D7BCT datasheet(45/54 Pages) OSRAM

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OSRAM DULUX® EL – electronic energy saving lamps

Economical alternatives to ordinary light bulbs

Technical Guide

3.7 Life

(Continued)

3.8 Suitability for

outdoor applications

3.9 Suitability for

explosion-proof

luminaires

The following may shorten the life of a lamp:

• Overloading of the lamp at excessive supply voltage (see 3.5)

• Failure of electronic components at excessively high/low ambient temperatures

(see 3.4)

• Operation on standard leading-edge or trailing-edge dimmers (see 3.5.3)

• Operation on eletronic switches (see 3.5.4)

• Operation on switches with load relief, spark suppression or neon lamps parallel to

the switch path (see 3.5.5)

• Operation parallel to non-pfc CCG lamps (see 3.5.7)

• Operation on non-sinusoidal voltage sources (see 3.5.9)

• Frequent switching – e. g. in stairwell lighting (see 3.1, exceptions: OSRAM

DULUX® EL VARIO, OSRAM DULUX® EL SENSOR Plus and OSRAM DULUX® EL

FACILITY)

• Excessively short OFF times (PTC thermistor) for OSRAM DULUX® EL LONGLIFE

and OSRAM CIRCOLUX® EL

When lamp comes to the end of its life the lamp circuit is broken; the flickering typical

of fluorescent lamps operated on chokes and starters does not occur with electronic

energy saving lamps.

OSRAM DULUX® EL LONGLIFE and ECONOMY lamps are suitable for outdoor use.

However, to protect them from moisture they must be used in enclosed ventilated

luminaires that have a drain hole where condensate can escape.

If the lamps are used outdoors in winter the luminous flux may be reduced by the low

temperatures (see Section 3.4.1).

OSRAM DULUX® EL CLASSIC and OSRAM DULUX® EL GLOBE (LONGLIFE

and ECONOMY) in enclosed ventilated luminaires (with drain holes) or semi-

enclosed luminaires are ideal for outdoor use in the base down burning position.

If low temperatures are expected, OSRAM DULUX® EL LONGLIFE CLASSIC (1.3.5)

or GLOBE (1.3.7) should be used.

OSRAM DULUX® EL LONGLIFE and ECONOMY lamps can also be used in areas

where there is a heigthened risk of fire or explosions. The requirement here is that

they should be used in luminaires that comply with type of protection „flameproof

enclosure“ to EN 50018. The fact that these lamps produce much less heat than

incandescent lamps is advantageous here.

3. Lamp data and lamp properties

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