What are the main colors of the power cord? What are the features and functions of the application areas of power cords?

The color of power cords is mainly regulated by the International Electrotechnical Commission (IEC) and national standards. The following are some common power cord colors and what they represent:
1. Black: commonly used in the alternating current (AC) power supply cables, representing the fire line (Live) or phase line.
2. White or gray: usually indicates the neutral line (Neutral).
3. Green or green-yellow dual-color: on behalf of the ground (Ground) or protection line.
It is important to note that different regions and may have slightly different regulations on the color of the power cord. Therefore, when using power cords, it is better to refer to local electrical standards and regulations.
Power cords are widely used in various fields and industries and have the following characteristics, features and functions:
1. Power transmission: The power cord is mainly used to transmit electrical energy from the power source to the equipment or system to supply it with the required power. It can withstand specific currents and voltages to ensure reliable transmission of electrical energy.
2. Safety and protection: Power cords usually come with a protective layer or jacket to provide insulation and protection to ensure personal safety and proper operation of the equipment. The protective layer can reduce the risk of electric shock and provide a certain degree of fire protection and protection.
3. Marking and identification: Color coding of power cords can be used to mark and identify different types of cables and cords. This assists in identification and differentiation during installation, maintenance and troubleshooting.
4. Environmental adaptability: Power cords need to adapt to different environmental conditions and workplaces. For example, some power cords are resistant to heat, moisture, oil or corrosion to adapt to the harsh working environment.
5. EMI suppression: Some power cords come with a shield or insulation material to suppress the effects of electromagnetic interference and ensure stable signal transmission. This is particularly important in applications that require high-quality signals, such as audio, video and data transmission.
6. Reliability and durability: Power cords need to have good reliability and durability to meet the challenges of long-term use and various external stresses. Good manufacturing quality, appropriate material selection and strict quality control can ensure the stability and durability of the power cord.
7. Compliance and certification: Power cords usually need to comply with relevant international and industry standards, such as IEC standards and safety certification requirements. This ensures the safety, reliability and compatibility of the power cord to meet market requirements.
In summary, power cords play an important role in various industries and applications as a key component of power transmission. Its color coding and characteristics can ensure reliable transmission of power and safe operation of equipment to meet the needs of different fields.

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