Lockouts are devices used to prevent the accidental energization of equipment. They are typically used in conjunction with tagouts, which are labels that identify the equipment that is being locked out. Lockouts and tagouts are an important safety procedure to prevent electrical accidents. Surge suppressors are devices that protect electronic equipment from power surges. They work by absorbing the excess voltage from a power surge and diverting it to the ground. Surge suppressors are an important way to protect electronic equipment from damage caused by power surges.