In cold weather, this scourge is the freezing of underground pipelines. Frozen pipes in the basement of the accident and ensure the water shortages. If the pipes do not heat in the winter may have ice caps, increase the viscosity of liquids transported by pipelines, and the flow area of the cold shrink. Today, in order to avoid freezing pipes in the basement, has successfully applied a heating system using electric heating cables.
When installing heating cables, it is important to consider that are located in basements pipes are subjected to powerful low temperatures. It is important to provide them with maximum insulation. This may be mineral wool, fiberglass, foam plastic and other materials having good thermal insulation properties. Insulation itself must be protected from moisture, since it destroys the insulating layer. This is done by means of waterproofing.
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These cables can heat the internal pipes in basements and exterior piping, underground and above-ground system of water pipes, drainage pipes and fire hydrants.
The main types of heating cables, which are used in heating located in the basement pipes - this zone, resistance and self-regulating cables.
If the system freeze protection is made of resistive heating cables, be sure to install the thermostat, since resistance cables can not, in contrast to the self-adjusting as necessary to raise or lower the temperature. Using a heating system pipe thermostat will help control the cost of electricity and prevent overheating of the cable itself.
Self-regulating heating cables give off heat to the conductive strands, surrounded by plastic. This, coupled with the semiconductor matrix, allows the self-regulating cable, justify its name - to raise and lower the heat, independently in response to changes in temperature of the environment, and to do it locally: more heat on the area where the temperature is lower, and reduce the heat where the temperature environment is high. Therefore, even if self-regulating cables intersects itself, they will never burn out, and the variance of electric power cables are controlled independently.
Therefore, heating pipes, especially in places such as basements, it is better to use the self-regulating cables - it's easier, safer and more economical.
The systems management circuitry on the basis of the heating cables should also be sure to include (in case of damage to the insulation) block the differential protection.
