O&M Manual –90E1720004
Section 10 Adverse Circumstances Page 48 of 52
Section 10 Adverse Circumstances
This section includes, but is not limited to, all electrical components of the switch.
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
Turn off all power supplying the switch before cleaning
Always use a properly rated voltage sensing device to confirm
power is off.
Failure to follow these instructions will result in death or serious
injury.
Note: Before attempting to re-energize the switch following adverse circumstances, contact
Russelectric Services at 1-800-654-3020 for special instructions.
Inspection Following a Short Circuit
If a short circuit occurs, make a thorough inspection of the entire system, and verify that no
damage to conductors or insulation has occurred. High mechanical and thermal stresses
developed by short-circuit currents may damage conductors and insulation. Check the
overcurrent protection device that interrupted the short-circuit current for possible arcing
damage.
Do not open sealed devices, such as molded case circuit breakers. These devices should be
replaced if damaged before re-energizing the switch.
Clean-up Following a Short Circuit
The insulating properties of some organic insulating materials may deteriorate during an
electrical arc. If so:
1. Remove any soot or debris.
2. Replace carbon-tracked insulation.
Water-Soaked Switches
Do not clean or repair a transfer switch that has been exposed to large volumes of water or
submerged at any time. Current-carrying parts, insulation systems, and electrical components
may be damaged beyond repair. Do not energize the equipment. Contact Russelectric Field
Services at 1-800-654-3020.
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