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What are the uses of non-metallic box type substations in urban streets

source：www.taicredit.cn  |  Release time：2025年06月17日
       Non metallic box type substations, with their characteristics of corrosion resistance, light weight, and good insulation, are widely used in urban street scenes and can effectively meet the diverse needs of urban power grid construction. The following is an analysis of its main application scenarios and advantages in urban streets:
1、 The core node of urban street distribution network
1. Power supply for residential and commercial areas
       Application scenario: In densely populated areas such as urban residential areas, office buildings, and shopping malls, non-metallic box type substations can be used as terminal distribution equipment to convert high voltage electricity into residential electricity (220V/380V).
       Advantages: Non metallic materials such as glass fiber reinforced plastic and epoxy resin composite materials have excellent corrosion resistance, which can resist the erosion of rainwater, moisture, and industrial waste gas in urban streets, extend equipment life, and reduce maintenance costs.
2. Power supply for municipal public facilities
       Application scenario: Provide power support for street lighting, traffic signal lights, public charging stations, municipal monitoring equipment, etc.
       Advantages: Strong insulation, avoiding the risk of electric leakage and ensuring pedestrian safety; The weight is 30% -50% lighter than a metal box, making it easy to install quickly on narrow streets or complex terrain, reducing the impact of construction on traffic.
2、 Adapting to the Landscape and Environmental Protection Needs of Urban Environment
1. "Invisible" power supply equipment integrated with urban landscape
       Appearance design: The non-metallic box can be personalized sprayed or disguised, such as simulating street flower beds, billboards, street lamp bases, etc., to reduce damage to the urban landscape.
       Case: In the streets of historical and cultural districts or tourist attractions, non-metallic box type substations are often designed in the form of antique stone benches, landscape sculptures, etc., which not only meet the power supply needs but also meet the requirements of environmental aesthetics.
2. Low noise and environmental characteristics
       Noise reduction advantage: The sound insulation effect of non-metallic materials is better than that of metals. With internal sound insulation design, the operating noise can be controlled below 55 decibels (equivalent to normal conversation volume), avoiding noise pollution to residents around the street.
       Environmental attributes: There is no heavy metal pollution during the production process, and the waste can be recycled and reused, which meets the requirements of urban green infrastructure.
3、 Flexible solutions for dealing with complex urban environments
1. Narrow space and special scenario applications
       Narrow streets and underground spaces: In narrow streets or sidewalks in old urban areas, non-metallic box type substations can adopt compact designs (reducing volume by 20% -30% compared to traditional metal box substations), or even be installed underground (only exposing the ground operation panel), saving ground space.
       Wet and rainy areas: Non metallic materials have excellent moisture resistance, which can reduce equipment failures caused by humidity and improve power supply reliability in the streets of rainy cities in the south.
2. Disaster resistance and emergency power supply
       Typhoon and earthquake resistance: Non metallic enclosures have high impact resistance and can withstand natural disasters such as typhoons and earthquakes in coastal cities or earthquake prone areas, ensuring emergency power supply for streets (such as shelters, medical points, and other key locations).
4、 Adaptability of Intelligence and Urban Power Grid Upgrade
1. Integrated intelligent monitoring system
       Function: Non metallic box type substations can be equipped with intelligent distribution terminals (DTUs), which can monitor voltage, current, temperature and other parameters in real time through IoT technology, remotely report fault information, and facilitate digital management of urban street power grids by power departments.
       Advantages: Non metallic materials do not affect wireless signal transmission, there is no need to install additional signal enhancement devices, and the intelligent transformation process is simplified.
2. Integrate new energy with distributed power grids
       Application scenario: In streets equipped with solar street lights and electric vehicle charging piles, non-metallic box type substations can flexibly connect to distributed power sources, supporting an integrated system of "photovoltaic+energy storage+distribution", and promoting the transformation of urban green energy.
5、 The convenience advantage of construction and maintenance
1. Quick installation and maintenance free features
       Construction efficiency: The non-metallic box type substation adopts modular prefabrication production, which shortens the on-site installation time by more than 50% compared to traditional metal box type substations, reduces the time occupied by street construction, and minimizes the impact on traffic and residents' lives.
       Maintenance cost: No need for regular anti rust and anti-corrosion treatment (such as painting), reducing maintenance workload by 60%, especially suitable for densely populated urban street scenes, avoiding frequent power outages for maintenance.

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