PROJECT: GUARD BORDER DAMMAM SEA PORT

guard border dammam

Main Distribution Board (MDB) is where the electrical supply is distributed from within the building. The main supply cable comes into the board and is then distributed to the breakers and from there to all the circuits, e.g. lights, plugs. It usually houses all the contact breakers, earth leakage unit and may house items such as a door bell transformer and timers.