832-6063.0 * OPERATION SIMOSEC * REVISION 02 79
Operation
19.6 Switching the three-position switch from GROUNDED to OPEN position
Obtain clearance for removal of ground in accordance with established procedu-
res for lockout-tagout complying with OSHA regulations and NFPA 70E.
• Verify that all work requiring grounding has been completed.
• Verify that all personnel are clear of conductors.
• Verify that any temporary grounds or short-circuits have been removed.
• Verify that all covers and doors have been closed.
Ö Remove padlock (if present) from control gate of three-position switch.
Ö Push control gate of three-position switch to the left and hold.
Ö Insert operating lever (with red grip) onto operating shaft of operating mechanism.
Ö Move operating lever up to the "OPEN" position.
OPEN position in fuse
switch panel
Ö Verify that the discharge switch is in OPEN position - i.e., the movable
grounding contact (option) is not touching the second fuse contact - through
the inspection window of the cable compartment cover.
Position of grounding contacts with grounding switch in OPEN position.
Ö Remove operating lever.
Ö Install padlock at center position of control gate of three-position switch (if desired).
Ö Stow away operating lever.
The three-position switch is protected against unauthorized use, if the control gate is
padlocked.
To Next Page
Loading...
