Except as provided in section 81-2108, 81-2110, 81-2112, or 81-2144, no person shall, for another, plan, lay out, or supervise the installation of wiring, apparatus, or equipment for electrical light, heat, power, or other purposes unless he or she is licensed by the board as a Class B electrical contractor, an electrical contractor, a Class A master electrician, or a Class B master electrician.