[rho]r is the resistivity of the earthing conductor
The coarse FDTD grid is occupied to simulate the earthing conductor
, the convolution perfectly matched layer (CPML) is used to absorb the late-time reflection [21, 22], and the parallel implement is involved to overcome the memory limit of the serial processor [23-27].
Therefore all metal parts must be bonded to an adequate earth wire which connects all appliances, water and gas pipes to the main earthing conductor
at the consumer unit.
here [i.sub.L](t)--lightning current, A; [R.sub.iE]--resistance of the earthing device; L--inductance of the earthing conductor
with the length of one meter (L [approximately equal to] 1,5 ...