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1. Source control: the ingenious design of NEMA 6-15P plug
The American UL power cord uses the NEMA 6-15P standard plug, which is designed for 125V, 10A to 15A electrical equipment in North America. Its uniqueness lies in the deep understanding and high attention to electrical safety. The three-core structure of the live wire, neutral wire and ground wire layout is the cornerstone of the safety performance of the QP3C series power cord. The live wire is responsible for transmitting electrical energy to the equipment, the neutral wire is responsible for returning the current to the power supply, and the ground wire is used as a safety loop. Once the equipment leaks electricity, the ground wire can quickly conduct the leaked current to the earth, effectively preventing electric shock accidents. This design not only ensures the stability and efficiency of current transmission, but also builds a safe barrier for users invisibly.
2. Material selection: dual protection of conductivity and insulation
In the selection of cable materials, the QP3C series American UL power cord also spares no effort. It adopts a multi-strand fine copper wire twisting design with 18 AWG/3C specifications. This design not only increases the cross-sectional area of the conductor, reduces resistance, and improves the efficiency of current transmission, but also increases the flexibility and tensile strength of the conductor, making it more adaptable to various complex and changeable use environments. Whether it is bent, twisted or stretched, this power cord can maintain stable performance and ensure the continuity and reliability of power transmission.
In terms of insulating sheath, the QP3C series power cord is even more refined. It uses insulating sheaths made of various materials such as SJT, SJTO, SJTOO, ST, STO, STOO, etc. These materials have been carefully selected and strictly tested, and have excellent wear resistance, oil resistance, and chemical corrosion resistance, and can effectively resist erosion and damage from the external environment. At the same time, these materials also have good insulation properties, which can effectively prevent current from leaking to the outside world even under extreme conditions, thereby avoiding safety hazards such as electric shock and fire.
3. The truth is in the details: all-round consideration of safety protection
In addition to the above core design, the QP3C series power cord also reflects all-round consideration of safety protection in many details. For example, in the production process of the plug, high-precision molds and advanced injection molding processes are used to ensure a close fit between the plug and the socket to prevent heating and sparking caused by poor contact. At the same time, the plug shell is made of flame-retardant material, which can effectively prevent the spread of fire even in extreme cases, giving users more time to escape. The QP3C series power cord is also equipped with an overload protection mechanism. When the current exceeds the rated value, the overload protector will automatically cut off the power supply to prevent safety accidents such as fire caused by overheating of the wire. This design not only protects the safety of the power cord, but also ensures the stable operation of the entire power system.
