OSRAM QUICKTRONIC-M ECG for circular FL 16 mm - Manual (Page 34)

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a) without reflector b) with a metal reflector
The resulting magnetic field strength in the near field and hence the effect
on the environment is reduced in b) by a current induced in a reflector. It is
important here for the surface of the reflector to have good electrical
conductivity. It is not necessary to earth it.
To shield the electric field, which is always radial around the lamp, it is
necessary for the reflector or its surface to be as conductive as possible
ant for the connection to earth or to protective earth to be of the lowest
possible resistance.
Based on these two requirements, the solution here is to have a reflector,
reflector and diffuser or louver with excellent conductivity connected at
lowest possible resistance to the ECG earth (PC I) or the PE conductor
connection of the luminaire.
3.2.2.5 Installation
Instructions for
avoiding Disturbance
The following diagrams show examples of correct and incorrect wiring.
1a)
Long-run luminaire with reflector
To avoid interference on the lamp cable, the mains cable shoud be routed
to the outside immediately at the luminaire terminal. He lamp cables should
be laid in accordance with the criteria specified in Section xx (wiring
instructions). The reflector is used here for shielding and should therefore
be made of metal and be attached permanently with a high quality plug
connector (must have low resistance) to the luminaire body which in turn is
connected to control gear earth.
1b) Bad
example
Mains and lamp cables that run in parallel over long distances. This leads
inevitably to interaction and therefore to higher energy in the radiated
Lamp
Line voltage
Hot wires