A contact finger module for mounting in a high-power switchgear includes at least one contact finger having a contact piece and a flexible contact piece support, which extends along a longitudinal direction and has an attachment end and a contact-making end. The retaining member includes an elongated support post having a first end and an opposite second end. The determination section includes an oscillator, a capacitance detecting section which detects the current flowing through a seat section electrode in order to detect the capacitance, a switching circuit which switches the connection of the capacitance detecting section to the seat section electrode, and a controlling section which outputs a switch control signal. The antenna module includes an antenna and a holder. The conditional approximate sequential dependencies may be expressed as pattern tableaux, i.