Heating Cables – Longline Round (LLR)
Longline Round (LLR) is a constant power series resistance heating cable designed for temperature maintenance or freeze protection of long pipelines.
It is used when circuit lengths exceed the capabilities of parallel resistance self-regulating or constant power heating cables, in order to minimize the number of power feed points. Lengths of several kilometers can be powered from a single point.
Longline Round (LLR) heating cable delivers constant power per linear meter without voltage drop along the entire length. It can be connected in single-phase or three-phase configurations.
Its continuous metallic sheath provides high mechanical strength, reducing the risk of damage and offering better fire resistance than most other heating cables.
Longline Round (LLR) heating cable is certified according to international standards EAC, ATEX, IEC, and CE, for use in hazardous and non-hazardous areas.
Please contact us for any specific requirements.
Longline Round (LLR) heating cable combines performance and durability for freeze protection and temperature maintenance of long pipelines. Capable of covering up to 60 km from a single power feed, it delivers constant power per meter, enhanced mechanical strength thanks to its metallic sheath, and increased safety with a maximum operating temperature of up to 230 °C.
Product Specifications – Maximum Permissible Temperature: 230 °C (446 °F)
The Longline R (LLR) cable is available with various power ratings, up to 60 W/m per cable. |
Maximum Permissible Temperature (de-energized)
| 230°C (446°F) |
Minimum Installation Temperature | -40°C (-40°F) |
Minimum Operating Temperature | -60°C (-76°F) |
Rated Voltage | Jusqu'a 1500V single phase |
Cable Dimensions | See technical datasheet |
Minimum Bending Radius | See technical datasheet |
Maximum temperature of the heated part (°C)
See technical datasheet |
|---|
Surface temperature limits in accordance with standard EN50014 |
Longline Round (LLR) heating cables are designed for long installations where freeze protection or temperature maintenance of pipelines is critical. Ideal for circuits exceeding the range of standard self-regulating cables, they reduce the number of power feed points by allowing lengths of several kilometers from a single power source.
LLR heating cable provides a constant power output per unit length, without voltage drop, and can be configured for single-phase or three-phase power supply. Its continuous metallic sheath ensures excellent mechanical strength and superior fire resistance compared to standard heating cables.
These features make it the ideal solution for demanding environments, with a maximum operating temperature up to 230 °C.
Longline Round (LLR) Heating Cables are used in the following sectors:
-Chemical & Petrochemical
-Oil and Gas Industry
-Water Transportation and Distribution
-Energy Sector
-Machinery Manufacturing
-Construction
-Food Industry
-Various Industries
This list is not exhaustive.
