GWK-PF (GTGWL, GWKGXW) 15-40w/m electric heating belt

GWK-PF (GTGWL, GWKGXW) 15-40w/m electric heating beltThe construction

（1） Design drawings

Before construction, there should be a complete design drawing, which should include the following information:

1. The line number and power supply point are represented by rectangular grids.

2. The required heating cable model and length for the circuit. (Unit: meters)

3. The required length of heating cable per meter of pipeline length (unit: meter) is the winding coefficient.

4. The length of heating cable required for each valve. (Unit: meters)

5. List of supporting materials and accessories for the heat tracing system.

6. List of accessories for temperature control system.

7. List of materials required for construction.

8. Design considering parameters and specifications of insulation materials used.

（2） Preparation work before construction

(A) Pipeline system

1. The pipeline system and equipment have been constructed.

2. The anti rust and anti-corrosion coating has dried completely.

3. The construction specifications for pipeline systems are consistent with those shown in the design drawings.

4. File off all burrs and sharp corners.

(B) Heating cables and accessories

1. Is there any damage or breakage on the surface of the heating cable.

2. The insulation performance of the heating cable is good (the insulation resistance is required to be 20M when tested with a shaking table at 1000VDC).

3. The model and design requirements of the electric heating belt and all accessories are consistent

Cable structure:

1. Copper core wire: 7 × 0.32, 7 × 0.42, 7 × 0.50, 19 × 0.32

2. Conductive plastic layer: ordinary PTC, flame-retardant PTC, fluorine-containing PTC

3. Insulation layer: modified polyolefin, flame-retardant polyolefin, fluorinated polyolefin, perfluorinated material

4. Shielding layer: Tin plated soft round copper wire/aluminum magnesium alloy wire with a coverage density of 80%

5. Sheath layer: modified polyolefin, flame-retardant polyolefin, fluorinated polyolefin, perfluorinated material

GWK-PF (GTGWL, GWKGXW) 15-40w/m electric heating beltTechnical indicators:

1. Standard colors: Orange, Brown

2. Temperature range: maximum maintenance temperature 105 ℃, maximum surface temperature 105 ℃± 5 ℃, maximum withstand temperature 135 ℃

3. Construction temperature:—5℃

4Operating temperature: -30 ℃

5. Thermal stability: After cycling back and forth 300 times between 10 ℃ and 149 ℃, the cable's heat generation remains above 90%

6. Bending radius: 25.4mm at room temperature of 20 ℃; 35.0mm at low temperature of -30 ℃

7. Insulation resistance: When the cable length is 100m and the ambient temperature is 75 ℃, shake it with a 2500VDC shaker for 1 minute. The minimum insulation resistance (between the wire and the shield) is 3000M Ω

8. Working voltage: 12V 24V 36V 110V 220V 380V

9. Output power at 10 ℃: 25W/m 35W/m 40W/m 45W/m 50W/m 60W/m

10. Shielding layer: Tin plated soft round copper wire, covering a density of 80%

11. Sheath layer: modified polyolefin, flame-retardant polyolefin, fluorinated polyolefin, perfluorinated material