Heating cable pipes from freezing in winter
During the summer, the water supply of a country house does not cause major problems: water is calm comes from the well to the house, but the winter can promorznut pipe and the water supply to the house stop.
Even laying pipes below the soil freezing is not a 100% guarantee preservation of the pipeline during the winter. The reasons are two.
- It occurs with abnormally low winter temperatures;
- I point water supply to the house - the most vulnerable to freezing place;
As in the famous joke of this situation is the "two ways":
- Method one - insulate pipes polystyrene;
- The second way - to buy a heating cable.
This article will focus namely on the second way - to talk about the installation of the heating cable.
As the cable warms my pipe?
The principle of operation of the heating cable consists in the transformation of electrical energy into heat: passing through a conductive matrix, Electricity heats the metal elements that give off heat pipe and its surroundings space.
How does the heating cable for pipes?
Which heating cable to choose?
And here we are getting to the really serious problem - the problem of selection of the cable. Add some theory to help decide.
There are two types of heating cables:
-
Resistive.
Cables of this type are heated by passing electricity through the metal, here works resistance. The main disadvantage - the cable is heated equally strong regardless of temperature overboard: at least -10, at least - 30, and therefore spend too much electricity. - The self-regulating. As the name implies, this cable may regulate power consumption and respectively the heating temperature due to the temperature sensor and thermostat.
Let's talk about the nuances of
1) When laying the resistive heating cables do not allow their intersection and contact: otherwise they will overheat and will fail.
2) The resistive cable can not be cut, and therefore, it is necessary to buy exactly the length of cable you need.
3) It is better to choose a two-core cable, even though it is more expensive, because single-core cables must be connected to a network round trip, which is inconvenient.