The maximum length of a flexible cord used to connect data-processing equipment to a branch circuit outlet box is ___.

The correct length for a flexible cord used to connect data-processing equipment to a branch circuit outlet box is 4.5 meters. This specification aligns with the National Electrical Code (NEC) guidelines, which outline safety standards for wiring and equipment installations.

Using a flexible cord of this maximum length helps to ensure that electrical connections remain secure while allowing for the necessary movement of data-processing equipment. Flexible cords are typically used to maintain a safe and orderly working environment without risking tripping hazards or the potential damage from overly long cables.

Additionally, the 4.5-meter limit is particularly important as it helps avoid the risks associated with overheating and electrical faults that could arise if excessively long cords are used. This code reflects an understanding of both functionality and safety, balancing operational needs with electrical safety standards in various settings, including offices and data centers.