GB/T 11024.2-2001 is the second part of the standard for shunt capacitors for AC power systems with nominal voltages above 1kV, which stipulates durability test requirements. The standard specifies test conditions, procedures and evaluation criteria. By simulating long-term operating conditions, the tolerance and performance Stability of capacitors under the action of voltage, temperature and other factors are tested to ensure their reliable operation in high voltage AC power systems, providing key technical basis for mass control of products.