Overhead cable design principles and fault prevention measuresCommon types of overhead cable faults1. Single-phase fault
Single-phase ground fault is the most common of the distribution system and occurs in damp, rainy weather. Single-phase ground not only affects the user's normal power supply, and Hunan Sunshine Electronic schoo...
Fault and preventive measures for overhead cablesOverhead cables and Precaution1. In the distribution line, because the line is horizontally, and a smaller distance between the lines, if the wires within the same span sag are not the same as when the wind is a strong swing of each wire is not the same, leading to the collision caused white wire short circui...
The growth of electricity consumption will drive the growth of overhead cable demandJune 14, 2015, released by the national energy board in May the whole society electricity data show that the month of China's electricity consumption of the whole society to 5103 million kilowatts, an increase of 13.7%, growth rebounded for 4 months, and a two-year hi...
Precautions during overhead cable maintenance testsOverhead cable as part of the power line, its probability of failure is low, safe and reliable, flexible and widely used outlet. But once the failure and maintenance are more difficult, the risk is also large, and therefore the maintenance, and testing should pay special attention.1. Pre-work p...
Eddy's current problem of high current overhead cable in constructionPower cables in the construction, there is a steel bracket, there is with steel protection tube, there is the use of the card and the overhead cable laying, all in the vicinity of power cables formed steel (iron) of a closed loop, it is likely to form a vortex, especially in the la...
Environmental impact of the life cycle of overhead cablesIt is reported that the current business environment is becoming increasingly complex and ever-increasing pressure on the environment background, overhead cable during the entire life cycle environmental impacts in the end how to become a focus of attention. Life cycle assessment is a...
Difference between force cable and overhead cable1. The power cable covers an area of less. Generally buried in soil or lying indoors, the channel, the tunnel, and wire insulation distance is small, no tower covers an area of less, basically doesn't cover surface space. Aerial cable,overhead cables too.
2. Power cable, high reliab...
The influence factors of overhead conductors carrying capacity and carrying capacity testFor overhead conductors carrying capacity is one of the essential parameters of power line calculation of transmission capacity. Wire carrying capacity value is too high, and the conductor fever is serious, leading to the strength of the conduct...
