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H400D bảng dữ liệu(PDF) 19 Page - OSRAM GmbH |
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H400D bảng dữ liệu(HTML) 19 Page - OSRAM GmbH |
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19 / 24 page ![]() 1 TS 44842 OSRAM / POWERSTAR HQI 106 T001 GB 4/24.5.2007 Fusing: HQI® lamps must be protected by slow acting fuses. If fuse wire is used it is sufficient for it to be rated at twice the rated current of the lamp. If automatic cutouts are used they should have characteristic “C”. If adjusted to the upper limit value of 10 x rated current there will be no triggering if fuse protection is at twice the rated lamp current. Restarting: The lamps will restart only after they have cooled down for 2 to 15 minutes. For POWERSTAR® HQI®-TS = 1000 W and HQI®-TS 2000 /D/S, instant restarting is possible with suitable igniters. The necessary surge voltage is 25 to 60 kVs. Lampholders: Because of the high voltages involved in ignition the lampholders must be designed for these high voltages. Lampholders that meet these requirements are available from appropriate manufacturers. Power reduction: Dimming metal halide lamps is not recommended. OSRAM cannot provide a guarantee for dimmed lamps. Dimming adversely affects colour rendering. The colour location shifts towards colder light colours and the colour spread increases. Dimmed lamps also tend to flicker. Lu- minous flux maintenance is significantly worse as a result of dimming. Dimming can shorten the life of the lamps. End of life: To protect the control gear and to avoid radio inter- ference, high-pressure discharge lamps must be replaced as soon as they come to the end of their life. These lamps reach their end of life when c the light colour of the lamp changes dramatically c there is a significant loss of brightness c the lamp no longer ignites c the lamp starts to cycle (periodically goes out and ignites again). At end of lamp life the risk of a broken burner rises. This phenomena is caused by effects not dependent on the manufacturer like the rectifying effect mentioned ear- lier. Because of this we strongly recommend to change the lamp latest after average lifetime has been reached or if one of the above mentioned effects are shown. Notes on disposal: All metal halide lamps contain small quantities of mercury. If they break, poisonous mercury vapour may be released. The lamps must be treated as waste requiring special supervision with EEC code 20 01 21* for waste or residue containing mercury and should be passed to a relevant collection or recycling company. Guarantee: A guarantee can only made if suitable control gear is used and the defined operating conditions are met. Safety: OSRAM high-pressure lamps meet the safety require- ments defined in IEC 6205. All HQI lamps up to 400 W are of UV-reduced design. The lamp packaging will indicate this fact until there is any change. Because of their high operating pressure all HQI-lamps may only be used in fully enclosed luminaires designed to take them: c All HQI®-TS c All HQI®-T c All HQI®-E ≥ 250 W As we cannot completely rule out the possibility of the bulb bursting, luminaires for the lamps mentioned above must be equipped with sealed shatter-proof shields that can withstand wide fluctuations in temperature. Operating lamps with a damaged outer bulb is dangerous and therefore not permitted. Exception: HQI®-TS ... without an outer bulb. Lamp operation: Operating high-pressure lamps for short periods in combi- nation with frequent on/off switching will shorten their life. This applies to both cold starting and hot restarts. The lamps should be operated for at least hours and should remain off for at least 0 minutes. This applies in partic- ular to HQI® = 1000 W. Exceptions: The following lamps are suitable for open luminaires: c All HQI®-E 70 W to 150 W c All HQI®-E/P The use of shields should be considered for safety reasons in each case. Luminaire design: Luminaire design (thermal design and fuse protection) should be based on the EN 6058-1 standard. HQI® 1000 W to 2000 W lamps should be held without pressure or by means of a lamp support close to the base-free end. |
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