Leakage detection apparatus and method and cabinet system

A cabinet system, comprising:

• a plurality of nodes with each node using a liquid cooling apparatus for heat dissipation;
• and
• a leakage detection apparatus comprising a detection circuit and a monitoring device,
• wherein the detection circuit is coupled to the plurality of nodes and comprises a plurality of branch circuits for leakage detection of a plurality of liquid cooling apparatuses in the plurality of nodes, each branch circuit comprises a water detection cable sensor, a first branch and a second branch, the first branch and the second branch are two conducting wires of the water detection cable sensor;
• and
• wherein the monitoring device is coupled to the detection circuit and configured to monitor a leakage status of the liquid cooling apparatus in each node, and determine, when leakage occurs in a faulty liquid cooling apparatus, a faulty node where the faulty liquid cooling apparatus resides.