When installing new boxes in old buildings, what must they typically have?

When installing new electrical boxes in old buildings, it is essential for them to have special fasteners or attachments. This requirement exists because older structures may not conform to modern building standards and could lack the necessary support for contemporary electrical equipment. The use of specialized fasteners or attachments ensures that the boxes are securely mounted and can handle the electrical load without risking damage or dislodgement.

Standard fasteners may not provide the same level of security, especially in older materials that may deteriorate over time. Wooden frames for support might be useful in certain situations, but they are not a universal requirement and may complicate the installation process. Flexible hinges are not relevant to the installation of electrical boxes, as they pertain more to doors and other movable installations. Therefore, using special fasteners or attachments is critical for ensuring functionality and safety when working within the unique parameters of older buildings.