In this paper, we review the research progress and application status of DAS technology in power systems, focusing on its applications in areas such as the wind-induced vibration detection of transmission lines, partial discharge monitoring, transformer condition. In this paper, we review the research progress and application status of DAS technology in power systems, focusing on its applications in areas such as the wind-induced vibration detection of transmission lines, partial discharge monitoring, transformer condition. Fiber-optic distributed acoustic sensing (DAS) promises great application prospects in smart grids due to its superior capabilities, including resistance to electromagnetic interference, long-distance coverage, high sensitivity and real-time monitoring. In this paper, we review the research. AP Sensing is your global solution provider for Distributed Temperature Sensing (DTS), Distributed Temperature & Strain Sensing (DTSS), and Distributed Acoustic Sensing (DAS) in power grids. We offer global sales and service through a network of local offices and highly qualified partners. Our. Fiber optic sensors enhance situational awareness in power systems by measuring diverse physical parameters. Fiber optic sensors offer advantages such as immunity to electromagnetic interference and. They can utilize fiber-optic sensors for a wide range of applications, from transformers to natural gas pipelines. These tools provide continuous, real-time data along the entire length of the cable.