Armored building cable includes insulated wires bundled together and protected by a corrugated metal jacket (called a sheath or cord) that serves as a conduit and provides grounding. General purpose armored building cable provides power for commercial, industrial, and residential applications. Healthcare armored building cable is made for healthcare facilities such as hospitals, dental offices, nursing homes, and outpatient centers. Fire alarm armored building cable withstands harsh environments and is used in plenum spaces and ducts to power fire alarm circuits, smoke detectors, and other fire detection devices.