OSRAM QUICKTRONIC INTELLIGENT DIM CFL - Manual (Page 16)

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Notes:
• • Max. lamp cable length of the "hot end" (higher potential to
ground): T5, T8: 1 m/T4: 0.5 m
• • Excessively long lamp cables cause the following problems:
- Poor radio interference suppression
- Uncertain lamp detection (not in T8)
- Poor synchronization of 2-lamp OSRAM DALI/DIM ECGs
• Lay the lamp cables close together and close to the lamp
• Lamp cables must not be laid in metal pipes and must not be
shielded cables
• Guide the cables of the different lamp ends separately
• In the case of multi-lamp OSRAM DALI/DIM ECGs, the cables to
the respective lamp ends must be of the same length to prevent
differences in the brightness
• When dimming florescent lamps the maximum lamp voltage is
reached at the lowest dimmer setting (3 %-10 %) due to the nega-
tive current-voltage characteristic
Maximum line lengths between dimmable ECG
(QTi DALI/DIM) and lamps
Cold ends* Hot ends*
1-lamp 21, 22 1-lamp 26, 27
2-lamp 21, 22, 23 2-lamp 24, 25, 26, 27
T5 1.5 m 1.0 m
T8 1.5 m (2 m HF DIM) 1.0 m (1.5 m HF DIM)
DULUX D/E, T/E Every 0.5 m
Table 2: Maximum cable lengths between dimmable ECGs and
lamps
* "Hot ends" are the lamp cables that have the highest potential to the
switching ground or protective ground. The other "cold ends" of the
lamp cables have a lower potential to ground.
Note:
• Maximum capacitance of a filament cable pair to ground:
T5: 75 pF
T8/DL: 150 pF
• Maximum capacitance between "hot" and "cold":
T5: 15 pF
T8: 30 pF