俄军精准打击乌克兰能源枢纽，核电外送中断，全境被迫陷入大停电

Core Insights - A large-scale attack by Russian armed forces targeted Ukraine's energy infrastructure, launching 408 drones and 39 missiles [1][3] - The attack specifically aimed at 750 kV and 330 kV main transmission lines and key substations, which are critical for connecting nuclear power plants to the national grid [1] Group 1 - The assault disrupted the energy supply by damaging the transmission network rather than directly targeting nuclear power plants [3] - Ukraine's energy ministry reported a severe situation, leading to an emergency expansion of power outages across most regions due to damage to backbone nodes of the power grid [3] - The national energy company of Ukraine had to significantly reduce the output of operating nuclear units in the Kyiv control area, entering an "emergency production limit mode" [3] Group 2 - Some nuclear units temporarily disconnected from the grid due to protective measures triggered by severe fluctuations in grid frequency, resulting in extreme electricity shortages across the country [3] - The Director General of the International Atomic Energy Agency (IAEA) confirmed that military activities led to reduced power output from Ukrainian nuclear plants due to damage to substations and disrupted transmission lines [3] - The IAEA chief called for maximum restraint from all parties, emphasizing that the deteriorating energy system situation poses a substantial challenge to global nuclear safety [3]