Cable Sheath Testing - Siemens 8DJH Series Installation And Operating Instructions Manual

Operation
Work operations
126
20.2

Cable sheath testing

DANGER!
Normally, the switch-disconnector panel is not interlocked during the cable sheath test.
Prevent switching to OPEN or CLOSED position as follows:
Fit switching prohibition signs.
Secure the locking device (option) with a lock.
Closing lock-out (option)
ATTENTION!
In cable panels type K, the switching operation for the EARTHED position has no
influence on the voltage state of the radial cable behind the screwed-on cable
compartment cover.
Before removing the screwed-on cable compartment cover, isolate and earth
the radial cable in the opposite substation.
Isolate and earth the feeder under test.
Remove the cable compartment cover.
De-earth the cable shield at the cross member of the subframe as well as in
the opposite substation.
Perform the cable sheath test according to the manufacturer's instructions or
the customer's specifications.
Earth the cable shield again at the cross member of the subframe as well as in
the opposite substation.
Refit and lock the cable compartment cover.
De-earth the feeder in the switchgear and in the opposite substation and switch
the feeder on again.
Revision 03 * INSTALLATION AND OPERATING INSTRUCTIONS 8DJH * 500-8067.9