a.Metal masts shall be effectively grounded, and ground wires used in lightning protection systems shall be No. 6 or No. 8 copper A.W.G. or aluminum wire with equivalent current carrying capacity (No. 4 or No. 6).

b.Ground clamps shall be of the “approved” type.

c.Antenna systems shall not interfere with Fire Department operations.

d.An antenna system shall have a full clearance of eight feet (8') from other antennas on flat roofs. An antenna system shall be eight feet (8') above all points on a flat roof.

e.An antenna system shall not cross a public way, or above or below light, power and communication lines, without written approval of the Building Inspector.

f.Lead-ins shall be separated by at least two feet (2') from power lines with potentials up to 250 volts, ten feet (10') from lines with potentials higher than 250 volts, and six feet (6') from lightning rod systems.

g.Wherever possible, the location of the antenna system shall be such that sagging, swinging, or collapse of the antenna will not result in contact with light or power lines which carry voltages of 240 or more volts, or with communication lines.

h.Anchor screws or lead expansion shields shall be used in masonry at anchor points of mast and guy wire supports.

i.Guy wires shall be at least 3.32 inch, four strand cable, galvanized steel, or No. 14 gauge solid galvanized steel wire.

j.Antenna systems shall be adequately supported to withstand extreme conditions of wind.

k.Chimneys shall not be used as a mast support.

l.Masts shall be set in an approved metal base if placed on a roof.

m.All antennas, except those of the self-supporting type, with masts ten feet (10') high or higher, shall be guyed in sets of four (4) guy wires at each ten foot level of the mast.

n.The angle of the guy wire with the mast shall not be less than 30 degrees.

o.Antenna supports on frame structures shall be fastened to rafters or beams with adequate screw eyes or hooks.

p.The maximum height of antennas above the ridge of the roof when mounted on the roof of one-story structures shall not exceed 46 feet and when mounted on the roof of structures of two or more stories, 40 feet. The maximum height of antennas supported directly from the ground shall not exceed 60 feet. Variances from these requirements shall be by permit granted by the City Council.

q.The materials entering into the construction of the antenna system shall be of a quality that meets the standards of recognized testing laboratories such as the Underwriters’ Laboratories, and shall bear the stamp of approval of these laboratories as well as the trademark of the manufacturer.

r.Mast and miscellaneous hardware shall be non-corrosive.

s.Attachment of any part of the antenna system to light, power, or communication structure or poles shall be prohibited.