Cable Testing; Safety Instructions; Test Voltage - Siemens 8DA10 Series Installation And Operating Instructions Manual

861-9601.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DA10 • Revision 11
40

Cable testing

40.1

Safety instructions

Life-endangering high voltage
Can cause death, serious injury and property damage. DC voltage applied to the cable
and overvoltages at the busbar can cause flashover.
➭ Keep safety distances.
➭ Install barriers.
➭ Switch on warnings.
High voltage and explosion hazard
If the voltage transformer is energized, or if it is of the non-disconnectable type,
the test voltage can destroy the voltage transformer and cause personal injuries.
➭ Switch disconnectable voltage transformers to EARTHED position before testing the cables,
and secure them.
➭ Remove non-disconnectable voltage transformers.
Voltage indicators may be damaged by test voltage during cable tests.
May cause property damage.
➭ Short-circuit the voltage indicators with short-circuit plugs at the earthing points of
the test sockets.
40.2

Test voltage

Two possibilities for cable testing are described hereafter.
Test voltages
Rated voltage of the DC test voltage
switchgear [kV]
Maximum value
[kV]
7.2 22
12 38
15 52
17.5 52
24 72
25 72
36 72
38.5 72
40.5 72
1
Very low frequency
Can cause injury or property damage.
Before starting the cable test, the suitability of the cables must be verified regarding
the selected test voltage.
➭ If a test duration different from the duration stated above is applied, please contact
the regional Siemens representative.
DANGER
DANGER
NOTICE
AC test voltage VLF
Test duration Maximum value
[min] [kV]
15 11
15 19
15 28
15 28
15 38
15 38
15 57
15 57
15 57
CAUTION
Operation
1
0.1 Hz
Test duration
[min]
60
60
60
60
60
60
60
60
60
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