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巨大的发展 1949年时,电力工业十分落后,全国发电装机容量只有185万千瓦,发电量只有43亿千瓦时,均位居世界第25位,人均用电量只有9千瓦时。当时全国没有一个超高压电网,除东北仅有一条220千伏线路和几条154千伏线路,以及京津唐和台湾省建有规模不大的地区高压电网和上海建有33千伏及以下电压等级的电网外,其它电网大多是以城市为供电中心的孤立电厂和供电网。
Huge development In 1949, the power industry was very backward. The installed capacity of power generation in the country was only 1.85 million kilowatts, and the power generation capacity was only 4.3 billion kwh, ranking the 25th in the world. The per capita electricity consumption was only 9 kwh. At that time, there was no UHV power grid in the country. Except for northeast China, there was only one 220 kV line and several 154 kV lines, and Beijing-Tianjin-Tangshan and Taiwan Province had small-scale high-voltage power grids and Shanghai had 33 kV and below. Outside the voltage level of the power grid, most of the other power grids are isolated power plants and power grids with the city as the power supply center.