Eaton Switchboard PRL4F

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

Sign off on the ventilation maintenance

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

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

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

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

Warning: Do not use compressed air in cleaning

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

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

Sign off on the cleaning process

Inspect bus bar and cables for visible damage

Visually inspect connections for overheating and damage

All bus bar and cable connections checked and torqued in accordance with labeling on the switchboard

Inspect for broken wire strands and pinched or damaged insulation on cable connections

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

Operating mechanism opens and closes properly

Breaker showing signs of any issues

If breaker shows signs of any issues, it should be replaced

Sign off on the circuit breaker inspection