In ferrous metal enclosures, how should conductors carrying alternating current be arranged to prevent heating of the surrounding metal?

The arrangement of conductors carrying alternating current in ferrous metal enclosures is crucial to minimize heating effects on the surrounding metal. The correct approach is to utilize induction, which refers to the method where alternating current creates a magnetic field that can induce currents in nearby conductive materials.

When conductors are arranged so that the alternating current does not generate excessive heat in the surrounding metal, it mitigates the risks of overheating and potential damage. Induction allows for a separation that reduces the impact of electromagnetic interference and minimizes the losses that can occur due to eddy currents in the metal enclosure.

Direct contact among the conductors is not advisable as it can lead to increased resistive heating and potential failure points. Decreasing load can reduce heat but does not address the arrangement of conductors specifically. Insulation can provide a barrier but generally is not the primary method for preventing heating in arrangements involving ferrous enclosures. Thus, utilizing induction is an effective strategy for managing heating in these scenarios.