If any part or circuit operating at how many volts or more cannot be put into an electrically safe work condition, an electrical hazard analysis must be performed?

If any part or circuit operating at how many volts or more cannot be put into an electrically safe work condition, an electrical hazard analysis must be performed?

• A. 50
• B. 25
• C. 100
• D. 120

Answer: (A)

When you can’t place a part or circuit into an electrically safe work condition, and it operates at 50 volts or more, you must perform an electrical hazard analysis before proceeding. The 50-volt level is the threshold at which the risk of electric shock and other electrical hazards becomes significant enough to require a formal assessment of hazards and protective controls. This analysis helps determine whether any work can be done while the equipment remains energized and, if so, what protective measures are needed—such as appropriate PPE, insulated tools, barriers, guarding, and procedures to prevent unexpected energization. The goal is to identify and manage the specific hazards present and to outline the steps that will keep workers safe when ESWC cannot be achieved. The other voltages listed don’t fit the requirement as the minimum threshold in this rule; 50 volts is the defined point at which an electrical hazard analysis is triggered when ESWC cannot be established. Higher voltages still require protections, but the stated rule centers on the 50-volt threshold.

When you can’t place a part or circuit into an electrically safe work condition, and it operates at 50 volts or more, you must perform an electrical hazard analysis before proceeding. The 50-volt level is the threshold at which the risk of electric shock and other electrical hazards becomes significant enough to require a formal assessment of hazards and protective controls.

This analysis helps determine whether any work can be done while the equipment remains energized and, if so, what protective measures are needed—such as appropriate PPE, insulated tools, barriers, guarding, and procedures to prevent unexpected energization. The goal is to identify and manage the specific hazards present and to outline the steps that will keep workers safe when ESWC cannot be achieved.

The other voltages listed don’t fit the requirement as the minimum threshold in this rule; 50 volts is the defined point at which an electrical hazard analysis is triggered when ESWC cannot be established. Higher voltages still require protections, but the stated rule centers on the 50-volt threshold.