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6.51
Operating instructions
Power supply
Suitable control gear is required to operate the lamps.
This may be electromagnetic ballasts (also called con-
ventional control gear (CCG) or chokes) or electronic
control gear (ECG). For chokes, the tap provided for
the available supply voltage (usually 230 V AC at
50 Hz) must be used. If a different supply voltage is
used, control gear with appropriate taps designed for
these voltages must be used.
Photometric and electrical data
All stated electrical and photometric data are specific
values after aging the lamps for 100 hours
and are valid
for operation on reference equipment (IEC 60923) under
laboratory conditions. For lamps that are only released
for operation on ECG, the values are valid for operation
on square wave electronic control gear (IEC 61167) un-
der laboratory conditions.
For HCI
®
lamps the specified values relate to the
horizontal burning position for TS-, TT-, and ET- types,
and to the base-up burning position for all other types,
unless otherwise indicated. For HQI
®
lamps the specified
values apply to the horizontal burning position for
T-types > 150 W and TS-types and for the base-up
burning position for T-types ≤ 150 W, E and TM-types,
unless indicated otherwise. NAV
®
lamps are all meas-
ured in the horizontal burning position, and HQ and HW
lamps in the base-up position. In other burning positions
there may be considerable differences in the measured
values, particularly the luminous flux, color temperature
and lamp life. With the exception of SOX, the luminous
flux is virtually unaffected by the ambient temperature
outside the fixture. At low ambient temperatures down
to around – 50 °C special igniters are needed.
All POWERBALL
®
HCI
®
-TS ..., POWERSTAR
®
HQI
®
-TS
... and VIALOX
®
NAV
®
-TS ... lamps achieve their rated
data at relatively high ambient temperatures, such as
those in typical fixtures or fixture simulators.
Detailed information on fixture simulators for determining
lamp data for HQI
®
-TS and HCI
®
-TS can be found in IEC
61167, Annex B.6. NAV
®
-TS ... lamps should be treated
similarly.
Lamp survival factor (LSF) states the percentage of
lamps that still function after a given period of time.
Lamp lumen maintenance factor (LLMF) states the per-
centage of luminous flux compared to the value at 100 h
still left at a given time.
Permitted line voltage deviation
The permitted line voltage deviation for operation on
electromagnetic ballast for HQL
®
is ± 10% and for HCI
®
,
HQI
®
and NAV
®
is ± 3%.
Sudden fluctuations in the line voltage of more than
± 10% may cause the lamps to go out. If the deviation
from rated supply voltage (230 V or 400 V) is permanent
without an adjusted choke tap, high intensity discharge
lamps may exhibit changes in chromaticity and luminous
flux. Lamp life may also be reduced. Electronic control
gear like the POWERTRONIC
®
PTi, PT-FIT or PTo is im-
mune to alterations in supply voltage to a large extent
and provides a constant lamp wattage over a wide
range of input voltage.
Safety
OSRAM high intensity discharge lamps meet the safety
requirements defined in IEC 62035 and IEC 61167.
Because of their high operating pressure the following
lamps may only be used in fully enclosed fixtures de-
signed to take them. In the rare case that a discharge
vessel shatters, the fixture must be able to retain all the
hot pieces of ceramic or glass throughout its life.
This relates to the following lamps:
—
All HCI
®
-T and HQI
®
-T lamps
—
All HCI
®
-TM and HQI
®
-TM lamps
—
All HCI
®
-TC lamps
—
All HCI
®
-TF lamps
—
All HCI
®
-TS and HQI
®
-TS lamps
—
All HCI
®
-TT and HCI
®
-ET lamps
—
All HQI
®
-E lamps
—
HQI
®
-R 150 W/NDL lamps
The following lamps are suitable for open fixtures:
—
All HCI
®
-E/P and HCI
®
-PAR lamps
—
All HQI
®
-E/P lamps
Operating lamps with a damaged outer bulb is danger-
ous and therefore not permitted. At the end of their lives,
sodium high-pressure lamps and metal halide lamps can
exhibit a “rectification” effect. This is not a manufacturer-
specific effect. Because of the excessive DC compo-
nents, when operated on electromagnetic ballasts the
lamp control gear (choke, transformers and/or starters)
may be overloaded. To meet the requirements of IEC
62035 therefore, suitable protective measures must be
taken to ensure that safety is maintained under these
conditions. This applies also to control gear with the
option of power reduction. NAV
®
PLUG-IN lamps have
been developed specially as substitutes for mercury
vapor lamps in existing fixtures and are therefore not
affected. The chokes and pf correction capacitors gen-
erally needed for operating discharge lamps may, under
certain conditions, create oscillating circuits. These
circuits may then produce excessive currents and volt-
ages, which in turn can destroy the control gear,
capaci-
tors and lamps. Such resonance phenomena must be
avoided by appropriate circuits and fuses.
Lamp operation
Operating high intensity discharge lamps for short pe-
riods in combination with frequent on/off switching will
shorten their life. The lamps should be operated for at
least 3 hours and should remain off for at least
30 minutes. This applies in particular to HQI
®
≥ 1000 W.
NAV
®
lamps are not suitable for short on/off cycles but
should burn for at least 5 minutes. In low-temperature
applications down to -50 °C only HCI
®
, HQI
®
and NAV
®
lamps are suitable for operation with an external igniter.
Such applications call for special (heatable) igniters such
as MZN 400 SU-LT from BAG Turgi (for lamps from 100
to 400 W) and similar igniters from other manufacturers.