What is the correct statement regarding Type AC cable's length limitation in accessible ceilings?

Type AC cable, also known as armored cable, is subject to certain installation practices and restrictions. When it comes to its use in accessible ceilings, the National Electrical Code (NEC) specifies a limitation on the length of Type AC cable. This is established to ensure safety and reduce the risk of damage or fire hazards.

The correct understanding is that Type AC cable is limited to a maximum length of 6 feet in accessible ceilings. This restriction ensures that the cable can adequately support connections without the risk of mechanical damage or stress at junction points. By capping the length, the code promotes efficient installation practices and increases safety by mitigating potential hazards associated with longer stretches of non-conduited wire.

Understanding this limitation is crucial for anyone working with electrical installations, as it dictates how long the cable runs can be in applications where they might be subject to movement or damage, thus reinforcing the importance of following electrical codes for compliance and safety.