OSRAM HALOTRONIC-PROFESSIONAL HTL - Manual (Page 22)

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5.5 Heat dissipation The units generate little heat, but this heat still has to be dissipated. To
avoid overheating, make sure that the electronic transformer is not in-
stalled too close to a heat source (distance between lamp and trans-
former: 30 cm).
If the units are to be installed in luminaires, take suitable steps to
ensure there is good heat transfer between the HALOTRONIC
® unit
and the luminaire casing. Temperature tc at the test point must be
measured to ensure that it does not exceed its maximum permissible
value.
Low unit temperatures prolong the life of the unit (see also 3.7).
5.6 Environmental influences Electronic transformers are designed for indoor use.
There is no protection against water or humidity (IP 20).
5.7 Integration in luminaires If HALOTRONIC ® transformers, particularly the uncased units, are to
be installed in luminaires, the luminaire manufacturer is responsible for
complying with the necessary clearances and leakage paths and for
providing adequate protection against electrical shock, as defined in
EN 60598.
Since all HALOTRONIC ® models are protection class II devices, radio
interference values must be checked if the units are installed in metal-
lic protection class I luminaires. If necessary, external filters must be
fitted to bring these values within the permitted range.
5.8 Instruments for secondary An instrument for secondary voltage measurement must allow
voltage measurement measurement of the true rms value and have a bandwidth of at least
500 kHz (-3 dB). Any other instrument will give incorrect measure-
ments.
Reference Standard Pack