3 things to check before energizing a new electrical panel

[Manon_Chaboud]

Before energizing a newly installed electrical panel, it is essential to follow a structured verification process to ensure safety, reliability, and compliance.

Here are three critical steps to include in your commissioning checklist:

1. Clean the panel thoroughly
Debris such as metal filings, loose screws, or cable strands can lead to short circuits or equipment failure. A complete visual inspection and vacuum cleaning should be performed before any energization.

2. Operate devices on de-energized equipment
All mechanical operations, such as opening and closing breakers, racking in/out withdrawable units, and testing interlocks, should be conducted with the panel de-energized. This helps identify mechanical issues and safely dislodge any hidden foreign objects.

3. Secure all barriers and enclosures
Ensure that all doors, covers, and internal barriers are properly installed and fastened. An incomplete enclosure assembly can compromise safety and increase the risk of exposure to live parts.

These simple steps help reduce the risk of equipment failure and personal injury during commissioning.

Incorporate these checks into your standard commissioning procedures and ensure all personnel are trained accordingly.