OSRAM QUICKTRONIC-M ECG for circular FL 16 mm - Manual (Page 71)

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damage as a result and also prevents possible damage to the electronic
control gear.
General
Switchover from mains supply to emergency supply and vice versa must
take place in a break-before-make arrangement (See
Section 6.5). In this
discrete switching sequence there is a period – the length of which
depends on the design of the emergency monitoring system – in which
current does not flow or at least the supply voltage falls considerably below
its minimum recommended value. These switching times must comply with
the limits already mentioned in DIN 5035.
In accordance with DIN VDE 0108, the battery units must be designed for
rated operation of at least 3 hours. If the ECG is supplied with a rectified
AC voltage, this voltage should have as small a residual ripple as possible.
The AC voltage component must be less than 5 %.
If changeover units are used (emergency lighting fixtures with internal
switching) which supply the lamp directly from an emergency supply and
interrupt the system circuit between the ECG and the lamp, the following
must be observed:
• Changeover or disconnection of the lamps from the ECG to the
external unit must be on all terminals
• When switching back from the external supply to ECG operation,
the lamp(s) must first be connected at all terminals to the ECG
before the ECG is supplied with power again (for example by using
a time delay relay), otherwise the shutdown mechanism in the ECG
will operate.
• Many of these emergency lighting units available on the market do
not comply with the normal operating conditions for the lamps and
therefore damage them. In such cases, OSRAM cannot guarantee
the life of the lamps.
6.7 Portable Luminaires Portable ECG luminaires of protection class I (i.e. cable and plug with earth
terminals), require a fuse in both the L conductor and on the N conductors
of the mains supply. If VDE approval documents for ECGs state “for
permanently installed luminaires” then only the L side is fuse-protected.
The N side must be fused in the luminaire if the ECG is to be used also
suitable for portable luminaries.
The additional fuse on the N side must be designed for mains voltage,
suitable for the system input current and be of the “anti-surge” type.
All OSRAM QUICKTRONIC
®
ECG for T5/ ∅ 16 mm- fluorescent lamps are
equipped with two internal fused on the circuit board so that there is no
need for additional measures as described above.
The units are generally labelled with L and N and not with the symbol „
≈“ for
AC voltage.
6.8 Mix-up of FH ® - and
FQ ® -Fluorescent
Except QUICKTRONIC ® INTELLIGENT, QTi, all other ECGs for
T5/ ∅ 16 mm- fluorescent lamps can only operate the according FH ® …HE-
~ _
230-
240V