OSRAM DULUX F - Manual (Page 74)

Economical long-life light sources with plug-in bases
Compact Fluorescent Lamps OSRAM DULUX ®
Technical Guide
72
4.8.1 Maximum temperatures for OSRAM DULUX ® lamps
The following table shows the permitted maximum temperatures on OSRAM DULUX ® lamps.
Exceeding one or more of the maximum values specified here will lead to:
a noticeable reduction in lamp life
and/or damage to the CCG or ECG
and/or damage to the lamp base and the luminaire holder.
In the case of OSRAM DULUX ® S, D, T (without amalgam), L and F the limit value of 100 ºC at
measuring point 3 (cold spot) should not be exceeded. Exceeding this limit value may cause the
lamp to fail. At cold spot temperatures above the optimum (see table 4.8) there are changes in the
electrical and photometric data of the lamps (the luminous flux is no longer at 100 %).
In case of CFL SQUARE ® lamps, the cold spot is located inside the cap, i.e. special prepared lamps
are needed.
In case of CONSTANT lamps (with amalgam) mercury vapour pressure inside the lamp is controlled
by the amalgam temperature, which needs to be measured inside the lamp cap (special prepared
lamps are needed).
The limit value at measuring point 1 is 140ºC for OSRAM DULUX ® lamps with and without amalgam.
This maximum value was defined as part of the IEC standard for safety reasons. Exceeding this
value leads to softening of the plastic base and discolouration of the base material.
Measuring point
limit values 0
As per EN 60901
3
OSRAM DULUX ® 2-pin (CCG operation) 90°C 100°C
OSRAM DULUX ® 4-pin (ECG operation) – 100°C
OSRAM DULUX ® CONSTANT 2-pin (CCG operation) 90°C
OSRAM DULUX ® CONSTANT 4-pin (ECG operation) – –
OSRAM CFL SQUARE ® (CCG operation) - 100°C
OSRAM CFL SQUARE ® (ECG operation) - 100°C
For the limit values at measuring point 1, 1* for OSRAM DULUX ® lamps with and without amalgam
please refer to the measuring descriptions and tables below.
Measurement point 1 maximal lamp cap temperatures – locations and values as per IEC 61199
Measurement point 1, locations on the cap surface
Highest temperature
point on the cap
surface
Distance
X
Circumferencial line on the
side surface