特高压指数下跌2%，成分股多数走低

Group 1 - The ultra-high voltage index declined by 2% on February 5, indicating a downward trend in the sector [1] - Most constituent stocks experienced a drop, with Hengtong Optic-Electric, Zhongtian Technology, Changgao Electric, and Jinpan Technology all falling over 4% [1] - Trina Solar also saw a decrease, with its stock down by 3% [1]