15.20.100 Installation standards.
A. No antenna, mast or tower shall be attached to or supported by a parapet wall, chimney or vent pipe.
B. No antenna, mast or tower shall be installed in such close proximity to any electric, telephone, telegraph or other public utility line or wire that the antenna, mast or tower, if overturned or blown down, would or could come in contact or within two feet of any such wire or line; provided, that this provision shall not apply to a service lead or drop. In no case shall a mast or antenna be installed nearer to a street or sidewalk than the height of the antenna plus ten feet unless approved by the building inspector and no wires, cables or guy wires shall cross or extend over any part of any street or alley unless permission is first obtained from the council.
1. Where the strict application of the provisions of subdivision 1 of this subsection makes it difficult or virtually impossible to install or erect a mast or tower for radio or television antenna, or antennas, because of the peculiar or particular location of any buildings or premises and the utility wires in close proximity thereto, a special permit may be issued for the installation of any such antenna, mast or tower provided the application there for be first approved by the building inspector, and the application shall set forth the undue hardship created by the strict application of subdivision 1, and the building inspector shall approve any such application if he first finds that the proposed installation will not be unduly hazardous and will not constitute a menace to persons or property, and the building inspector may prescribe such safeguards as he may deem necessary for the protection of persons and property.
C. The masts or any antenna shall be guyed every ten feet, except where masts three inches in diameter or larger are used the guy spacing may be increased provided the pro visions of subsection F of this section are complied with, and shall be grounded with not less than #8 copper or #8 aluminum wire; and the ground shall be attached to a cold water pipe with an approved ground clamp, or an approved ground rod not less than one-half-inch in diameter and four feet in length may be used.
D. Screw eyes or snubbed screw hooks shall be not less than one fourth inch in diameter and the same shall be set not less than two inches in a solid structural member and not more than one guy or guyline shall be attached to any screw eye or hook.
E. Guy wires shall be not less than 6 20 stranded galvanized steel cables.
F. Not less than three guy anchors shall be used to guy any mast, and in case three only are used, they shall be spaced at one hundred twenty degrees apart. All guy wires shall be securely fastened.
G. Every mast, tower or device installed on a roof shall be mounted on its own platform or plate covering one or more rafters of the roof and shall be securely anchored with guy wires, and installations shall be structurally sound, shall be of weatherproofed metal construction, and shall be made to meet all state and local safety code requirements, providing radio and transmission masts or antennas need not be of all metal construction. (Ord. 993, 1953)