Scheme of the heating cable
The operation of self-regulating heating cable for heating pipes is the conversion of electrical energy into thermal energy. A characteristic feature of the wires is that it only takes energy, but does not transmit it. The cord can be cut to the desired length sections, from 20 cm up to tens of meters. It is important to prevent a sharp kinking and physical abrasion of the copper core.
Heating cable
cable self-regulation mechanism is simple. At higher ambient temperature, the resistance conductor matrix increases, and heat generation is reduced. And vice versa. Thus, properly folded wire can not overheat or burn out.
The operating principle of self-regulating cable
Useful advice! Buy the cable with a small margin. If it is not enough to the coil, the part of the pipe still peremerznet, and all the work will come to nothing. A too long wire system chaotically distributed across that face fire.
Placement of the cable inside the tube
types of cable
There are three types of heating cables - a self-regulating, resistance and resistance mineral insulated.
Self-regulating cable is most prevalent among electrical heating systems. Its main advantages:
- the ability to regulate heat transfer without supervision of personnel;
- substantial energy savings.
Placed inside the pipe heating cable
Said cable is classified by power. Produced products from the maximum temperature of 70, 105 and 135 degrees. The degree of heating is dependent on the thickness of the copper cores - greater than the core diameter, the higher the temperature. Energy consumption per meter of wire is approximately 30 watts. Cable recommended to connect via a separate transformer. Heating can be carried out on pipes of metal, plastic, polypropylene.
Application of heating cable for heating of drainpipes
Resistive Cable is heated by a constant and unchanging over the entire length of the resistance. These wires are manufactured sections of a certain length, which can not be changed. Each bay is equipped with a clutch. Self-regulation in the resistive system is possible, therefore, possible large overruns electricity. In addition, the cable to avoid overheating requires constant cleaning of debris.
cable design Raychem T2Blue
Resistive wire with mineral insulation are used to heat objects in aggressive environments - alkaline, acid, salt. Products also may be used in hazardous areas, at high temperatures and loads.
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application
Self-regulating heating cable for heating pipe is used to supply heat for the following objects:
- Pipelines for different purposes, water supply, sewerage networks.
- Processing tanks, cisterns, reservoirs with liquid.
- Area in front of the cottages.
- Roofs and gutters to prevent icing.
- In-floor heating system.
- greenhouses and conservatories.
- Terrariums, aquariums, closed biosphere.
Installation choices for self-regulating cable
internal installation
Cable introduction into the pipe is made, if the communication channel is already underground, and access to it is not. Then place the cable entry into the underground network set saddle with a tap of 1 cm. It screw tubular wire frame and give birth. Pre-length portion to be measured, in need of heating, and fit it on the cable size.
Useful advice! For heating systems, drinking water require products with a tolerance of food availability. Usually cable for water pipes insulated safe fluorine-containing polymer.
It is impossible to carry out the heating cord through the shut-off valves. If the cable insulation will be damaged when using a waterpipe person can be struck by electrocution.
EXAMPLE external mounting of heating cable
Winding extending along the tube or wire, it is necessary to make sure that no creases were stretching, compression, abrasion, transition cord over sharp detail. Imposing a self-regulating heating cable for heating pipes, the site is fully wrapped on top of the adhesive aluminum tape. Ordinary plastic tape is not necessary. Further, any thermal insulator pipe wrapped in the form of half cylinders. Insulation joints compacted mineral wool and sealed with waterproof tape.
The circuit external cable assembly
Useful advice!Prior to installation of cable wrap the pipe with foil. Then the heat is evenly distributed.
The cable runs from the AC. For a more economical use of electricity is necessary to establish relay and a thermostat. Then, if necessary, intelligent automation itself will enable or disable heating.
