Aircraft power management system and method for managing power supply in an aircraft

A lavatory of an aircraft, comprising:

• a power management system comprising:
• an electrical power supply input configured to be coupled to an electrical power supply;
• a first power supply bus bar coupled to the power supply input;
• a power management device coupled to the first power supply bus bar;
• at least one primary electrical equipment including a primary load being coupled to the power management device;
• and
• at least one secondary electrical equipment including a secondary load being coupled to the power manager device,
• wherein the power management device is configured to supply electrical power to the at least one secondary electrical equipment, to supply electrical power to the at least one primary electrical equipment, and to deactivate the power supply to the at least one secondary electrical equipment, as long as the at least one primary electrical equipment is supplied with electrical power using a principle of mutually exclusive activation, and
• wherein the secondary electrical equipment is a water heater and wherein the primary electrical equipment is one or more of a rinse valve, a flush valve and a waste flap.

An aircraft seat, comprising:

• a power management system comprising:
• an electrical power supply input configured to be coupled to an electrical power supply;
• a first power supply bus bar coupled to the power supply input;
• a power management device coupled to the first power supply bus bar;
• at least one primary electrical equipment including a primary load being coupled in parallel to the power management device;
• and
• at least one secondary electrical equipment including a secondary load being coupled in parallel to the power manager device,
• wherein the power management device is configured to supply electrical power to the at least one secondary electrical equipment, to supply electrical power to the at least one primary electrical equipment, and to deactivate the power supply to the at least one secondary electrical equipment, as long as the at least one primary electrical equipment is supplied with electrical power using a principle of mutually exclusive activation,
• wherein the secondary electrical equipment is one or more of a power outlet and a comfort device for a passenger, and
• wherein the primary electrical equipment is a seat actuator.