We often see that the colors of the three wires in the three-core plug wire are different. So what are the functions of the three wires?
For three core wires: L pole:It is connected to the live wire Commonly used core wire colors: black or tea (some companies call it brown or brown), these two colors are commonly used in American regulations and Japanese regulations, and European regulations use brown (brown, brown) N pole: connect to the neutral line Commonly used core wire colors: white, red, light blue. These three colors are commonly used in American and Japanese standards, and light blue is used in Europe. E pole: ground wire Commonly used core wire colors: green or green between yellow (some companies call it yellow between green or green and yellow, yellow-green). These two colors are commonly used in American regulations, Japanese regulations and European regulations, and many companies use green between green and yellow.
When we buy power cords and cables, we can often clearly see the abbreviations of some English words such as RVVP and RVV printed on the power cords and cables. Many people want to understand their meanings. In fact, they respectively indicate the type and purpose of each power cord and cable. RVV: PVC insulated flexible cable Uses: power cords, signal lines, household appliances, small electric tools, instruments and power lighting, etc. Derivative model: RVVS, the stranded pitch encryption of the core wire of this model is generally used in broadcast systems. RVVP: Copper core PVC insulated shielded PVC sheathed flexible cable, voltage 300V/300V 2-24 core. RVS and RVB are suitable for household appliances, small electric tools, instruments, meters and power lighting to connect power lines. RVS can also be used for broadcast lines or instead of RVV lines. RVB can replace gold and silver wires when the requirements are not high. RG: Physically foamed polyethylene insulated access network cable is used to transmit data and analog signals in the coaxial optical fiber hybrid network (HFC). This is an American standard and is similar to the international SYWV series. UTP: LAN cable use, transmission of telephone, computer data, fire prevention, anti-theft security system, intelligent building information network. Commonly used UTP CAT 5, UTP CAT 5E shielded model is STP. KVVP: Polyvinyl chloride sheathed braided shielded cable is used for signal transmission, control and measurement of electrical appliances, meters, and power distribution devices. AVVR: Use of PVC sheathed flexible cable for installation, signal and control. Such as access control signal, control, pan-tilt control, etc. RV, RVP: PVC insulated cables, PVC shielded cables. Mainly used for equipment. BV, RVP: Polyvinyl chloride insulated cable, use, suitable for fixed wiring of electrical instruments and power lighting, affordable price and low resistance. It can be considered in many situations where the Power Supply is connected. RIB: speaker cable (fever cable, gold and silver cable), some audio cable models are often marked with "6N", "7N", and its meaning is to indicate the purity of the fever cable made of metal materials.
HYV and HYA data communication cables (indoor and outdoor) are telephone lines, which are used to connect telephone communications and radio equipment, as well as the wiring of the junction box of the telephone wiring network. SYWV (Y), SYKV cable TV, broadband network special cable structure: (coaxial cable) single oxygen-free round copper wire + physical foamed polyethylene (insulation) + (tinned wire + aluminum) + polyvinyl chloride (poly Vinyl). Remarks: 1. Does not have heat-resistant plastic compounds such as natural rubber compounds. 2. Plastic compound with heat resistance, such as resin butadiene rubber compound.
Best regards,
Mandy Huang.
May 08, 2021