S&C Instruction Sheet 765-510 25
The Omni-Rupter Switch terminal pads are silver-plated
and do not require abrasive cleaning as a part of their
preparation. Wipe any dirt or grease from the surface and
apply a thick coating of Burndy Corporation’s Penetrox®
A or other appropriate conductor preparation compound.
NOTICE
DO NOT wire-brush the terminal pads. Wire brushing
may scratch the plating.
STEP 18. When high-voltage conductors are to be
connected using aluminum-alloy connectors
●,
use the following procedures:
(a) Thoroughly wire-brush the current-transfer
surfaces of each connector and immediately
apply a liberal coating of conductor
preparation compound to the brushed
surfaces. Do not wire-brush the Omni-
Rupter Switch terminal pads.
(b) Place the hinge-end articulating terminal
pad in the center-neutral position. See
Figure 26.
(c) Prepare the conductors using the
manufacturer’s or utility’s standard
procedures and clamp them in their
respective connectors.
(d) Attach the connectors to the terminal pads.
Allow the articulating terminal pad to
“settle” naturally with the weight of the
conductor.
For other types of connector, follow the
manufacturer’s recommended preparation
procedure before connecting to Omni-
Rupter Switch terminal pads. See Figure 27.
NOTICE
To avoid overloading the terminal pads, S&C
recommends making the jumper connection
to the line conductor before securing the
jumper fasteners to the terminal pad.
STEP 19. Attach the jumper connectors to their respective
terminal pads using exible-conductor
connections. See Figure 27.
Figure 26. Place the articulating terminal pad in the Center
Neutral position.
Terminal pad
(Center Neutral
position)
Blade
Conductor
Figure 27. Attach the jumper connectors to the terminal
pads. Do not overload the terminal pads. (Typical connector
attachment.)
Articulating terminal pad
Jumper
connector
● “Mass-anode” type connectors, such as the catalog number 5300
series S&C offers, that have been designated by the connector manu-
facturer as being suitable for direct attachment to copper alloy terminal
pads.
Installation
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