A.
Plumbing, heating, electrical, ventilating, air-conditioning, refrigerating, cooking, and fire-protection equipment, elevators, dumbwaiters, escalators, and other mechanical additions, installations, or systems for the use of buildings and structures shall be installed, located, and maintained so that such equipment and systems will operate satisfactorily and not be a danger to safety, health, or welfare.
B.
X-ray equipment used for medical, dental, or other professional purposes, and shielding of the space where such equipment is used, shall be approved by the health authority having jurisdiction as conforming to the standards established by such authority.