211-00-671-IS Issue: A 29-11-19 Sheet 7 of 11
13)
Light output for Fire alarm use
In order to meet the requirements for UL 1971, (D2xC2LD3DC024 only when used without plastic lens cover or wire guard), the
installation must be carried out to the correct NFPA standards and guidelines.
13.1
Horizontal Light Output Dispersion for wall mounting
– public mode
0°
15°
15°
30°
45°
60°
75°
90°
90°
30°
45°
60°
75°
Fig. 12
– Horizontal dispersion angles for wall mounting
Table 3 - Horizontal Light Output Dispersion for Wall Mounting
Viewing Angle
% Of Rating
Intensity (cd)
at 1Hz flash
rate
Intensity (cd)
at 1.33Hz flash
rate
Intensity (cd)
at 1.5Hz flash
rate
Intensity (cd)
at 2Hz flash
rate
0º
100
77.4
74.5
74.6
79.3
5º
90
69.6
67.0
67.2
71.4
10º
90
69.6
67.0
67.2
71.4
15º
90
69.6
67.0
67.2
71.4
20º
90
69.6
67.0
67.2
71.4
25º
90
69.6
67.0
67.2
71.4
30º
75
58.0
55.8
56.0
59.5
35º
75
58.0
55.8
56.0
59.5
40º
75
58.0
55.8
56.0
59.5
45º
75
58.0
55.8
56.0
59.5
50º
55
42.6
41.0
41.0
43.6
55º
45
34.8
33.5
33.6
35.7
60º
40
30.9
29.8
29.9
31.7
65º
35
27.1
26.1
26.1
27.8
70º
35
27.1
26.1
26.1
27.8
75º
30
23.2
22.3
22.4
23.8
80º
30
23.2
22.3
22.4
23.8
85º
25
19.3
18.6
18.7
19.8
90º
25
19.3
18.6
18.7
19.8
45º Compound
24
18.6
17.9
17.9
19.0
