What must candidates determine regarding power requirements?

Candidates must determine the nature of loads, voltage, frequency, and amperage because these factors are critical in ensuring that the power distribution system operates effectively and safely. Understanding the nature of the loads helps to identify whether they are resistive, inductive, or capacitive, which will affect how power is supplied. Voltage and frequency are essential for compatibility with equipment and to ensure it operates as expected. Amperage is necessary to calculate the overall current demand and to size conductors and protective devices properly. Gathering this information allows for appropriate system design and helps prevent overloads and potential hazards.

While the type of cables and connectors can be important for establishing a reliable electrical connection and the age of the system might indicate its condition, these considerations stem from the primary need to understand the electrical requirements effectively. Distance from the power source to the load is also relevant, as it can impact voltage drop and overall efficiency, but it is a secondary consideration once the basic power requirements are established.