What are the key considerations when installing a 3 phase sub panel in a commercial building?

When installing a 3-phase sub panel in a commercial building, key considerations include ensuring proper sizing of the panel based on the electrical load, selecting the appropriate location for installation to meet code requirements, providing adequate ventilation and access for maintenance, and ensuring proper grounding and bonding for safety and efficiency. Additionally, it is important to follow all local building codes and regulations, and to consult with a qualified electrician for proper installation.