Urban power supply is the guarantee necessary for the normal functioning of the city, and its stability and reliability have a direct impact on urban life and economic development. Underground electricity networks are the core of urban power supply and bear the important responsibility of energy transmission. These cables are usually deployed in underground tunnels. In the city, the electricity network plays an essential role.
What is an Underground Cable Tunnel?
Underground cable tunnels are used to accommodate different types of cables and provide safe and reliable underground laying space for cable routes. This is the key to the interconnection of underground electrical networks.
These tunnels are generally located at 30 meters underground and must therefore withstand high pressures. To guarantee the solidity of the tunnel structure, we generally use materials with high mechanical resistance, such as concrete and steel. Support the tunnel structure. Protect internal cable trays.
The transmission of electric currents generates heat. Therefore, the design of the ventilation system is particularly important in the construction of underground tunnels, because it effectively regulates the temperature and humidity inside the tunnel in order to maintain normal operating conditions of the cable lines.
Underground cable tunnel are usually constructed of concrete, made of steel or other durable materials. The tunnel structure must be strong and stable enough to withstand the pressures and loads of the underground environment and to protect the cables from external interference..
Underground Cable and Underground Fiber Optic Cable
In the underground electrical networks, The underground electrical tunnel can be used not only for cables, but also for fiber optic cables. The functioning of modern cities requires not only a power supply, but also network connectivity.
In an underground environment, there is humidity, corruption and other environmental factors due to the impact. This is why underground cable are generally made of XLPE to ensure their durability and reliability..
Faced with the enormous demand for bandwidth in cities for homes, businesses, etc., THE fiber optic cables are ideal to respond to this request. However, fiber optic structures are very fragile and require adequate protection measures.
Underground tunnels can provide excellent protection. Not only can they accommodate cables, but they can also provide good protection to fiber optic cables.
With the exception of the personnel concerned, staff in general are not accessible, which reduces the risk of human harm. In case of wind, rain or snow, fiber optic cables run underground more stable and safer.
Advantages of Underground Power Supply
Traditional electricity poles do not offer sufficient resistance to natural disasters such as typhoons, and are easily damaged, which leads to power outages. Underground cables effectively reduce these effects and therefore extend their lifespan..
As cities grow, the space available for urban use is gradually shrinking. Underground power grids can provide more space for urban development. Furthermore, they do not affect buildings on the ground or traffic, which makes urban planning neater and more beautiful.
For the high voltage electricity transmission over long distances, the use of overhead cables is more appropriate. But in the cities, power transmission lines are complex. Laying overhead cables is not only unsightly, it is also affected by the weight of the cable, and the transmission power of a single overhead line is limited.
The underground cable network avoids this problem. Underground cables allow the use of cables with a larger section and greater transmission capacity. In general, the transmission capacity of an underground cable can replace 20 airlines.
Urban construction requires long-term planning. Building underground cable tunnels is expensive, but taking into account urban development in the coming decades, underground cable tunnels will be very practical.
Impact of Underground Electricity Networks on Urban Development
When cities build underground electricity networks, they must take into account the development needs of the city as well as future planning objectives.
The development of underground electrical networks must take into account the layout of the city as well as functional considerations in order to ensure consistency with the general direction of development of the city..
Underground electrical networks facilitate the development of urban space on the surface. They avoid complex overhead lines in the streets and improve the aesthetics of the city.
Underground cable tunnels are very convenient in terms of maintenance and overhaul, which reduces operating costs after long-term commissioning of underground cables.
Overall, underground electrical networks have become an important and indispensable element of modern cities, which not only makes it possible to highlight the construction capacity of the city's public facilities, but also to attract more inhabitants and external investment, thus promoting the economic development and social progress of the city.
Smart Underground Electricity Networks
With the digitalization of the world, intelligent development. The construction of an underground electricity network is combined with a smart grid. Creation of an efficient and automated electrical network. Advantage in power distribution optimization and power fault analysis.
Improved energy coordination : smart grid technology can adjust power distribution at the right time based on the time of day, of the region, electrical charge and other factors. This precise regulation guarantees the stability of the power supply while minimizing energy waste. Make rational use of electricity.
Troubleshooting : install sensors in the cable line. In case of damage, leaks or other defects in the cable. The sensor will send fault information to maintenance personnel in time. This feedback mechanism significantly reduces fault detection time and improves fault handling capability.
Defect prediction : based on analysis of daily cable operation data, combined with fault information. Early warning of defects can be achieved, and potential defects can be detected in time. Protect the stable operation of the power system.
Résumé
Underground electricity networks have been key to the development process of the urban electricity network. It has great advantages in terms of security, intelligence and urban appearance.
With technological development of the underground electrical network, it will be integrated into more industries in the future. It will further improve the practical attributes of modern society.