In a single family residence the space between two floor joists is closed with a galvanized sheet and is used as a return air duct for the furnace. Can a type CATV cable be routed along the face of a joist within this enclosed space?

In a single family residence the space between two floor joists is closed with a galvanized sheet and is used as a return air duct for the furnace. Can a type CATV cable be routed along the face of a joist within this enclosed space?