Which of the following is a common cause of electrical hazards in the workplace?

Overloaded circuits are a common cause of electrical hazards in the workplace because they occur when too much current is drawn through a circuit, exceeding its designed capacity. This can result in overheating, which poses a risk of electrical fires and equipment damage. Overloaded circuits can also lead to circuit breaker tripping or fuse blowing, indicating an unsafe condition that can potentially harm employees or create unsafe working environments. Proper electrical load management is essential to ensure safety and to prevent these hazardous situations from occurring.

In contrast, proper grounding, double insulation, and routine inspections are safety measures designed to prevent electrical hazards. Proper grounding helps redirect excess electricity, reducing the risk of shock or fire. Double insulation provides an extra layer of protection against electric shock for tools and appliances. Routine inspections help to detect any potential electrical issues before they lead to hazards, ensuring that equipment is functioning safely. Hence, these options are preventative measures rather than causes of hazards.