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RDP2-J4 constant power electric heating cable

Information source: Anhui Cable Group Views: 3492 Release time: 2014-03-01

The working principle structure and application of RDP2-J4 parallel high temperature constant power electric heating cable are the same as RDP2-J3 type, and can be used for the composition of explosive gas mixture T3-T6 in the first and second zones of the plant. The main differences are: high temperature resistance grade: the medium maintains temperature ≤ 205 ℃, the insulating material is high temperature composite material and PFA fluoroplastic. The maximum temperature of the insulation layer material is 260 ° C.

RDP2-J4 parallel high temperature constant power electric heating cable

RDP2-J4 parallel high temperature constant power electric heating cable


Product structure

1. Copper conductor: 7 × 0.50, 19 × 0.32, 19 × 0.37, 19 × 0.42
2. Insulation layer: F46
3. Inner protective layer: perfluorinated material
4, heating wire
5.Sheath
6. Shielding layer: Magnesium alloy soft round wire, covering density 80% (weaving layer is optional: "alloy wire" and "tinned copper wire", different prices and different materials)
7. Sheath layer: PFA

RDP2-J4 Parallel Type High Temperature Constant Power Electric Heating Cable Structure Diagram


Specifications and technical parameters
1. RDP2-J4-30: Rated working voltage 220V, rated power 30W / m, two-way maximum use length of 300m, maximum temperature resistance of 260 ℃, explosion-proof grade EX eⅡT3-T6, insulation resistance (100 meters) ≥50MΩ;


2. RDP2 (Q) -J4-30: rated working voltage 220V, rated power 30W / m, maximum bidirectional use length 300m, maximum temperature resistance 260 ℃, explosion-proof grade EX eⅡT3-T6, insulation resistance (100 meters) ≥ 50MΩ;


3. RDP2-J4-40: rated working voltage 220V, rated power 40W / m, maximum bidirectional use length 260m, maximum temperature resistance 260 ℃, explosion-proof grade EX eⅡT3-T6, insulation resistance (100 meters) ≥50MΩ;


4. RDP2 (Q) -J4-40: Rated working voltage 220V, rated power 40W / m, maximum bidirectional use length 260m, maximum temperature resistance 260 ℃, explosion-proof grade EX eⅡT3-T6, insulation resistance (100 meters) ≥50MΩ;


5. RDP2-J4-50: Rated working voltage 220V, rated power 50W / m, two-way maximum use length 220m, maximum temperature resistance 260 ° C, explosion-proof grade EX eⅡT3-T6, insulation resistance (100 meters) ≥ 50MΩ;


The constant-power parallel high-temperature electric heating cable is connected in parallel across the entire length by multiple heating sections, which can cut the length according to actual needs. When heating, it must be used with a thermostat to accurately set the medium temperature and achieve automatic control. The heat output per unit length is constant. The longer the heating cable used, the greater the total output power. In addition, the electric heating cable is flexible and can be closely attached to the surface of the pipeline. The outer metal shielding net can play a role of heat transfer and heat dissipation, improving the overall strength of the electric heating cable, and it can also be used as a safety ground wire. Therefore, it is widely used in pipelines, valves, small storage tanks, pumps, etc. for heat preservation, antifreeze and heating.

Production process of parallel constant power electric heating cable


The enhanced constant power heating cable is covered with a layer of anticorrosive insulation on the outer layer of the ordinary heating cable. The rest of the structure is the same as that of the ordinary heating cable. The enhanced heating cable has the advantages of the ordinary heating cable It also has the characteristics of high mechanical strength and strong anti-corrosion ability. In addition to the characteristics of the single-phase constant-power electric heating cable, the three-phase constant-power electric heating cable also has the characteristics of long maximum use length, good heating uniformity, and ability to balance the power grid load.

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