Metal raceways, cable armor, and other metal enclosures shall be _______ joined together into a continuous electric conductor to provide effective electrical continuity.

Metal raceways, cable armor, and other metal enclosures are required to be metallically joined together to ensure effective electrical continuity. This means that the joining method must facilitate a reliable conduction path for electrical currents, which is crucial for both functionality and safety. Metallic joining ensures that there is minimal resistance between the connections, helping to prevent issues such as overheating or arcing that can occur if the connections are not properly made.

Effective electrical continuity is essential in any electrical installation to ensure proper grounding and bonding, which also mitigates the risk of electrical shock hazards. By using metallic connections, the integrity of the electrical system is maintained, allowing it to perform as intended.