Is it true or false that unbroken bus way length shall not be extended through drywall?

The statement that unbroken busway length shall not be extended through drywall is false. In general, busway systems are designed for specific applications, and their installation must comply with applicable electrical codes and standards. While drywall is not typically a suitable medium for the extension of unbroken busway lengths, there may be conditions under which busways can be installed through drywall or similar non-conductive materials, so long as they comply with manufacturer specifications and relevant electrical codes.

This can include situations where busways are run through ceilings or walls with appropriate protection and support to maintain safety and performance, as long as the installation does not compromise the system's integrity or safety. Thus, the answer is false because there are scenarios where unbroken busway lengths may be permitted to pass through drywall, provided that all other safety and compliance regulations are met.