Shandong Huaning Electric Heating Technology Co., Ltd.
Product Details
1 Application Area
Ultra-long distance heating cable LLHCL is a series of high-efficiency resistance heaters that are used for ultra-long length piping requiring temperature maintenance or freezing protection. Are used to minimize the number of power points, and a single power point can provide long-distance heating of the line.
Straying LLHCL long cables provide constant power per unit length of the circuit, preventing the voltage from decreasing as the circuit length increases. The solid metal shell increases mechanical strength, protects against external damage during laying and provides excellent fire performance compared to most cables.
Product applications: heating and heating of underwater, underground and elevated main pipelines, freezing protection and heating of pipelines in urban engineering corridors and underwater tunnels. Anti-freezing of main fire extinguishing pipelines, etc.
2. Product installation diagram
1. Product installation diagram (1) When the pipeline is pre-manufactured and insulated, three protective grooves are fixed on the pipeline and then foamed and manufactured by the factory; (2) When the pipes are connected in place, make sure, That the protective grooves are aligned to provide a displacement of lla 2mm to protect the heating cable sheath from cutting when the heating cable is pulled through; (3) The length of the protective groove side is 2;
3. Standard electrical heating installation scheme
| 2. LLHCL electric heating system diagram
Extra Long Range Continuous Electric heating belt allows only one cable connection every 1 km, and the metal shielding layer of the system is grounded every 10 Km. |
3. Application examples
Product number
50
| Ultra-long Continuous Electric Heating Belt LLHCL1-AL/Cu-25 # # 25 35 3 LLHCL1-AL/Cu-50 19 × 0.91 7.8
|
Structural Principle
Heat Resistance Heating Cable ℃ Heating circuit length km Maintain temperature °C Supply Voltage kV
Product Parameters |
|
130 |
|
≦ 50 |
|
≤ 120 |
|
1-6
FAQ
Why is the outlet temperature of the electric heater abnormal/the temperature cannot reach the required temperature?
Temperature controller failure, electric heating tube failure, control circuit failure, insufficient air volume or low air pressure inside the heater body, cooling fan damage, etc.
Why does the electric heater fail to heat?
The heating wire is burned out, the internal junction box or external line is broken or loose, the power supply phase is missing, the electric control board is damaged, etc.
Why does abnormal heating occur (overheating or no heating)
Improper design: Exceeding the maximum operating length of the heating cable results in excessive voltage drop and insufficient power. Overlapping heating: Overlapping parallel heating cables, if not self-limiting, can cause burnout due to the combined heat. Insulation issues: Lack of insulation, thin or uneven insulation, leading to heat loss and prolonged operation of the heating cable in low or humid conditions, affecting its efficiency and lifespan.
Causes of short circuits/open circuits
Installation damage: Repeated bending, dragging, or excessive flexing of the heating cable during installation can damage its insulation. Wiring issues: Improper installation of wiring accessories can damage waterproof seals, allowing moisture or corrosive substances to enter and cause short circuits or leakage. External physical damage: Activities such as pipeline maintenance, cross-operation, and equipment lifting can cause physical damage to the heating cable.
Keywords
Ultra-long Heating Cable
Ultra-long Heating Cable
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Classification
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