S&C Instruction Sheet 766-540 5
Safety Precautions
DANGER
IntelliRupter PulseCloser Fault Interrupters operate at high voltage. Failure to
observe the precautions below will result in serious personal injury or death.
Some of these precautions may differ from your company’s operating procedures
and rules . Where a discrepancy exists, follow your company’s operating procedures
and rules .
1 .
QUALIFIED PERSONS. Access to an IntelliRupter
fault interrupter must be restricted only to qualified
persons . See the “Qualified Persons” section on
page 2 .
2 .
SAFETY PROCEDURES. Always follow safe operating
procedures and rules .
3 .
PERSONAL PROTECTIVE EQUIPMENT. Always use
suitable protective equipment, such as rubber gloves,
rubber mats, hard hats, safety glasses, and flash
clothing, in accordance with safe operating procedures
and rules .
4 .
SAFETY LABELS. Do not remove or obscure any of
the “DANGER,” “WARNING,” “CAUTION,” or “NOTICE”
labels .
5 .
OPERATING MECHANISM AND BASE. IntelliRupter
fault interrupters contain fast-moving parts that can
severely injure fingers . Do not remove or disassemble
operating mechanisms or remove access panels on the
IntelliRupter fault interrupter base unless directed by
S&C Electric Company .
6 .
ENERGIZED COMPONENTS. Always consider all
parts live until de-energized, tested, and grounded . The
integrated power module (IPM) contains components
that can retain a voltage charge for many days after the
IntelliRupter fault interrupter has been de-energized
and can derive a static charge when in close proximity
to a high-voltage source . Voltage levels can be as high
as the peak line-to-ground voltage last applied to the
unit . Units that have been energized or installed near
energized lines should be considered live until tested
and grounded .
7 .
GROUNDING. The IntelliRupter fault interrupter base
must be connected to a suitable earth ground at the
base of the utility pole, or to a suitable building ground
for testing, before energizing an IntelliRupter fault
interrupter, and at all times when energized .
The ground wire(s) must be bonded to the system
neutral, if present . If the system neutral is not resent,
proper precautions must be taken to ensure that the
local earth ground, or building ground, cannot be
severed or removed .
8 .
VACUUM INTERRUPTER POSITION. Always confirm
the
Open/Close position of each interrupter by visually
observing its indicator .
Interrupters, terminal pads, and disconnect blades
on disconnect style models may be energized with
the interrupters in any position .
Interrupters, terminal pads, and disconnect blades
on disconnect style models may be energized from
either side of the IntelliRupter fault interrupter .
9 .
MAINTAINING PROPER CLEARANCE. Always
maintain proper clearance from energized components .
