How to Replace a Broken Electrical Panel in a Commercial Building

Replacing a broken electrical panel in a commercial building is a complex and potentially dangerous project that should only be attempted by a licensed electrician. As the property owner or facility manager, it is crucial to understand the full process in order to properly plan, budget for, and oversee the repair work. In this article, I will provide an in-depth guide on the key steps involved in replacing a faulty electrical panel in a commercial setting.

Gather Background Information on the Existing Electrical System

Before beginning any work, it is essential to thoroughly research the existing electrical system. This includes:

Select an Appropriate Replacement Electrical Panel

With a firm understanding of the existing system, the next key step is selecting a suitable replacement panel.

Safely De-Energize the Panel and Circuitry

Before any removal work begins, the panel and all connected circuitry must be completely de-energized to avoid electrocution and arc flashes:

Remove the Faulty Electrical Panel

With the old panel safely powered down, the next stage is cautious removal:

Install the New Replacement Panel

With the old panel out of the way, the new one can be neatly installed:

Make All Electrical Connections

The existing circuit wiring can now be terminated at the replacement panel:

Energize and Test the New Panel

With all wiring carefully completed, the new panel can be powered up and tested:

Have a Licensed Electrician Inspect and Approve

As a final best practice, the completed panel replacement should be inspected by a licensed electrician prior to returning the system to normal use. They will check for:

Only after the electrician has certified the new panel and system as code-compliant and safe to energize can normal building electrical service be fully restored.

Replacing a commercial electrical panel is a complex project with serious hazards if mistakes are made. Hiring a professional electrician is highly recommended. While this overview covers the major steps involved, there are important additional safety protocols and electrical codes that must be strictly followed to ensure a successful outcome. Proper planning, preparations, and attention to detail are imperative when undertaking this type of major electrical system upgrade.