Because the dielectric breakdown voltage (DBV) in all common PCB materials is generally ( X+ O+ j3 H: W5 b) ~. v" f1000 V/mil or higher, dielectric failure between power and ground planes is not a( {* \) z* w. J0 v" ?! J
concern for typical electronic applications where the voltage requirement is usually * G. |2 h9 z4 N! l12 V and lower.