The ornamental design for an electrical powerstrip, as shown and described.
FIG. 1 is a top plan view showing my new design, the phantom line portions forming no part of the design.
FIG. 2 is a front plan view illustrating the present invention.
FIG. 3 is a rear plan view illustrating the present invention; and,
FIG. 4 is an enlarged right-hand side view illustrating the present invention, the phantom line portions forming no part of the design.
No claim is made to the internal configuration of the electrical power strip, nor is any claim made to the bottom view, which is omitted from the drawings.