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双循环
工程造价管控水平是造价管理能力的重要体现，本文针对河南省2015～2019年110～500千伏输变电工程样本，开展全省输变电工程造价水平及变动原因分析，梳理了近几年输变电工程造价水平变化态势及相关费用占比情况，从价格因素、技术因素、外部环境因素三个方面详细研究了上述因素对输变电工程造价变化的影响，指出材料、地方建材及人工费价格的提高，大容量主变、大截面导线及户内站应用比例的上升，以及政策及技术处理等外部费用的增加，是河南省输变电工程造价水平总体小幅上升的主要原因。
<<The level of project cost management and control is an important manifestation of cost management capabilities. Based on the samples of 110-500 kV transmission and transformation projects in Henan Province from 2015 to 2019，this article conducts the analysis of cost levels and change reasons in the power transmission and transformation projects，summarizes the changing situation of the cost level and the proportion of relevant expenses of power transmission and transformation projects in recent years.The impact of price factors，technical factors，and external environmental factors on changes in the cost of power transmission and transformation projects has been studied in detail.The increase in prices of materials，local building materials and labor costs，as well as the increase usage of large-capacity main transformers，large cross-section wires，and indoor power stations，as well as the increase in external costs such as policy and technical processing，are the main reasons for the slight increase in the overall cost of power transmission and transformation projects in Henan Province.
<<| Keywords： | Affecting FactorsCost AnalysisSubstation EngineeringLine EngineeringTypical Technical Solutions |
