1. Professor, Fire Prevention Dept., State Key Laboratory of Disaster Prevention and Reduction for Power Grid Transmission and Distribution Equipment, Changsha 410007, China.
2. Engineer, Fire Prevention Dept., State Key Laboratory of Disaster Prevention and Reduction for Power Grid Transmission and Distribution Equipment, Changsha 410007, China (corresponding author).
3. Engineer, Fire Prevention Dept., State Key Laboratory of Disaster Prevention and Reduction for Power Grid Transmission and Distribution Equipment, Changsha 410007, China.
4. Senior Engineer, Fire Prevention Dept., State Key Laboratory of Disaster Prevention and Reduction for Power Grid Transmission and Distribution Equipment, Changsha 410007, China.