Heating cables – Longline (HTP1F)
Longline (HTP1F) is a constant wattage series resistance heating cable with a single conductor. It is supplied in multiples of three cables to be configured as a three-phase heating system.
It is used for frost protection or temperature maintenance of long pipelines, up to 5 km in length. A typical application is frost protection for aerial water pipelines.
The heating cable (HTP1F) minimizes the number of electrical feed points, thereby reducing the costs of power wiring and distribution equipment. Circuits are often fed only at the ends of the pipeline.
The number of heating cables and the size of their conductors are adjusted to deliver the required thermal output according to the circuit length. HTP1F heating cables are connected directly to the three-phase network or to a step-up transformer.
Thanks to its flat ribbon construction, the HTP1F provides a large heating surface, allowing lower operating temperatures compared to equivalent round conductor designs, which improves system safety and service life.
Please contact us for any specific requirements.
HTP1F series resistance heating cable provides effective frost protection and temperature maintenance for long-distance pipelines, up to 5 km. Its flat ribbon design optimizes thermal performance (up to 23 W/m), reduces power supply costs, and extends system lifespan thanks to a lower operating temperature.
Key benefits:
-Circuit lengths up to 5 km
-Single power supply point
-Reduced electrical distribution costs
-Up to 600 VAC
-Maximum allowable temperature: 125 °C
Product specification – Maximum allowable temperature: 125 °C (257 °F)
Longline (HTP1F) heating cable is available in linear power ratings of 10, 15, and 23 W/m. |
Maximum permissible temperature (de-energized) | 125°C (257°F) |
Minimum Installation Temperature | -40°C (-40°F) |
Minimum Operating Temperature | -60°C (-76°F) |
Power Supply | Up to 600V 3-Phase |
Cable Dimensions | HTP1F-CT 22.0 x 8.0mm +/- 0.5mm (16mm²) |
Weight kg/100 m | HTP1F-CT - 65.0 kg (16mm²) |
Minimum Bending Radius | 75mm (16mm²) |
Maximum Temperatures of the Heated Medium (°C)
Rated Heating Power (W/m) | HTP1F | HTP1F-C | HTP1F-CT |
|---|---|---|---|
10 | 112 | 109 | 100 |
15 | 94 | 95 | 85 |
23 | 78 | 80 | 70 |
Surface Temperature Limits According to EN 50014 Standard | |||
HTP1F heating cable is specifically designed for freeze protection or temperature maintenance of long pipelines, whether above ground or buried. Its three-phase system architecture allows circuits up to 5 km to be powered from a single point, significantly reducing the need for power cabling and associated costs.
Thanks to its flat ribbon construction, it provides a large heating surface, limiting operating temperature while delivering high linear power (up to 23 W/m). Available in 10, 15, and 23 W/m versions and rated up to 600 VAC, the Longline (HTP1F) meets the demands of many industrial sectors.
Example applications:
-Long-distance pipelines
-Buried piping
-Three-phase heating networks
Longline Heating Cables (HTP1F) are used in the following sectors:
-Chemical & Petrochemical
-Water Industry and Wastewater Treatment
-Energy Sector
-Transport and Infrastructure
-Machine Manufacturing
-Construction and Civil Engineering
-Food Industry
-Various Industries
This list is not exhaustive.
