To apply these to your case you can either install new junction boxes to contain the dangling wire ends, and cap them off with wire nuts in the boxes -- or trace the cables back to the junction box they originated from, disconnect them there, and remove the dangling. To apply these to your case you can either install new junction boxes to contain the dangling wire ends, and cap them off with wire nuts in the boxes -- or trace the cables back to the junction box they originated from, disconnect them there, and remove the dangling. As a DIYer, it can be intimidating working with metal electrical boxes. But I'm going to show you a common mistake that people make when wiring them so that you can be confident in making your own wiring safe and secure. more Audio tracks for some languages were automatically generated. Learn. To securely mount an electrical box, you should first identify the type of wall material like drywall, plaster, or concrete and the box's purpose e. Include protection devices like breakers, fuses, and surge protectors—each circuit should have its own protection. Comply with standards: Follow NEC, IEC, or local codes. It is important to cut the. drywall - How can I secure this metal 1-gang electrical box without creating a bigger hole? - Home Improvement Stack Exchange How can I secure this metal 1-gang electrical box without creating a bigger hole? I removed wood paneling in a room to reveal shoddy plaster & lath. This can be done by using the built-in clamps or by employing other methods such as punching holes and feeding the wire through.