D7BCT datasheet(42/54 Pages) OSRAM

42 / 54 page

OSRAM DULUX® EL – electronic energy saving lamps

Economical alternatives to ordinary light bulbs

Technical Guide

3.5.11 Mains current

harmonic content

3.5.12 RFI suppression

3.5.13 Resistance to

electro-magnetic

interference and

transient

overvoltages

3.5.14 Interference from

IR remote controls

3.5.15 Bases/holders

Since January 1, 2001 EN 61000-3-2 „Electromagnetic Compatibility (EMC)...“ is the

general standard for harmonic currents.

All OSRAM DULUX® EL and OSRAM CIRCOLUX® EL lamps comply with the

provisions of EN 61000-3-2.

All OSRAM DULUX® EL and OSRAM CIRCOLUX® EL lamps are RFI suppressed to

EN 55015 (identical to CISPR 15). Interference on the mains supply is prevented by the

interference suppression filter connected on the incoming side of the electronics.

All OSRAM DULUX® EL and OSRAM CIRCOLUX® EL lamps comply with the immunity

requirements defined in EN 61547 relating to external electromagnetic interference.

The discharge characteristics of fluorescent lamps means that a small amount of infra-

red radiation cannot be avoided. If conditions are less than ideal, particularly if the

lamps and the IR receiver are arranged too close to one another, this may lead to inter-

ference with IR remote controls. This also depends on the modulation of the radiation

emitted by the lamp (operating frequency of the ECG), the modulation frequency and

the coding of the signals used for IR signal transmission. The signal-to-noise ratio also

plays a role.

If interference occurs, we recommend moving the IR receiver out of the radiation range

of the lamp or by making sure it is not exposed to direct light.

The IEC has produced recommendations for avoiding such interference on IR signal

transmission equipment. Unfortunately, some old IR signal transmitters operated in

the same frequency range as the lamps (about 35 kHz).

OSRAM therefore increased the operating frequency of all OSRAM DULUX® EL

and OSRAM CIRCOLUX® EL lamps to more than 40 kHz to minimise the risk of inter-

ference.

The latest generation of IR controlled equipment is now making use of „intelligent“ IR

receivers that continue to operate correctly even if they receive IR interference.

OSRAM DULUX® EL LONGLIFE, OSRAM DULUX® EL ECONOMY and

OSRAM CIRCOLUX® EL lamps are equipped with E14 or E27 screw bases or with

B22d bayonet bases on request and will therefore fit in any standard incandescent

lamp fittings.

3. Lamp data and lamp properties

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