Whenever the following words or phrases are used in this Article, they shall have the respective meanings assigned to them in the following definitions:
COMMISSION: The Public Utilities Commission of the State of California.
PERSON: Means and includes individuals, firms, corporations, partnerships and their agents and employees.
POLES, OVERHEAD WIRES and ASSOCIATED OVERHEAD STRUCTURES: Poles, towers, supports, wires, conductors, guys, stubs, platforms, crossarms, braces, transformers, insulators, cutouts, switches, communication circuits, appliances, attachments and appurtenances located aboveground within a district and used or useful in supplying electric, communication or similar or associated service.
UNDERGROUND UTILITY DISTRICT or DISTRICT: That area in the City within which poles, overhead wires and associated overhead structures are prohibited as such area is described in a resolution adopted pursuant to the provisions of Section 21.01.04 of this Article.
UTILITY: Includes all persons or entities supplying electric, communication or similar or associated service by means of electrical materials or devices. (1954 Code §25.701)