At the time, Sir David believed the reason was that the copper wire mesh had good thermal conductivity, so it conducted away the heat produced by the oil lamp's flame, preventing the flammable gases inside the mine from reaching temperatures exceeding their ignition point, thus suppressing the likelihood of mine explosions.
However, after the emergence of the Faraday cage, which operates on a similar principle, I'm afraid that the explanation for the Davy lamp might need some adjustment. Because if the copper wire mesh indeed absorbed the heat, then as the lamp continued to burn over time, the mesh would eventually be heated to the ignition temperature of the combustible gases. Therefore, I believe that just explaining this problem from a macroscopic thermodynamic perspective is hardly convincing,"