Siemens 8DB10 - Page 162

Operation
162/214 Revision 06 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DB10 • 864-5091.9
Emergency operation of
the DISCONNECTING
function
If the switch does not reach its end position, e.g., due to a failure of the auxiliary voltage
during disconnector operation, push the operating lever with pushed-on adapter onto
the hexagonal shaft for the DISCONNECTING function in such a way that the pin of the
hexagonal shaft fits in the inner slot of the operating adapter.
Fig. 188: Inserting the operating lever with pushed-on adapter (DISCONNECTING function)
DANGER
Danger of personal damage due to short-circuit. When switching with the emergency
operating lever with adapter, there is a risk of switching a live busbar system straight to
EARTHED position.
➭ Turn the emergency operating lever with adapter carefully into the required end position.
➭ When switching with the emergency operating lever with adapter, check the current
switch position continuously at the position indicator.
ATTENTION
The work-in-progress earthing contact of the disconnector in busbar system 2 is designed for
maintenance work at the three-position disconnector in busbar system 1 in de-energized
condition only.
➭ Before switching to the work-in-progress earthing contact, always contact the regional
Siemens representative.