Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

Meaning and Causes of Wire BurnoutWire burning out typically refers to a situation where wires lose their ability to function normally due to changes in their physical or chemical properties caused by overheating or other reasons. This may involve the melting of wire insulation, damage to conductors, or failure of connection points, among other issues.The specific situation that led to the wire burning out1.Overload UseWhen the current carried by a wire exceeds its design capacity, it can cause

The following types of cables can mainly be used to supply power to consumers through overhead cables:I. Overhead insulated conductorsCharacteristicsOverhead insulated conductors are based on traditional overhead bare conductors and have an insulating layer added. This insulating layer is usually made of materials such as polyethylene or cross-linked polyethylene and has good insulating properties and weather resistance.Compared with overhead bare conductors, overhead insulated conductors can ef

Adding an extra wire (or conductor) to a parallel circuit has several notable effects on the circuit: Enhanced Current Capacity: One of the main characteristics of a parallel circuit is that it allows more current to flow through. When an additional wire is added, the overall current-carrying capacity increases. This is because the parallel circuit provides more paths for the current to flow through, thereby reducing the overall resistance and allowing more current to pass. Voltage remains const

Why are transmission lines high in voltage and low in current?During the process of power transmission, high-voltage transmission is often adopted to reduce energy loss. The specific reasons are as follows: Reduce Current: According to Ohm's Law (P = UI), when transmitting the same power, the higher the voltage, the lower the current. Lower current means that the resistive losses in the transmission lines (P = I²R) will also be reduced. Reduce Heat Losses: High-voltage transmission can significa

Laying method of 0.6/1kV crosslinked polyethylene insulated power cable bridge

6~35kV crosslinked polyethylene insulated power cable directly buried laying method

450/750V PVC insulated wire laying method

When high-voltage power lines come into contact with the ground, sparks are generated primarily due to the discharge phenomenon caused by the potential difference. Here is a detailed explanation:Potential DifferenceHigh-voltage power lines typically carry thousands of volts or even higher. The ground is considered a reference point with zero potential. When a high-voltage power line comes into contact with the ground or another grounded object, a significant potential difference (voltage differe

A precise electrical two-core concentric cable is a type of cable with specific structural and performance characteristics.I. Structural characteristicsConcentric structureThis cable consists of two conductors. Usually, one is located at the center and is called the inner conductor, and the other surrounds the inner conductor and is called the outer conductor. The inner and outer conductors are arranged concentrically, which gives the cable good symmetry and stability. For example, in some high-

I. Differences between solid wires and stranded wires(I) Structural aspectsSolid wireComposed of a single strand of metal conductor, usually made of conductive materials such as copper or aluminum. For example, common solid copper wires can have diameters ranging from a few millimeters to a fraction of a millimeter.Has a simple structure with a continuous conductor and no gaps.Stranded wireFormed by twisting multiple fine metal strands together. For example, a common stranded wire may consist of