Longline HTP1F Heating Cables – Tmax 125 °C – L = 5 km
The 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 freeze protection or temperature maintenance of long pipelines, up to 5 km. A typical application is the freeze protection of above-ground water pipelines.
HTP1F heating cable reduces the number of required power feeds, thereby lowering supply cabling and distribution equipment costs. Circuits are often powered only at the pipeline ends.
The number of heating cables and the conductor size are selected to deliver the required thermal output according to the circuit length.
HTP1F heating cables are connected directly to the three-phase supply or via a step-up transformer.
Thanks to its flat-tape construction, the HTP1F provides a large heating surface, resulting in lower operating temperatures compared to equivalent round conductor designs. This improves both system safety and service life.
Please contact us for any specific requirements.
Technical information
Applications
Industries
Downloads
HTP1F series resistance heating cable provides effective freeze protection and temperature maintenance for long-distance pipelines up to 5 km. Its flat-tape design optimises thermal performance (up to 23 W/m), reduces power supply costs, and extends system service life thanks to lower operating temperatures.
Key Benefits:
-Circuit length up to 5 km
-Single power feed point
-Reduced electrical distribution costs
-Up to 600 VAC
-Maximum Allowable Exposure Temperature: 125 °C
Product Specification – Maximum Allowable Exposure Temperature: 125 °C
The Longline (HTP1F) heating cable is available with linear power outputs of 10, 15 and 23 W/m. |
Maximum Allowable Exposure Temperature (de-energized) | 125°C |
Minimum Installation Temperature | -40°C |
Minimum Operating Temperature | -60°C |
Power Supply | Up to 600 V – Three-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 Heated Equipment Temperatures (°C)
Nominal Heating Power (W/m) | HTP1F | HTP1F-C | HTP1F-CT |
|---|---|---|---|
10 | 112 | 109 | 100 |
15 | 94 | 95 | 85 |
23 | 78 | 80 | 70 |
Surface Temperature Limits in accordance with EN 50014 | |||
The HTP1F heating cable is specifically designed for freeze protection or temperature maintenance of long pipelines, whether above ground or buried.
Application example: Long pipelines (up to several kilometres) used in refineries, power plants, district heating networks, or storage facilities must be maintained at temperature to ensure fluid circulation.
Problem example: High heat losses, limited power feed points at pipe ends, and the risk of circuit failure make a reliable and durable solution essential.
The HTP1F Solution
The HTP1F constant wattage heating cable (Longline),
Longline (HTP1F) Heating Cables are used in the following sectors:
-Chemical & Petrochemical
-Water and Wastewater Industry
-Energy Sector
-Transport and Infrastructure
-Machine Building
-Construction and Civil Engineering
-Food & Beverage Industry
-General Industry
This list is not exhaustive.
