Minimum Conductor Size for Antennas

An outdoor wire-strung antenna conductor of a receiving station with a 75 ft span using a hard-drawn copper conductor shall not be less than _____ AWG.

a) 17
b) 14
c) 12
d) 10

See answer and applicable Code reference

The correct answer is: b) 14

Article 810 focuses on radio and television equipment. Antenna systems are the focus of Part II of this Code Article. As per Sec. 810.16(A), "Outdoor antenna conductors for receiving stations shall be of a size not less than given in Table 810.16(A)." A quick look at this table reveals a minimum copper conductor size of 14 AWG for span lengths greater than 45 ft.

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