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Intelligent DALI DIM | Overview of dimmable control gears

2.3 Installation and wiring instructions for dimmable

luminaires/lighting installations

2.3.1 Burn-in instructions, wire insulation and

voltage loads

— New lamps must be burned in for 100 hours at full pow-

er to achieve formation and basic stabilization. Interrup-

tions while burning-in are permitted. Without burn-in,

lamps may ﬂ icker and premature burn-outs or low life-

times may be caused. For measurements in accordance

with IEC 60081, the lamps also need to be burned in ac-

cordingly to achieve maximum luminous ﬂ ux and opti-

mal lamp stability.

— Dimming is generally only possible with ﬁ lament pre-

heating. The ﬁ lament temperature must be constantly

maintained through additional heating; otherwise, ef-

fects such as wolfram erosion (sputtering) or increased

condensation in the emitter materials can occur.

— The control input (DALI as well as 1…10 V) is separated

from the mains (230 V voltage-proof) through basic insu-

lation (not SELV). The mains cable and control lines may

therefore be conducted together in a 5-core NYM cable.

Note (according to DIN VDE 0100/11.85, T520,

section 528.11)

— Cables or wires used must be insulated against the

highest operating voltage or each wire of a multi-

core cable/multi-strand wire must be insulated

against the next voltage occurring in the cable/wire.

— If multi-wire cables are laid in cabling tubes or chan-

nels, only the wires of a main current circuit and

those of the associated auxiliary circuits may be laid

together.

— Several main current circuits and their associated

auxiliary current circuits may be combined in a cable

(according to DIN VDE 0100/11.85, T 520, section

528.11).

—

Cables and terminals must be used for installation which

are approved for the mains voltage (230 V).

— The installation must be executed in such a way that all

signal and control lines are shut down when the mains

voltage shuts down.

— All components of the mains current and control current

circuits must be designed for a 250-V working voltage

to ground.

— All luminaires may be wired in connection with OSRAM

DALI/DIM ECGs with H05 cables as long as the U-OUT

is not exceeded by 430 V

eff

– and additionally tested

in an isolation test (acc. to VDE). OSRAM QUICK-

TRONIC

DALI/DIM ECGs also do not exceed 430 V

eff

for T5-Ø-16 mm HE and HO ﬂ uorescent lamps.

2.3.2 Safety and installation instructions

Installation and mainte-

nance of electronic control

gears only by qualiﬁ ed elec-

tricians

Disconnect the electronic

control gear from the mains

voltage before carrying out

maintenance work

Only operate indoors or out-

doors with a suitable type of

protection

2.3.3 Wiring instructions for dimmable luminaires –

suppression of radio interference

Replacing dimmable ECGs is only approved for luminaires

of protection class I (PC I) because sufﬁ cient earthing is

only guaranteed here.

Note

When dimming, the operating frequency of the lamp in-

creases at the same time as the lamp voltage, which leads

to increased leakage currents. Leakage currents emerging

from the lamp always ﬂ ow back into the ECG, because the

electrical circuit must be closed. In order to keep the cable-

related interferences to a minimum, the leakage current is

offered another return path, the protective earth (= housing)

and the PE connection of the ECG. In short: Interference-

free dimming is not possible without protective earth. Dim-

mable ECGs only work in PC I luminaires and not in PC II

luminaires, because the latter do not have a protective con-

tact. Connecting the dimmable ECG to the functional earth

is not permitted.

1) According to DIN VDE 0100, part 520, section 528.11, main current

circuits and their associated auxiliary current circuits may be laid to-

gether, even if the auxiliary current circuits conduct a lower voltage

than the main current circuits.