DL2482 datasheet(43/82 Pages) OSRAM

43 / 82 page

Some of the models in the OSRAM DULUX® compact fluorescent lamp range are ideal

for use in outdoor lighting systems where temperatures during the cold season may be

0 ºC or below. Some models ignite quite readily even at these low temperatures, and

some have critical ignition limits. When selecting lamps and luminaires, therefore, the

temperature factor should also be considered.

The following table shows the low temperature ranges at which various models with

two-pin bases will still start reliably in conjunction with conventional control gear.

Operating conditions:

230 V/50 Hz supply voltage

Base-down position

With electronic control gear, the temperature range for reliable ignition is extended down-

wards, even for critical models. Irrespective of the ambient temperature, the lamp is

always supplied with the optimum ignition pulse. Repeated attempts to ignite the lamp at

low temperatures will damage the lamp. With ECGs this situation is avoided altogether.

The temperature range in which an ECG will reliably ignite a lamp depends an the ECG

itself. Consult the ECG manufacturer for more details. Depending on the particular lamp

and the particular ECG used, OSRAM QUICKTRONIC® units can ignite compact fluores-

cent lamps at temperatures as low as -15 ºC or -20 ºC.

Reliable ignition (inductive operation) of the lamps (at low temperatures according to the

above table) takes place at rated voltage within a period of 60 s. There is a chance that

these ignition times will increase as the lamps age (ageing of the starters) or if moisture

penetrates the luminaire. In capacitive operation a longer ignition time than with induc-

tive operation must be expected.

In the case of inductive operation with undervoltage, the temperature threshold for re-

liable ignition of the lamps is raised. This longer ignition time must be taken into account.

4. Operating characteristics

Economical long-life light sources with plug-in bases.

Compact Fluorescent Lamps OSRAM DULUX®

Technical Guide

4.2

Starting at low

temperatures

Lamp

Reliable ignition at temperatures down to:

5°C

0°C

-5°C

-10°C

-15°C -20°C

-25°C

-30°C

OSRAM DULUX® S

7 W, 9 W

5 W, 11 W

OSRAM DULUX® D

26W

13 W, 18 W

10W

OSRAM DULUX® T

13W,18W,

26 W

OSRAM DULUX® T IN 26 W

18 W

OSRAM DULUX® L

36 W

18 W, 24 W

OSRAM DULUX® L SP

18 W, 24 W

OSRAM DULUX® F

36 W 18 W, 24 W

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