to connect sth (up) to the mains
1disconnect — dis|con|nect1 [ˌdıskəˈnekt] v 1.) [T] to remove the supply of power, gas, water etc from a machine or piece of equipment ≠ ↑connect disconnect sth from sth ▪ Always disconnect the machine from the mains first. ▪ The family agreed to disconnect… …
