In one- and two-family dwellings, what is the maximum length for the bonding conductor or equipment grounding conductor for CATV?

The maximum length for the bonding conductor or equipment grounding conductor for Cable Television (CATV) in one- and two-family dwellings is specified as 20 feet. This length is important because it ensures that the grounding conductors are effective for safety and performance. A shorter length helps to minimize potential impedance, which is crucial for maintaining the effectiveness of the grounding system to protect against electrical shock and equipment damage.

In residential settings, these bonding conductors must connect various systems to a common ground to prevent differences in electrical potential, which could lead to hazardous situations. Limiting the length to 20 feet strikes a balance between practical installation and the necessity for proper grounding practices, adhering to safety codes and industry standards.