O&M Manual –90E1720004
Section 5 Installation Page 17 of 52
Lugs
Wrap 1/2 in
(13mm) sisal rope
or equivalent
Conductors
Conductor Restraint for Short Circuit Current Rating
HAZARD OF CONDUCTOR MOVEMENT UNDER SHORT CIRCUIT
CONDITIONS
Restrain conductors in the bypass-isolation transfer switch based
on Table 2.
Failure to follow this instruction can result in equipment damage.
Refer to Table 2 to determine if cable restraints are required. If restraints are required, perform
the steps following the table.
Table 2: Conductor Restrain Requirements
Note: Wrap conductors using 1/2-inch (13 mm) diameter sisal rope or equivalent.
1. Begin wrapping the conductors (Figure 7) a maximum
distance of 11 inches from the end of the
lugs. Continue to wrap the conductors on 11-
inch center(s) up to the point where the
conductors leave the enclosure.
a. Wrap the conductors four (4) times as
shown, leaving 3 ft (1 m) of excess rope at
the first end (A).
b. Pull the rope (B) taut.
Figure 7: Wrapping the Cables
Supply Cables 100 ka 200 ka
Up to 2000A No Yes
3200A No Yes
4000A No Yes
5000A No Yes
Load Cables 100 ka 200 ka
Up to 800A No Yes
1600A No Yes
2000A No Yes
3200A No Yes
4000A No Yes
5000A No Yes
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