Stress Cones
Description:
Stress cones are a means of
preventing insulation failure at the termination of a shielded cable caused by
the high concentration of flux and the high potential gradient that would
otherwise exist between the shield termination and the cable conductor
Construction:
A stress relief cone is
made by increasing the separation between the shield termination and the
conductor cable. Precautions must be taken to insure a termination which is free
of dirt and foreign matter and insulating compounds and tapes must be applied in
a prescribed manner. Potheads may also be used with the stress relief cone
termination.
Application:
Typical uses for stress
cones would be in pad-mounted transformers, switchgear, high-voltage motor
installations or in most applications were shielded cable is being
terminated.
Installation:
Normally Stress Cones are
not provided by the motor manufacturer but are made by the motor installer. When
a customer requires stress cones, the manufacturer will supply a conduit box
with sufficient room for the stress cone on each lead.
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