Sharp QT-80W Instruction Manual download pdf (Page 14)

In detail:

• Safe shutdown of the power supply to defective lamps or

at the end-of-life due to End-of-Life detection according to Test 2

Shutdown in the event of broken filaments, no inserted lamp or air

leakage

• Compliance with European safety standards (EN 61347-2-3)

• Protection against short duration voltage surges (DIN VDE 0160)

and transient overvoltages

• Low housing temperatures allow the mechanical design of lighting

fittings with F- and FF- as well as M- and MM-approval mark

(EN 60598/DIN VDE 0710 and DIN VDE 0711)

• Can be used in emergency lighting systems according to

DIN VDE 0108

2.4 Supply Voltage

Electronic Control Gear QUICKTRONIC

for T5/∅ 16 mm-fluorescent

lamps (FH

…HE, FQ

…HO and FC

) can be operated on sinusoidal AC

voltage and DC voltage The recommended voltage intervals depend on the

design of the specific circuits.

The following chapters show the recommended voltage ranges and the

behaviour of the ECG at overvoltage and undervoltage.

2.4.1 Overvoltage and its

Reason

It is called an overvoltage if the ingoing voltage is significantly higher

than the nominal value.

In general, we have to differentiate between two overvoltages which

also can have different reasons.

1. Transient overvoltage with a typical duration of milliseconds.

This overvoltage can be caused by:

- Switching of inductive loads such as welding machines, elevators

alternators etc.

- lightening

Quasi-stationary overvoltage with a duration from a few minutes to hours.

This overvoltage can be caused by:

- different loads on the mains side (interruption of the neutral

conductor in 3-phase installations plus an additional asymmetric

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Sharp QT-80W Instruction Manual Page 14