D7BCT datasheet(38/54 Pages) OSRAM

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OSRAM DULUX® EL – electronic energy saving lamps

Economical alternatives to ordinary light bulbs

Technical Guide

3.5.2.2 OSRAM DULUX® EL

LONGLIFE

FACILITY

OSRAM DULUX® EL FACILITY 10 W and 14 W E27/ B22d / E14 can be operated

indoors on AC voltage and also on DC voltage in the 176 V DC to 310 V DC range

and on battery powered 220/240 V systems.

At a lower threshold voltage of 176 V DC the OSRAM DULUX® EL FACILITY will start

reliably at temperatures from -30°C to 50°C. They can handle overvoltages in the DC

system up to 310 V DC. The lamps reach their rated values in DC operation at around

280 V DC. For other DC voltage values the differences are typically as follows:

Electrical and photometric data in DC operation

Emergency lighting:

With a starting time of less than 0.5 s, OSRAM DULUX® EL FACILITY lamps are

suitable in accordance with VDE 0108 for use in emergency lighting systems in a DC

voltage range from 176 V DC to 310 V DC. This applies to both maintained and non-

maintained emergency lighting.

With due regard to the properties of the lamps, the requirements for luminous flux and

illuminance in areas such as corridors and stairwells must be met by the system in

which lighting designers use OSRAM DULUX® EL FACILITY lamps.

Supply voltage:

Power

Luminous flux1)

System or

input1)

battery-current2)

310 V DC

110 %

48 %

280 V DC

100 %

49 %

220 V DC

80 %

78 %

50 %

180 V DC

65 %

60 %

50 %

1) As a percentage of the rated value

2) As a percentage of the rms value for ac voltage

3. Lamp data and lamp properties

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