VV 3 300 1 150 cable is high voltage or not

There are many types and specifications of wires and cables, and it is impossible to generalize. When choosing wires and cables, many factors should be considered, such as brand, category, specification, market, etc. Before choosing to buy, it is necessary to understand and compare in many aspects.

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VV-3*300+1*150 cable represents three PVC insulated PVC sheathed cables with a single-core copper wire with a phase cross-section of 300 square millimeters and a neutral cross-section of 150 square millimeters. It is not a high-voltage cable, and the cross-sectional area of a high-voltage cable is usually not so large.

VV type belongs to the copper core PVC insulated polyethylene sheathed low-voltage power cable, which is suitable for laying in indoor tunnel pipelines, which cannot withstand external forces and can prevent corrosion.

This low-voltage power cable is suitable for indoor tunnel pipeline laying, can not withstand external force, and has anti-corrosion ability.

Summary. Cable: The previous 300 indicates that the rated voltage of the cable core to ground is 300V or the rated voltage between the cable core to the metal shield is 300V; The latter 300 indicates that the rated voltage between the cable core and the cable core is cable:

300 means that the rated voltage between the cable core to the ground is 300V or the rated voltage between the cable core and the metal shield is 300V; 500 indicates that the rated voltage between the cable core and the cable core is 500V.

The difference between 300 300V cable and 300 500V cable.

Cable: The previous 300 indicates that the rated voltage of the cable core to ground is 300V or the rated voltage between the cable core to the metal shield is 300V; The latter 300 indicates that the rated voltage between the cable core and the cable core is the cable: 300 indicates that the rated voltage of the cable core to the ground is 300V or the rated voltage of the electric rock between the cable core and the metal shield is 300V; 500 means that the rated voltage between the cable core and the cable core is 500V.

Summary. 300 indicates that the power frequency voltage between the conductor for which the cable is designed to ground or to the metal shield is rated at 300 volts. 500 indicates that the rated power frequency voltage between the conductors used in the cable design is 500V volts.

What does the 300 500v mark on the cable mean?

300 indicates that the rated power frequency voltage between the conductor used for cable design to ground or the shield of Jinzai Sakura is 300 volts. Nian Jing Cong 500 indicates that the rated power frequency voltage between the conductors used for cable design difference meter is 500V volts.

u0 u=300 500v Layman's Explanation U0 is the voltage of only the line to the ground. u refers to the voltage between phases. The rated voltage is 300 500V, which means that the rated voltage of the line is 300V, and the rated voltage between the phases is 500V

Can the 380v AC motor cable be used.

How does it work? Three-phase live wire, line voltage 380, phase voltage 220Is there a possibility of breakdown of this thread?

Yes. 220<300, 380<500, why does it break down?

When the current is too high.

Of course, there is no possibility of breakdown under normal circumstances.

That's burning, not breakdown. [Compare hearts].

This may be a different understanding! I think burn and break down a concept.

Dear, it's a pleasure to serve you The 3x300 high voltage cable means that the cable has three conductors, each with a cross-sectional area of 300 square millimeters. The diameter of the high-voltage cable is related to the cross-sectional area of the conductor, the insulating material, the conductor material, the voltage and other factors, so it needs to be calculated according to specific parameters. In general, the diameter of a high-voltage cable can be calculated by the following formula:

Diameter (mm) = 2 Conductor outer diameter (mm) + insulation thickness (mm) + sheath thickness (mm) Among them, the conductor outer diameter can be found in the wire and cable industry standard number of dismantling values, insulation thickness and sheath thickness are selected according to specific requirements. Taking a 3x300 high-voltage cable as an example, if it is assumed that its conductor outer diameter is 35 mm, the insulation thickness is 5 mm, and the sheath thickness is 3 mm, the diameter of the cable is about 2 35 mm + 5 mm + 3 mm = about 78 mm. It should be noted that the diameter of high-voltage cables of different models and different factories may be slightly different, so the specific vertical diameter size needs to refer to the relevant specifications or consult wire and cable manufacturers or sellers.

Hope it helps.

300 500V indicates the rated voltage, which is the working voltage level range of the cable. The voltage of the home 220 is a single-phase voltage.

The rated voltage of the power cable is generally above and above, and the control cable is mainly 450 750V. In the production of the same specification of electric disturbance leather cable and control cable made of Li pants, the insulation and sheath thickness of the power cable is thicker than that of the control cable.

300 500V indicates the rated voltage.

When the voltage UN is 220 380V, the rated voltage UO of the core to the ground should meet the level of the grounding mode of the neutral point of the power system and its operation requirements. The rated voltage of the cable is 300 500V for the electrical wiring in the building.

The general rated voltage of wires and control cables is 300 300V, 300 500V, 450 750V; The rated voltage of medium and low voltage power cables is generally equal.

Hello, 300 500v 3*4+1 cable is a commonly used cable, it is composed of three insulated wires and one grounding wire, the diameter of the insulated wire is and, and the diameter of the grounding wire is. The rated voltage of the cable is 300 500V, which can destroy the chain head for the power supply of low-voltage electrical equipment, and can also be used for the power supply of household appliances. The insulating material of the cable is PVC, the heat resistance temperature can reach 70, it has good fire resistance and corrosion resistance, and can be used for a long time.

The rated voltage of the cable is the optimal operating voltage range of this cable.