What are conductors required to maintain regarding their installation in roots according to NEC Article 300.13?

In the context of NEC Article 300.13, conductors are required to maintain a mechanical connection at all terminations to ensure reliability and safety in electrical installations. This requirement serves several critical functions: it helps prevent loose connections that can lead to high resistance, overheating, and potential fire hazards. Mechanical connections at terminations create a stable and secure electrical path, significantly reducing the risk of intermittent problems or failures related to poor connectivity.

The other options do not align with the specific requirements outlined in NEC Article 300. For instance, while the insulation of conductors (mentioned in one of the options) is indeed important, it is primarily covered in different sections of the NEC and does not directly speak to the requirement of maintaining mechanical connections. Likewise, stipulations about bends and periodic assessments for resistance address different aspects of conductor installation and maintenance, which are not the focus of Article 300.13. Thus, the emphasis on mechanical connections in terminations is central to ensuring electrical integrity and safety in installations.