Megger Easytest 20 kV - Page 25

4-25
During recommissioning tests at very aged XLPE cables, a test voltage of 2 U
0
and a
test duration of 2 minutes must not be exceeded in order to avoid damaging the cable
during the test.
Breakdown detection
During an AC test, the breakdown detection of the system is always active.
If a
breakdown occurs during a test, the
system automatically terminates the test,
discharges the cable under test and shows the following system message:
If no breakdown occurs at run time of a time-limited AC test, the following system
message informs about the successful completion of the test.
CAUTION
Breakdown occured
clear
Test successful
No breakdown
clear