main switchboard definition

main switchboard means the switchboard which is directly supplied by the main source of electrical power and is intended to distribute electrical energy to the ship’s services;
main switchboard means a switchboard directly supplied by the main source of electrical power and intended to distribute electrical energy;
main switchboard means a switchboard that is directly supplied by the main source of electrical power and is intended to distribute electrical energy during normal operational and habitable condition;

More Definitions of main switchboard

main switchboard means that switchboard on a consumer's premises which provides the greatest degree of control of the supply of electricity to that installation, but does not
main switchboard means a switchboard which is directly supplied by the
main switchboard means that switchboard on a consumer's premises which provides the greatest degree of control of the supply of electricity to that installation, but does not include any panel that is used exclusively for the mounting of a meter or control device, which is part of the supply system, or the master switch;