Chapter Summary Continued
Common mode problems are dangerous because a wiring error can electrify a component, such as the chassis of a computer, that normally would not have an electrical current.
Normal mode problems involve the neutral and hot wires. AC power filters and/or power supplies usually handle normal mode problems, so the problems are not typically a safety threat.
Static electricity is a naturally occurring form of electricity that can destroy sensitive electronic components.
An electrostatic discharge (ESD) can occur when the person comes in contact with conductors. ESD is especially detrimental to semiconductors.