Electric field forming panel used for prefab, and prefab

摘要

An electric field forming panel for use in a prefab capable of arranging a prefab environment so as to cause overcooling and a prefab attached with the electric field forming panel are provided. An electric field forming panel used for a prefab has flexibility and covers a mesh-like planar electrode, a first panel material covering one side of the planar electrode, and the other side of the planar electrode. The panel main body 2 having the second panel material 9 and the insulating material 5 disposed between the first panel material 7 and the planar electrode 3 are provided. In the electric field forming panel, a voltage of 1 kV to 5 kV is applied to the planar electrode 3 with a sinusoidal frequency of 48 Hz to 62 Hz. An electric field space having an electric field strength of 3 kV / m to 15 kV / m is formed, and the environment of the electric field space is adjusted to a state where supercooling occurs in which the water becomes a non-freezing state at a temperature below the freezing point. [Selection] Figure 2