Series connection constant wattage heating cable
HGC Series connection constant wattage heating cable use the core conductor as the heating element,when the core conductor connect to power supply,the core conductor will send out joule heat,because unit length constant power heating cableˊs current and resistance is equal to all length heating cable,so the heating value of each unit is equally.not result in the power of terminal end is lower than beginning end with the increasing length of heating cable.So this type is suitable for long pipeline and large diameter pipelineˊs heat tracing and heat preservation.Power supply by one power point.
Product specification and model
Series connection constant wattage heating cable
Structure
HGC Series connection constant wattage heating cable used to freeze protection,heat preservation for long pipelines.Application such as factory Zone 1,Zone 2 explosive gas atmosphere area.
1.Conductor core 2. B.C.D.FEP insulation layer and outer sheath
3.E. metal braid 4. F.FEP Strengthen sheath
Product specification and technical features
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Part Number
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Core conductorˊs structure
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Cross section mm²
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Resistance M/km 20℃
|
|
HGC-(6-30)/(1.2.3)J-3.0
|
19x0.45
|
3
|
5.83
|
|
HGC-(6-30)/(1.2.3)J-4.0
|
19x0.52
|
4
|
4.87
|
|
HGC-(6-30)/(1.2.3)J-5.0
|
19x0.58
|
5
|
3.52
|
|
HGC-(30-50)/(1.2.3)J-6.0
|
19x0.64
|
6
|
2.93
|
|
HGC-(30-50)/(1.2.3)J-7.0
|
19x0.69
|
7
|
2.51
|
Rated voltage:110V-120V,220V-380V,660V,1100V
Max exposure temperature:205℃
Insulation resistance:≥750M km
Dielectric strength:2xnominal voltage +2500V
Max withstang temperature:F-205 centigrade degree,P-260 centigrade degree
Insulation material:FEP/PFA
Approvals:CE EX
Notes:Longline heating is required to ensure that liquids are transported effectively and safely over long distances.In the absence of longline heating,the following problems could result in significant environm ental and properly losses:
- Liquids becoming too viscous
- Gases condensing
- Liquids freezing resulting in catastrophic pipe failures
Longline heating applications have several challenges,such as:
- Large pipe diameters
- Elevation changes along the length
- Remote locations
- Lack of power availability along the length
For pre-insulated pipes,additional challenges include:
- Alignment of channels
- Lack of insulation at the pipe joints
- Pulling long length of cable through the channels
- Lack of accessibility of connection kits
But HGC can solve all these problems!
