Eaton Distribution Panel PRL3A

Visual inspection for signs of discoloration, cracking, scorching, overheating, or broken parts

Exercise the breaker operating mechanism, making sure it is opening and closing

Breaker showing signs of any one of these issues

If any issues are found, the breaker should be replaced

Sign off on the circuit breaker inspection

Switching mechanism and fuse connections visually inspected

Fusible devices inspected for signs of discoloration, cracking, scorching, overheating, or broken parts

Any worn parts or the entire switch replaced

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

Removal of dust and debris from bus bars, connections, supports, and enclosure surfaces

Wipe clean with a lint-free cloth

Do not use solvents to clean equipment, as damage to surfaces can occur

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

Do not use compressed air in cleaning

Perform a second Megger or DC test of the switchboard insulation between phases and ground

Prior to testing, remove all control power fusing and connections to products, which will be damaged in this test

Check all grills and ventilation ports for obstructions and accumulations of dirt

Clean ventilation ports, if necessary

For switchboards installed outdoors, inspect the air space under the switchboard to be sure that it is clean and clear of debris, leaves, and obstructions