D7BCT datasheet(18/54 Pages) OSRAM

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1. General

OSRAM DULUX® EL – electronic energy saving lamps

Economical alternatives to ordinary light bulbs

Technical Guide

1.3.9 OSRAM DULUX® EL

LONGLIFE

FACILITY

Use with stairwell lighting time switches:

The total power input of multiple OSRAM DULUX® EL FACILITY lamps should not

exceed 1/8 of the permitted incandescent lamp load. This value depends on the

switch design and cannot be applied to other types of energy saving lamp. In addition

to the switching load, the provisions of DIN 18015-2 must also be noted:

„…in the case of lighting systems in stairwells of multi-family residences, automatic

disconnection circuits must be equipped with a warning function (such as dimming of

the lights) to avoid sudden darkness“. The type and design of this warning function

have not been standardised.

Known designs:

• Warning function with reduced brightness (dimming): The dimming function is

generally achieved by half-wave rectification of the mains voltage. DEL FACILITY

is not suitable for this mode of operation.

• Warning signal provided by multiple (double) flashing (interruptions of the current)

before disconnection: The lamp is not likely to suffer damage. The warning signal is

noticeably changed by the preheating phase of the DEL FACILITY (approx. 0.4 s). If

there is an unsuitable pulse sequence the lamp may go off (at least 0.4 s for each

switching operation).

ON time:

For the benefit of the lamp, the ON time should not be less than 3 minutes.

Examples:

a) Incandescent lamp load for 2300 W cutout, the following can be connected:

OSRAM DULUX® EL FACILITY 28 x 10 W or 20 x 14 W

b) Incandescent lamp load for 1000 W cutout, the following can be connected:

OSRAM DULUX® EL FACILITY 13 x 10 W or 9 x 14 W

D7BCT Scheda tecnica(PDF) 18 Page - OSRAM GmbH