Relay control apparatus, electrical system, relay control method, apparatus, and medium

A relay control apparatus comprising:

• a relay control board configured to selectively forward a control signal to an electrical appliance according to a refrigerant leakage signal associated with a refrigerant to control an operating condition of the electrical appliance associated with the refrigerant, the refrigerant leakage signal being generated in response to leakage of the refrigerant.

A relay control method comprising:

• detecting a concentration of a refrigerant in a current environment;
• and
• selectively forwarding, in response to the concentration of the refrigerant being greater than a predetermined concentration, a control signal to an electrical appliance to control an operating condition of the electrical appliance associated with the refrigerant.