Flexible cords connected to which component of tracking PV systems must comply with Article 400?

Flexible cords used in tracking photovoltaic (PV) systems must comply with Article 400 because this article outlines the requirements for flexible cords and cables. In the context of PV systems, the moving parts of a tracker require flexible cords to facilitate movement while ensuring safe electrical connections. Flexible cords are specifically intended for applications where cables must flex or move regularly, making compliance with the standards set forth in Article 400 essential to maintain the integrity and safety of these connections.

In other contexts, for instance, battery banks and inverter connections, while important, don't specifically emphasize the need for flexibility as crucial as that required for moving parts. Similarly, monitoring equipment may not have the same movement requirement as components directly related to the motion of the tracking system. Therefore, flexible cords connected to moving parts must adhere to Article 400 to ensure they can withstand the mechanical stresses and environmental conditions encountered during operation.