Data cables are any media that allows baseband transmissions (binary 1, 0s) from a transmitter to a receiver. Data cables are used to transmit information between systems such as servers, personal computers and other hardware.
The refrigerator in your kitchen is a made of metal, with metal components and a metal frame. Logically speaking, one should be electrocuted the moment any contact is made with a refrigerator, since metals are such great conductors of electricity.
Few people are familiar with a pre-purchase electrical inspection when buying a new home or unit. It is common to get a pre-purchase building and pest inspection and also regular annual termite inspections with a termite barrier system.