Key Testing Items: These encompass critical metrics such as electrical safety, electromagnetic compatibility (EMC), environmental adaptability, and communication protocol compatibility. Electrical safety requirements mandate an insulation resistance exceeding 1 MΩ, a dielectric strength (withstand voltage) test reaching twice the operating voltage, and a ground continuity resistance of less than 0.1 Ω. EMC testing evaluates both radiated emissions and immunity to interference. Environmental adaptability testing covers extreme temperature ranges (from 40°C to 85°C) and humid-heat environments (40°C at 95% relative humidity); the enclosure protection rating must meet or exceed IP55 or IP65. Communication protocol compatibility testing primarily focuses on protocols such as the CAN bus. Additionally, tests are conducted to verify the accuracy of energy consumption data and displayed values, as these directly impact the billing amounts paid by consumers.
Physical Condition Inspection: This primarily involves checking the enclosure for any damage, verifying the integrity of cable interfaces, and ensuring that all markings and labels are clear and legible. The inspection aims to identify and eliminate obvious safety hazards-such as loose connections or signs of material aging-at the interface points.
Core Parameter Monitoring: This involves the real-time recording of data-including current, voltage, power, and total energy delivered-during the charging process to ensure the accuracy of billing calculations.
National Standard Basis: The testing is primarily conducted in accordance with the following standards: GB/T 18487.1-2023 (General Requirements), GB/T 18487.2-2017 (Electromagnetic Compatibility), GB/T 34657.1-2017 (Interoperability), GB 39752-2024 (Safety of Power Supply Equipment), and GB 44263-2024 (Safety of Conductive Charging).
Supplementary Local Standards: Specific supplementary tests are applied based on the type of charging pile: AC charging piles undergo testing for contact current and insulation performance, while DC charging piles are tested for inrush current characteristics and charge termination control mechanisms.
