Heating Cable

Detailed introduction to heating cables

1.Classification

Heating cables mainly include two types: single conduction heating cables and double conduction heating cables. A single conductor heating cable enters through a "cold wire", is connected in series to a "hot wire", and then leads out through a "cold wire" to form a circuit; The double conduction heating cable is entered by a "cold wire", connected in series to a "hot wire", and then returned by another "cold wire" inside the cable, with both ends at one end.

2.Structure and Materials

The structure of heating cables usually includes the following parts:

❶Resistance alloy wire core: As a heat source, it is the core part of heating cables.

❷High temperature resistant insulation layer: High purity, high-temperature, and fused crystalline magnesium oxide is usually used as a thermal insulation material to ensure that the cable can still work normally at high temperatures.

❸Grounding wire: such as tinned copper core grounding wire, used to improve the safety performance of cables.

❹Metal shielding layer: such as aluminum metal shielding layer, used to prevent electromagnetic radiation and interference.

❺Outer sheath: Seamless continuous stainless steel or copper tube is used as the sheath to enhance the corrosion resistance and mechanical strength of the cable. In places with strong corrosive effects, PE or low smoke halogen-free jackets can be added.

3.Performance characteristics

❶Pressure resistance and seismic resistance: Heating cables have high pressure resistance and seismic resistance, and can work stably in harsh environments.

❷High impermeability: The outer sheath made of special materials has good sealing performance, preventing the invasion of moisture and corrosive substances.

❸Radiation and high temperature resistance: able to withstand high radiation and temperature, suitable for heating and insulation in high-temperature environments.

❹Anti corrosion and explosion-proof: Made of corrosion-resistant materials, suitable for places with corrosive gases or liquids.

❺Long service life: Due to the optimization of material selection and process manufacturing, the service life of heating cables is longer.

4.Application scope

Heating cables are widely used in the following fields:

❶Living heating: such as underfloor heating systems, which provide a warm and comfortable environment indoors by radiating heat from the ground.

❷Plant cultivation: In a greenhouse or greenhouse, used to maintain appropriate temperature and humidity to promote plant growth.

❸Pipeline insulation: insulation is applied to pipelines in industries such as petroleum, chemical, and natural gas to prevent the medium inside the pipeline from freezing or increasing viscosity due to low temperature.

❹Snow melting and deicing: used for melting snow and deicing on roads, bridges, airport runways, and other places to ensure smooth traffic.

5.Matters needing attention

When using heating cables, the following points should be noted:

❶Avoid repeated crushing, bending, and twisting:

To prevent cable damage from affecting its service life.

❷Do not immerse in water or be exposed to rain: to prevent the insulation performance of the cable from deteriorating and causing leakage.

❸One end is connected to the power supply, and the other end is strictly prohibited from short circuiting the wire core:Ensure safe use of cables.

❹Sealed firmly: The cable joints should be sealed firmly to prevent moisture and corrosive substances from entering.