Yes! Running Romex in a metal box is completely possible and safe if done correctly. However, it’s important to note that special precautions are needed to ensure proper grounding. Here are some key points to keep in mind:
Make sure the metal box is grounded. The metal box must be connected to a grounding wire that runs back to the main electrical panel. This grounding wire creates a safe path for electrical current in case of a short circuit or other electrical fault.
Use cable clamps to secure the Romex. Cable clamps ensure that the wires are securely held in place so they won’t shift or move around over time.
Check the box fill capacity. Metal boxes come in different sizes, so it’s important to make sure that the box you choose has enough space to safely accommodate the wires you’ll be running. Overfilling a box can be dangerous, so always err on the side of caution and choose a larger box if you’re uncertain.
Ensure adequate insulation. When running Romex through a metal box, make sure there is adequate insulation around the wires. This helps prevent contact between the wires and the metal box, which can cause a short circuit.
Maintain clearances. When running multiple wires through a metal box, make sure there is adequate space between them to prevent accidental contact. You’ll also want to make sure that there is enough space between the wires and the sides of the box to prevent any damage or wear over time.