China’s plug and power cord standards are designed to ensure safety, compatibility, and efficiency in electrical connections for both residential and industrial use. The primary standards are governed by the GB (Guobiao) system, with specific regulations outlined in documents such as GB 2099.1 (for plugs and sockets) and GB 1002 (for dimensional and technical requirements). These standards align with international practices while addressing local needs.
Plug Types
China primarily uses two plug types:
- Type A (ungrounded): A two-flat-pin design with pins measuring 6.3 mm in width and spaced 18.6 mm apart. This is common for low-power devices (e.g., chargers, lamps).
- Type I (grounded): A three-pin configuration featuring two flat pins (angled at 60 degrees) and a vertical grounding pin. This is standard for high-power appliances (e.g., air conditioners, washing machines).
Voltage and Frequency
China operates on a 220–240V AC supply at 50Hz, consistent with most European and Asian countries but differing from North America’s 110–120V system. Devices must match this specification to avoid damage.
Safety Certification
All plugs and power cords sold in China must comply with the CCC (China Compulsory Certification) mark, a mandatory safety accreditation. This ensures products meet strict electrical, fire, and mechanical safety criteria. Non-compliant imports are prohibited.
Design and Construction
- Materials: Plugs and sockets use flame-retardant materials (e.g., polycarbonate) to reduce fire risks.
- Durability: Standards mandate a minimum lifespan of 10,000 insertion cycles.
- Grounding: Type I plugs incorporate a robust grounding system to prevent electric shocks in high-power devices.
Socket Compatibility
Chinese sockets are generally incompatible with foreign plug types (e.g., EU Type C, US Type B) without adapters. However, some modern sockets feature universal designs to accommodate multiple plug types, reflecting increased globalization.
Cord Specifications
Power cords must use copper conductors with cross-sectional areas sized for current capacity (e.g., 0.75 mm² for 6A, 1.5 mm² for 16A). Insulation thickness and flexibility are also regulated to prevent overheating and wear.
Recent Developments
China has begun integrating USB ports into sockets and promoting smart plugs with surge protection and energy-monitoring features. Additionally, revisions to GB standards increasingly emphasize energy efficiency and IoT compatibility.
In summary, China’s plug and power cord standards prioritize safety, durability, and adaptability, balancing domestic requirements with global trends. Understanding these specifications is essential for manufacturers, exporters, and users to ensure compliance and seamless operation.
Post time: Mar-02-2025