Cable Testing - Siemens NXPLUS C Installation And Operating Instructions Manual

Operation
Preconditions
Test adapter
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26

Cable testing

Before testing the cables, the switch positions must be as follows:
• Circuit-breaker in OPEN position
• Three-position switch in OPEN position.
The following table contains the maximum values for the test voltages:
Rated voltage of the
switchgear [kV]
12
24
36
ATTENTION!
If DC voltage is applied to the cable and there are incoming overvoltages on the busbar, there is
risk of flashovers.
Keep safety distances.

Install barriers.

Switch on warnings.

ATTENTION!
The voltage indicators CAPDIS-S1+, CAPDIS-S2+, LRM, VOIS+, VOIS R+, WEGA 1.2 and WEGA
2.2 may be damaged if test voltage is applied.
Short-circuit the voltage indicators with the earthing points of the test sockets.

Fig. 116: Short-circuit plug, make Kries,
order number 2500029
Suitable test adapters must be available for performing the cable test. The following table
offers an overview of the test adapters of the individual cable T-plug manufacturers:
Supplier of cable T-plug
Nexans Euromold
nkt cables
Südkabel
Tyco Electronics Raychem RSTI-56TR
Revision 05 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C Wind • 802-9074.9
DC test voltage
maximum value Test duration
[kV] [min.]
36 15
72 15
72 15
Fig. 117: Short-circuit plug, make Horstmann,
Test adapter
400TR
PAK 630 M12
PAK 630 M16
–
RSTI-56TR
RSTI-68TR
RSTI-68TR
AC test voltage 0.1 Hz
maximum value [kV] Test duration
19
38
57
order number 51-9904-001
for cable T-plug
M400TB/G; M430TB/G; M440TB/G
CB36-630; CC36-630
CB36-630(1250); CC36-630(1250)
SEHDT 33
RSTI-66xx, RSTI-CC-66xx
RSTI-66Lxx
RSTI-68xx;RSTI-CC-68xx
RSTI-69xx;RSTI-CC-69xx
[min.]
60
60
60