GEC Length Limitations for CATV Systems

In one- and two-family dwellings, the grounding conductor for CATV shall be as short as practicable, not to exceed _____ in length.

a) 5 ft
b) 8 ft
c) 10 ft
d) 20 ft

See answer and applicable Code reference

The correct answer is: d) 20 ft

Part IV of Art. 820 in the NEC outlines the grounding methods for community antenna television and radio distribution systems. As per 820.100(A)(4), "The grounding electrode conductor shall be as short as practicable. In one- and two-family dwellings, the bonding conductor or grounding electrode conductor shall be as short as practicable, not to exceed 20 ft in length."