51-0181-0100 EP06-06 MPA4-150R Anglès.doc 5 of 6
BURNING TEST
Leave the tested unit connected to its correspondent mains voltage, applying input signal
and connecting load impedances, and running at its burn test level for at least 24 hours.
SAFETY VERIFICATION TESTS.
Preliminary:
Unplug the unit to be tested from the mains outlet.
Short all ground terminals from signal inputs, outputs and other external connectors,
except the mains plug’s ground.
Turn on the unit’s main power switch.
Ground continuity test:
Connect the tester’s probes between the mains ground contact and the unit’s backside
main ground test point. When applying a 10A current, verify that the ground impedance is lower
than 0.1
Ω
.
Electrical insulation test:
Connect the electrical insulation tester probes between the mains outlet ground contact
and both shorted mains input poles. Adjust the tester’s current limit down to 10mA. Apply
1500Vac during 5 seconds.
The unit’s insulation should be able to resist this voltage, without generating spurious
sparks or a sparkover effect, and the tester may not detect any disfunction.
CAUTION: Do not disconnect nor touch the test probes until the test has finished completely!
