Copper cables help a new round of rural power grid transformation and upgrading

Copper cables help a new round of rural power grid transformation and upgrading
.
Since February 2016, when the National Development and Reform Commission issued the "Opinions on the Implementation of a New Round of Rural Power Grid Transformation and Upgrading Projects during the 13th Five-Year Plan Period", news of rural grid transformation and upgrading across the country has frequently appeared in the press
.

During the "Twelfth Five-Year Plan" period, China's rural power grid transformation and upgrading achievements have been remarkable, the power grid structure and supply capacity have been greatly improved, and the problem of electricity consumption of the population without electricity has been completely solved, but due to some factors, the problem of unbalanced development still exists
。 Zhu Ming, director of the Department of New and Renewable Energy of the National Energy Administration, once said in an interview that the imbalance between urban and rural and regional development of China's power grid is more prominent, in 2015, the average power outage time of rural households was 47.
6 hours longer than that of cities, the comprehensive voltage qualification rate of the power grid was 4.
99% lower than that of the latter, and the average household distribution capacity was less than half of the urban power grid, especially in some remote and poor areas, and the power supply guarantee was seriously lagging behind
.

The new round of transformation and upgrading is precisely to solve these unsolved problems during the "Twelfth Five-Year Plan" period, further improve the power supply network in rural areas, benefit people's livelihood and promote development
.
The opinions put forward the goals for the transformation and upgrading of agricultural grids in the 13th Five-Year Plan, including: by 2020, the whole coverage of stable and reliable power supply services will be basically achieved in rural areas across the country, the reliability rate of power supply of the power grid will reach 99.
8%, and the comprehensive voltage qualification rate will reach 97.
9%.

Since the goal is higher, the standard cannot be relaxed, and the same is true for the construction of a more stable and reliable power supply network, and one of the most critical points is to choose cables with excellent performance
.

So what kind of cable can better meet the requirements of the new stage of China's power grid transformation and upgrading? Without a doubt, copper cables are the most suitable option
.
From the aspects of performance, energy consumption, environmental impact and other aspects, copper cable can be regarded as a "master"
.
The conductivity of copper is very high, about 1.
57 times that of aluminum, even if it is a hot aluminum alloy cable in China in recent years, only by increasing the cross-sectional area to 1.
6 times of the copper cable can the electrical performance
of the latter.
In addition, copper cable has large ampacity, low voltage loss and failure rate, which is more suitable for the power supply situation of many rural power grid points, long lines and wide areas in China
.

Research by the University of Bath in the United Kingdom shows that the energy consumption of metal aluminum in the production and use process is about 3 times that of copper, it can be seen that copper cable is more in line with the development direction of energy conservation and consumption reduction in today's era, especially the use of agricultural network transformation and upgrading cables in China, especially need to consider reducing energy consumption and environmental impact
.
In addition, copper is a typical "green" metal that can be 100% recyclable and does not affect its mechanical properties
after multiple recycling.

Reliable power supply is an important guarantee for rural basic life and normal production, a new round of rural power grid transformation and upgrading is of great significance to rural people's livelihood, agricultural production and the development of township enterprises will also benefit, the copper cable with good conductivity and high comprehensive evaluation as the main cable for a new round of rural power grid transformation and upgrading will be the best choice
.
During the "Thirteenth Five-Year Plan" period, State Grid and China Southern Power Grid will invest a total of 652.
2 billion yuan to transform and upgrade rural power grids, and it is believed that the huge investment will promote the development of cable and equipment manufacturing industries and drive employment, bringing new vitality
to rural construction and national development.