7.7 Radio interference. Osram HQI-E 150 W/NDL CL
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If an ENEC mark is issued for a product by a certification body, then the European certifying bodies participating in the ENEC agreement treat this product as if they had tested and certified it themselves. Further testing and certification by one of these bodies is no longer necessary.
7.9 Optical design of reflectors
7.9.1 Condensate in the lamp
The ENEC mark can be obtained for luminaires for which a European standard exists. Luminaire accessories such as ballasts, ignition units, lamp sockets and capacitors can also be issued an ENEC mark if they satisfy the corresponding EN standard.
While the mercury in metal halide lamps evaporates completely when operated at full power, the metal halides are in saturated state. There is therefore always a surplus of condensed metal halides at the “cold spot” in the arc tube.
7.7 Radio interference
Burning position
45° angle
Selected luminaires must comply with the international requirements such as CISPR 15 and CISPR-22 A or B, and in practice, radio interference is low enough so that no negative effects are expected on the environment.
Condensate
Horizontal burning position
Even though ignition pulses from an ignition unit without cut-out can cause radio interference if with a defective lamp, there are no regulations for this case . The interferences can be extensive. One solution is swift replacement of the defective lamp or use of ignition units with a cut-out feature. These detect the defect or the absence of the lamp and switch off the ignition unit after a limited time period of futile ignition attempts.
The unit has to be disconnected from the grid power supply to reset the timer.
Figure 38: Example for condensate precipitation in the lamp
The balance between condensed and evaporated part of metal halides depends on the temperature of the arc tube wall. The coldest spot of the tube where the metal halides have condensed is usually at the bottom of the tube.
7.8 RoHS conformity
7.9.2 Projection of the condensate
All products brought onto the market in Member States of the European Union by OSRAM since 1 July 2006 comply with the requirements of the EC directive
2002/95/EC “on the restriction of the use of certain hazardous substances in electrical and electronic equipment” (RoHS).
As a fundamental rule, our products contain no cadmium, hexavalent chromium, polybrominated biphenyls
(PBB), polybrominated diphenylether (PBDE) or lead, and fulfill the requirements of the directive for the use of mercury.
The light radiated from the plasma projects the condensate of the lamp so that the reflector needs to mix the emitted light to ensure homogenous radiation. In particular when the burner is horizontal, the radiation components from the upper half of the burner and the lower half of the burner have to overlap and be mixed during projection. If the reflector cannot ensure this, the condensate of the lamp is projected and appears on a white wall as a yellow mark.
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