ESD stands for electrostatic discharge. Static electricity occurs when two materials with different electric charges come into contact. In some industries, ESD protection of specific areas is required to protect electrical components and equipment. The human body is highly conductive, so when you walk on the floor of the workplace or touch equipment and instruments, you can easily generate static electricity. In many cases, even very small voltages that people cannot feel at all. Therefore, ESD approved overalls and safety shoes must be used to prevent electrical damage.