The invention relates to a method and a
system for heating and melting
snow and ice on the
road surface under the current surface effect. The
system comprises an alternating-current power supply, an input cable, a three-phase
transformer, a three-phase balancer, an electrical switch, a
temperature control device, a
snow and
ice melting sensor, a power supply terminal box, highly-ferromagnetic iron pipes, a transitional connecting tube, a high temperature wire, an electrical switch (3), a U-shaped bent-
pipe wire penetrating part, an end terminal box, a grounding protector and a
cathode protector. A U-shaped surface action
heating element which is formed by connecting a plurality U-shaped highly-ferromagnetic iron pipes is energized under the surface effect and the proximity effect to efficiently emit heat to rapidly melt the
snow and the ice on the
road surface. The U-shaped highly-ferromagnetic iron pipes are buried in the teinforced concrete or
asphalt road surface. The U-shaped surface action
heating element has high
mechanical strength and quite long service life, can be used permanently, is not easy to be subjected to the wire disconnection, is very easy to repair when being damaged, needs only one power supply point, can not affect the three-phase power supply balance, can be heated uniformly, adjusted randomly in temperature and constructed and installed conveniently with least labor, has high degree of
automation, does not need electric insulation, is safe, reliable and economical and can not pollute the environment.