A hipot test is primarily used to evaluate which characteristic of electrical equipment?

A hipot test is primarily used to evaluate which characteristic of electrical equipment?

• A. Electrical insulation between conductors
• B. Mechanical integrity of the enclosure
• C. Insulation resistance under high potential stress
• D. Electrical noise in control circuits

Answer: (C)

A hipot test checks the insulation’s ability to withstand a high voltage without breaking down. It applies a voltage well above normal operating levels between conductors and to ground, looking for dielectric breakdown or excessive leakage current. The point is to assess insulation under high potential stress, not the mechanical strength of the enclosure, noiser performance in control circuits, or insulation resistance at normal operating voltage. If the insulation holds up under that elevated voltage, it indicates good dielectric strength and insulation integrity.

A hipot test checks the insulation’s ability to withstand a high voltage without breaking down. It applies a voltage well above normal operating levels between conductors and to ground, looking for dielectric breakdown or excessive leakage current. The point is to assess insulation under high potential stress, not the mechanical strength of the enclosure, noiser performance in control circuits, or insulation resistance at normal operating voltage. If the insulation holds up under that elevated voltage, it indicates good dielectric strength and insulation integrity.