What is an important safety feature required for electrical boxes?

The requirement for electrical boxes to be securely mounted and securely closed is crucial for several reasons related to safety and functionality. When electrical boxes are properly secured, they reduce the risk of damage to the wiring within the box, which could lead to short circuits, electrical fires, or other hazardous situations. A securely closed box also prevents accidental contact with live electrical components, reducing the risk of shock or injury to anyone handling the electrical installations. Additionally, ensuring that the box is completely closed helps to protect the internal components from dust, moisture, and other environmental factors that could compromise the integrity of the electrical connections. Overall, these measures are essential in maintaining electrical safety and compliance with electrical codes, thereby providing a secure environment for both the installation and the users of the electrical system.