What is the most vulnerable part of electric equipment?

The cord is considered the most vulnerable part of electric equipment because it is often exposed to wear and tear from regular use, environmental conditions, and physical stress. Cords can become frayed, cracked, or damaged, which poses a risk of electrical shock or short circuits. Unlike other components, such as the switch or plug, which are typically more protected or less frequently handled, the cord is subject to the most physical manipulation and can easily be tripped over or yanked. This makes it crucial to regularly inspect cords for any signs of damage or deterioration to ensure safe operation of the electrical equipment.

Additionally, while switches, fuses, and plugs are also important and can fail under certain circumstances, they are generally more robust and less exposed compared to cords, which experience direct contact and frequent movement.