No barbed wire fencing shall be erected or maintained within the city except:
A. One course of barbed wire may be installed above the top line of a chainlink fence located in a district zoned for industrial purposes or on property used for industrial purposes under a valid nonconforming use.
B. Barbed wire fences which comply with Illinois statutes may be erected and maintained on premises within the city which are zoned for agricultural purposes. (2006 Code § 4-6-4)