Technical Standards and Safety Authority (TSSA) G3 Practice Exam

What is the potential hazard of using a damaged power cord?

1. Short circuit

2. Overheating

3. Electrical shock

4. All of the above

The correct answer is: All of the above

Using a damaged power cord poses multiple hazards, which is why the most comprehensive choice is the one that includes all potential risks. A short circuit can occur if the protective insulation of the power cord is compromised, allowing the live wires to touch each other or another conductive material. This can lead to excessive current flow, resulting in sparks and potentially igniting surrounding materials or causing a fire. Overheating can result from the increased resistance at the damaged area of the power cord. When the electrical current cannot flow efficiently due to a break or wear in the cord, it generates heat, which can damage the cord further or create a fire hazard. Lastly, electrical shock is a serious concern with a damaged power cord. If the insulation is broken, live wires may be exposed, creating a risk of contact with anyone using or touching the cord. This can lead to severe injuries or even fatalities. Given these interconnected risks, recognizing that all of these scenarios are valid hazards stemming from the use of a damaged power cord is essential for ensuring safety.