Why is it important to have a well-lit workspace when conducting electrical measurements?

Having a well-lit workspace when conducting electrical measurements is crucial primarily because it allows for clear visibility of the equipment and any potential hazards in the area. This visibility is essential for safe operations, as it enables the operator to identify and avoid risks, such as live wires, exposed electrical components, or obstructions that could lead to accidents.

Good lighting enhances the operator's ability to read labels, indicators, and readouts on measurement instruments accurately. When operators can see clearly, they are less likely to make mistakes that could lead to unsafe situations or incorrect measurements. In environments where electrical work is being conducted, the ability to see everything clearly can significantly reduce the chances of hazardous incidents.

The other aspects mentioned, such as preventing equipment overheating or avoiding shadows, while potentially relevant, are not the primary reasons driving the importance of illumination during electrical measurements. The focus lies significantly on the safety and visibility factors that good lighting provides.