Eaton Switchboard PRL2X

Switch mechanism is turned to the OFF position

Visual inspection of the switch contacts, blades, and mechanism to ensure that the mechanism is in the OPEN/OFF position

Fuses are of the proper class, ampere, voltage, and interrupting rating

Non–current-limiting fuses are not used as replacements for current-limiting fuses

Rejection mechanisms that are provided to prevent the installation of the incorrect class of fuse are not defeated

Sign off on the fuse replacement

Warning: This maintenance check requires trained personnel with PPE!

Bus bar and structure insulation visually checked for damage

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Choose the type of service done

Sign off on the insulation maintenance

Warning: Ensure the switchboard is de-energized before starting the cleaning process

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Dust and debris removed from bus bars, connections, supports, and enclosure surfaces?

Switchboard wiped clean with a lint-free cloth?

Was the switchboard exposed to adverse conditions such as airborne contaminants?

Warning: Do not use compressed air in cleaning

Compressed air not used in cleaning?

Second Megger or DC test of the switchboard insulation between phases and ground performed?

Visually inspect the switching mechanism and fuse connections

Visually inspect the fusible devices for signs of discoloration, cracking, scorching, overheating, or broken parts

Replace any worn parts or the entire switch

Check all wiring connections for tightness, including those at the current and potential transformers, if present, and at all terminal blocks

Check all secondary wiring connections to ensure that they are properly connected to the switchboard ground bus, where indicated

Look for broken wire strands and pinched or damaged insulation

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