Running Electrical Wires in Basement Wall of Strapping

I'm finishing my basement and used the technique from This Old House to insulate and build the wood structure of the walls.

It involves attached 2in foam board insulation to the foundation walls along with horizontal and then vertical strapping on top of the horz. I've learned that code wants wires to be 1.5 inches from the front plane where the drywall will be attached. Each strapping is 1in thick, so when the wire is traveling horz. it's probably greater than 1.5 inch away, but when it travels vertically, in needs to travel over the horizontal strapping meaning it's < 1in away. How do I handle this?

Thanks.