These heating cables are extremely safe. These are special heating cables in which electrical conductors which are copper and the heating medium which is Polymer Graphite are different. They have a very specific property that the resistance of the heating material increases with the increasing temperature and at a certain value; they trip altogether. That is why these cables are called "Tracing Cables" or "Self Regulating Cables". Therefore; there is no chance of cable getting overheated or getting damaged. Plus there are layers of insulation, armour and outer cover. The free ends and cold connection ends are effectively sealed with high quality material and sophisticated processes. These cables have many safety certifications including electrical, mechanical and water submergence. There is absolutely no doubt over the safety factor of Underfloor Heating Cables.