A conductor system for use in a surrounding dielectric has a first member with a first conductive surface having a first edge and arranged to be in contact with the surrounding dielectric; a second member arranged such that there is a gap between the first member and the second member at the first edge; and a protector arranged to be partially held in the gap by elastic forces in the protector and having a conductive protector surface arranged to be pressed against the first edge by the elastic forces and arranged to protrude out of the gap on the side of the first member.

A busbar module includes: busbars fixed to battery cells of a battery module; a plate-like flexible circuit body; and a case that accommodates the circuit body and the busbars, in which the circuit body includes a trunk portion extending in a first direction in which the battery cells are arranged, and branch portions branching from the trunk portion and connected to the busbars, the branch portion includes a base portion, a fixed portion fixed to the busbar, and an intermediate portion extending from the base portion to the fixed portion is the first direction, a first end portion of the trunk portion has a first through-hole, and the case includes a first protrusion and locks the first end portion with the first protrusion to hold the circuit body in a state where the intermediate portion is flexurally deformed.

A double busbar device for a vehicle includes a first busbar unit, a second busbar unit, and a summation shielding unit. The first busbar unit includes an insulating first sheath layer element. The second busbar unit includes an insulating second sheath layer element. The first and second busbar units are arranged insulated from one another at least by means of the first and second sheath layer elements and follow a course of the double busbar device. The summation shielding unit includes a tubular shielding element made of solid metal. In a cross-section transverse to the course of the double busbar device, the first and the second busbar units each have their outer surface in mechanical contact with an inner surface of the summation shielding unit over a large area.