Monte Carlo simulation of laser-triggered flashover in air condition

The experimental platform of laser-triggered surface flashover in pulsed voltage has been built up in the laboratory, and then the experiment of laser-triggered surface flashover was carried out using nylon columned insulators. On this basis, the laser-triggered surface flashover of nylon was simulated by Monte Carlo method, and the delay time of flashover was obtained with different laser energy densities. The simulation result shows that delay time decreases with laser energy density increasing, indicating an increase of the number of electrons in this process. The trend of simulation and experiment is consistent, verifying the mechanism of laser-triggered flashover.