Guidelines for Calculating the Increased Power Supply Capacity of Conductors through Diameter Enlargement - T/SDPEA 14-2019

Scope

Scope: This standard specifies the calculation method for the additional power supply of the conductor expansion project of single radiation lines in the distribution network. This standard applies to the calculation of the additional power supply of the conductor expansion project of single radiation lines in the distribution network; Main technical content: With the continuous implementation of the energy substitution policy and the deepening adjustment of the end-use energy structure, the overall social power demand will further increase. It can be predicted that in the future period, the demand for the transformation and upgrading of distribution network lines will be very huge. Under the background of deepening the market-oriented reform of the power industry, in view of the actual situation of the new generation of distribution network transformation and upgrading projects, it is urgent to innovate the investment and financing models of the distribution network, break through the traditional distribution network transformation project's distribution method mainly based on energy-saving benefits, and pay more attention to the comprehensive benefit distribution after the implementation of the transformation project. The calculation of the additional power supply of the conductor expansion project is an important part of the comprehensive benefit evaluation and analysis of the distribution network upgrade and transformation projects. It is necessary to unify the calculation formula and data sources, and establish unified calculation standards for different scenarios. Since the current national standards, industry standards, enterprise standards, and IEC standards have not unified the above content, in order to provide a reference for the calculation of the additional power supply of the conductor expansion project, this standard is specially formulated. This standard takes the rated capacity of the line as the benchmark, and clarifies the calculation method for t

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