Withstand Voltage

Withstand Voltage is a common technical parameter term in foreign trade of electrical and electronic products. It refers to the maximum voltage value that a product can withstand under specified conditions (such as applying a specific voltage for a certain period) without breakdown or performance damage, usually expressed in volts (V) or kilovolts (kV). It is commonly used in specification sheets, contract technical annexes, quality inspection reports, and letter of credit requirements for products such as transformers, power adapters, cables, switches, and capacitors. Notes: 1) Test conditions must be specified, such as AC/DC, voltage waveform, duration, and leakage current limit; otherwise disputes may arise. 2) It differs from 'Insulation Voltage,' which emphasizes the withstand capability of insulating materials, while withstand voltage focuses more on the ability of the overall product to pass the test. 3) It differs from 'Rated Voltage,' which is the normal operating voltage, while withstand voltage is the safety limit value. Foreign trade practitioners should specify the exact test standard (e.g., IEC 60950, GB/T 16927) and acceptance criteria in the contract to avoid returns or claims caused by standard differences.