Shielding necessary for a right angle pass next to a power line? - eviltoast

Hi folks, I just found myself in the situation where I am forced to run the main network cable going to the main router through a wall where it passes close to a power line at a 90 degree angle. Is there considerable interference that I should be trying to avoid? The cable is CAT6 unshielded. If there is interference, is there anything that I can add between the wires that would prevent it?

Thanks.