BELT PLY FOR A VEHICLE TYRE

The invention relates to a belt layer for a vehicle pneumatic tire, in particular for a commercial vehicle tire, wherein the belt layer comprises steel cords of the construction 1+N, with N=4 or N=5 with a single core filament and four or five sheath filaments, wherein the sheath filaments all contact the core filament (1) on the outside and have equal diameters (D). The invention is characterized in that the cord construction is an open cord construction and that the ratio of the breaking energy of the core filament (1) to the breaking energy of a sheath filament (2) corresponds to 1.1 to 1.5.