5 dimensioning of automatic circuit breakers – OSRAM DULUX F User Manual

Page 55

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Economical long-life light sources with plug-in bases

Compact Fluorescent Lamps OSRAM DULUX

®

Technical Guide

53

3.4 Operation with motion detectors and light sensors

It is basically possible to operate OSRAM DULUX

®

compact fluorescent lamps with pin bases in

conjunction with motion detectors and light sensors. Bear in mind that in these arrangements the
lamps operate only for short periods before switching off again, so the run-up time for light output
(the time the lamp takes to reach 100 % luminous flux) and the reduction in lamp life (old ECG tech-
nology) due to the high number of switching operations are factors that must be taken into account.
(see 2.4.4)

CCG-operated lamps should not be used in applications with extremely frequent on/off switching.
Instead, only compact fluorescent lamps for ECG operation should be used. The ECG should be
selected to ensure optimum lamp starting every time. Not all types of ECGs are suitable for a very
frequent switching, like it is the case by motion detectors. Only warm start ECGs are suitable. Even
here some models need a certain time out after switching off, to ensure a warm re-start of the lamp
with correct preheating by the next switch on.

It is necessary to refer to the technical data sheet of the ECG or request the information about the
suitability of the ECG for very frequent switching by the manufacturer.

Stand-by operating modes are ideal for such applications. In stand-by mode the light is dimmed
when it is not needed. This avoids unnecessary switching operations and saves energy. Because
the light is never fully switched off there is always a certain amount of light available for people to
find their way around. Full light is available instantly, with no pre-heating delay. Typical applications
for stand-by mode include all those with frequent on/off switching, such as stairwells, corridors and
underground garages. Particularly if the light is controlled with motion detectors or time switches.

3.5 Dimensioning of automatic circuit breakers

Information on the maximum permitted number of luminaires per automatic circuit breakers can be
found in the OSRAM Lighting Program.

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