As used in this chapter, the following terms
shall have the meanings indicated:
ELECTRICAL CONTRACTOR
Any person, firm or corporation engaged in the business of
installing or altering, by contract or otherwise, electrical wiring
devices and equipment for the utilization of electricity supplied
for light, heat or power. "Electrical contractor" shall not apply
to public utility corporations installing electric wiring devices
or equipment for their own use nor to employees of electrical contractors
doing or supervising electrical work.
It shall be unlawful for any person, firm or
corporation to engage in the business of electrical contracting in
the manner herein set forth without being registered and licensed.