Instruction manual

51
3.15 RCDs / Fault Currents
In the case of ECGs with protective earth (PE) connections, both the high
short duration starting current and the small continuous current through the
interference suppression capacitors in the ECG can trip the residual current
detector (RCD).
The following solutions may be considered:
• Devide the luminaires into three phases and use three-phase RCDs
• Use surge-current-resistant, short-delay
• Use 30 mA RCDs (if possible)
In Section
7.3 are the values for QUICKTRONIC
®
ECG for operation of
T5/∅ 16 mm- fluorescent lamps FH
®
...HE and FQ
®
...HO.
3.16 Leakage Current
In protection class I luminaires, the internal HF filter in an ECG with PE
conductor connection produces a 50 Hz leakage current through the earth
conductor whose value depends on the product type.
This 50 Hz leakage current limits the number of ECGs that can be operated
on an RCD.
For all QUICKTRONIC
®
units to operate T5/∅ 16 mm- fluorescent lamps
FH
®
...HE and FQ
®
...HO the following applies:
Leakage current < 0.5 mA
3.17 ECGs in Three-Phase
Operation
When using electronic control gear in a three-phase operation the following
points have to be considered:
1. Check whether the mains voltage is within the application range of
the ECG (DC/AC range from 198 V to 254 V).
2. The mains connection on the installation side may only be made to
the luminaire terminal. For luminaries or luminaire groups in 3-
phase circuits.
3. Make absolutely sure that the neutral conductor is correctly
connected to all the ECG-luminaires and that it is making proper
contact.
4. Cables may only be disconnected or connected when no voltage is
present.
5. For 3x230/240 V supply networks in triangular circuit arrangements,
protection by way of common disconnection of the phase conductor
is necessary.
Important:
• In new installations the load must not be connected when the
insulation resistance is measured with 500 V DC, since according to
VDE 0100 T600 Section 9 the test voltage is also applied between
the neutral conductor (N) and all three external lines (L1, L2, L3. In
existing installations it is sufficient to carry out an insulation test
between the external lines (L1, L2, L3) and the protective earth
without disconnecting the loads. The neutral conductor (N) and the
protective earth (PE) may not be electrically connected in any way
when this is done. For this insulation measurement (500 V DC to
earth) the neutral conductor disconnection terminal may only be
opened with the mains voltage switched off!