Sharp QT-80W Instruction Manual download pdf (Page 52)

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

...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!

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Sharp QT-80W Instruction Manual Page 52

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