(A) Notwithstanding anything to the contrary contained in the “International Code Council Inc., 2006 Edition,” or the “Chicago Electrical Code,” service entrance conductors running along the exterior of the building or entering the building shall be enclosed in heavy wall rigid conduit aluminum or galvanized steel or busways.
('69 Code, § 6-72)
(B) Low voltage wiring shall be defined as wires/cables which are used for fire alarms, burglar alarms, telephone, intercoms, security systems, computer cable, CATV, doorbells, thermostats, and the like.
(1) All low voltage wiring shall be “plenum rated”, cables or wires.
(2) Concealed areas.
(a) When concealed low voltage wiring/cables are not required to be in conduit.
(b) Concealed shall be defined as follows:
1. Located within a gypsum board partition.
2. Located within a floor/ceiling assembly in which the ceiling is gypsum board, suspended acoustical ceiling panel and grid, or similar.
3. Located in a tray or runway that is located above the bottom chord or bar joists.
(Ord. O-12-98, passed 3-18-98; amend. Ord. O-9-1999, passed 2-16-99; amend. Ord. O-30-17, passed 9-5-17)