OSRAM QUICKTRONIC-M ECG for circular FL 16 mm - Manual (Page 32)

31
Harmonic
number Proportion in % of the mains current of the
fundamental wave (50 Hz)
2 2
3
30 x power factor( λ)
5 10
7 7
9 5
11 < n < 39 3
The specified values apply to Class C ECGs.
OSRAM QUICKTRONIC
®
control gear typically exhibit values well below
the threshold values.
All QUICKTRONIC
® units for operation of T5 FH ® ...HE- and T5 FQ ® ...HO
fluorescent lamps have a total harmonic distortion (THD) of less than 10%.
3.2.2 Radio interference
suppression
Compliance with the limit values for radio interference suppression is also a
requirement for the VDE EMC approval.
The ECGs are measured in a reference luminaire.
However, the interference level depends not only on the ECG but also on
the arrangement of the lamp and ECG, the luminaire design and in
particular the wiring. To obtain approval, compliance with the limit values
has to be checked for each luminaire (by the VDE for example).
This is discussed in more detail below.
3.2.2.1 Causes of Radio
Interference
Radio interference refers to both the radiated and the mains-borne
influences of an electrical load on other units connected to the same mains
supply and/or in the immediate vicinity. See also Section 4.8.
To ensure that the various electrical loads can operate simultaneously and
trouble free, each unit must not exceed certain radio interference values.
A distinction is made here between mains-borne disturbances on the power
supply side and atmospheric disturbances due to electromagnetic fields in
the vicinity of the luminaires.
3.2.2.2 Conducted
Interferences acc. to
EN 55015
These disturbances are caused by non-linear components and the high
frequency operation.