Sharp QT-80W Instruction Manual download pdf (Page 46)

significant change in temperature for some time). The supply voltage

should be held constant at least throughout the entire measuring cycle at

the rated voltage of the lamp.

The

following procedure is recommended for the thermal analysis of the

luminaire, taking into account the design requirements specified in EN

60598-1:

1. Thermal situation in the luminaire without contol gear heat.

Luminaire in measurement setup according to EN 60598-1 in

standard mounting position, equipped with ECG and lamp and fitted

with thermocouples. The lamp is supplied from external control

gear, and not from the built-in ballast. In this way the temperature

rise in the entire set-up resulting only from the lamp can be

measured and the thermal “link” to the environment can be

optimized.

Thermal situation in the luminaire with contol gear heat.

Arrangement as described in 1., but the lamp is supplied from

internal control gear. By comparison with the measured values

obtained already, the additional heat generated by the ECG can

now be assessed.

3.10 Luminaire Wiring Test

for Two-lamp

Luminaires

3.10.1 Testing with a Test

Adapter and Dummy

Lamps

A more precise wiring test for two-lamp luminaries than the one described

in Section 3.10.1 can be performed with a test adapter (own design with

the resistors shown in the diagram) and a sample tube (dummy lamp with

sockets measuring the resistance). This test can be used for two-lamp

luminaires equipped with the before mentioned ECGs.

¾Insulation test: 500 VDC acc. to EN 60598 app. 3...5 sec.; R = 2MΩ

¾High voltage test (100% for each luminaire)

QUICKTRONIC

lamp terminal

output

socket 1

output

socket 2

Earth connection via ECG- housing

¾Insulation test: 500 VDC acc. to EN 60598 app. 3...5 sec.; R = 2MΩ

¾High voltage test (100% for each luminaire)

QUICKTRONIC

lamp terminal

output

socket 1

output

socket 2

Earth connection via ECG- housing

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