DL2482 datasheet(52/82 Pages) OSRAM

52 / 82 page

Measuring

Description

Max.temp.

point

This point is located at the bottom of the base and is determined by

90°C1)

the thermal load capacity of the glow starter installed in the bases of

according to

two-pin lamps for conventional operation. It is therefore relevant only

EN 60901

for these lamps (OSRAM DULUX® S, D, T and T IN).

The hottest point on the surface of the base on a line which on G23,

140°C2)

IEC

2G7 bases (OSRAM DULUX® S and OSRAM DULUX® S/E) is 8 mm

according to

measuring

and on G24, GX24, 2G10 and 2G11 bases (OSRAM DULUX® D, D/E,

EN 61199

point

T, T/E, L and F) 12 mm from the reference plane in the direction of the

Information

glass bulb. The limit value for this measuring point has been defined

for luminaire

in the relevant standard for safety reasons. (If this maximum

design as

temperature is exceeded the plastic base may start to soften

per IEC.

(applies to end of life).)

Measuring point 2 at the glass tube near the filament is the hottest

max. 190 °C

Electrode

point on the lamp. Measurements are taken 5 mm from the edge of

measuring

the base.

point

Applies only to OSRAM DULUX® 2-pin and OSRAM DULUX® 4-pin

In CCG and

Cold spot

lamps without amalgam. Corresponds to the cold spot for base-up

ECG operation

measuring

burning position and a free-burning lamp. In certain circumstances and

max. 100 °C

point

with other burning positions in the luminaire, however, the cold spot

(approx. 60 %

may be somewhere other than measuring point 3.

luminous flux)

Exceeding the maximum permitted temperature has a considerable

optimum 40°–

impact on the electrical and photometric data of the lamp and will

50°C (= 100%

cause the lamp to fail.

luminous flux)

Amalgam

Amalgam lamps: The measuring point for amalgam lamps is

85°–115°C

measuring

on the lamp glass of the amalgam reservoir inside the lamp base.

(= 90 %

point

This temperature can be measured only with specially prepared lamps. luminous flux)

Measuring conditions: 25°C ambient temperature, draught free air

Reference ballast

Supply voltage UV = 1.06 x Urated

Measuring conditions: Short-circuited starter

25°C ambient temperature, draught free air

Supply voltage UV = 1.1 x Urated

Reference ballast

DULUX® S

DULUX® S/E

DULUX® D

DULUX® T

DULUX® L

DULUX® F

DULUX® D/E

DULUX® T/E

Temperature measuring points:

4. Operating characteristics

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

Compact Fluorescent Lamps OSRAM DULUX®

Technical Guide

4.8

Lamp

temperatures and

limiting values

Temperature measuring points are defined for OSRAM DULUX® lamps. The temperatures

at these points must be within the thresholds for the safe and reliable operation of the lamps.

The following limit temperatures must not be exceeded at these points even under

adverse installation conditions (in the luminaire, high room temperatures) and at high

supply voltages:

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