A geometric condition implying energy equality for solutions of 3D Navier-Stokes equation

We prove that every weak solution $u$ to the 3D Navier-Stokes equation that belongs to the class $L^3{L}^{9\mathrm{/}2}$ and $\text{n}u$ belongs to $L^3{L}^{9\mathrm{/}5}$ localy away from a 1/2-H"{o}lder continuous curve in time satisfies the generalized energy equality. In particular every such solution is suitable.