What specific electrical data must be detailed as part of the installation documentation?

The inclusion of amp hours in the installation documentation is essential because this metric provides important information about the capacity of a battery system. Amp hours indicate how much current a battery can supply over a set period of time, which is crucial for understanding both the energy storage capabilities and the expected duration of power supply under specific loads. When planning electrical systems, including an accurate amp hour rating helps ensure that the battery system can meet the energy demands of the equipment it powers, ultimately promoting safety, efficiency, and reliability in operation.

While watt hours, current ratings, and voltage drop are also pertinent electrical data, they serve different purposes. Watt hours relate to the total energy consumed or produced, current ratings define the maximum current a device or system can handle without failing, and voltage drop pertains to the decrease in voltage as current travels through wiring. Each of these metrics provides valuable information, but amp hours specifically address the storage capacity of batteries, making it a critical component in installation documentation.