S&C PMH Instructions For Operation Manual page 17

SWITCHING WITH UNI-RUPTER — Continued
3. For all fuses except 25-kv Fault Fiter Electronic
Power Fuses, install a fuse into its hinge as follows:
(a) Position the Grappler cone in the fuse pull ring and
cradle the fuse in the Grappler prongs. See inset of
Figure 15.
(b) Grasp the universal pole with both hands (approxi-
mately 2 feet apart), with one hand at the opposite
end of the pole from the Grappler.
(c) Lift the fuse and lower it into its hinge. See Figure
15. Make sure that the fuse is securely seated in the
hinge; then disengage the Grappler from the fuse.
See Figure 16.
Ç
Keep the fuse away from the Uni-Rupter contacts
when installing the fuse into its hinge. Touching the
contacts will close the circuit which can cause a
flashover and serious injury. Always place the
dual-purpose front barrier in the "slide-in" position
whenever a fuse is open or is being removed from or
installed into its hinge.
Figure 14. Inserting dual-purpose front barrier into the
"slide-in" position using Grappler.
s
S&C ELECTRIC COMPANY
DANGER
4. For 25-kv Fault Fiter Electronic Power Fuses, de-
energize, test, and properly ground the mounting in
accordance with safe operating procedures and rules,
and then install the fuse into its mounting by hand
using suitable protective equipment.
Ç
Do not close a door on a fuse in the open position. The
door will strike the fuse pull ring which will inter-
fere with door closing. The door may be closed if the
fuse is removed from its mounting.
Figure 15. Installing fuse using the Grappler. Inset shows
close-up of Grappler in position to install the fuse.
INSTRUCTION SHEET
NOTICE
663-503
Page 17 of 35
August 14, 1995