1. Explain: Single phase constant wattage is applied in frost and maintenance
temp of pipeline and instrument. Max maintaining temperature is
about 150. It may be used in hazardous areas. 2. Construction and principle: Twin bus wires with extruded high-temp fluoropolymer primary
insulation, a resistance wire heating element is spirally wrapped
around primary insulation contacting alternate bus wires at
specific intervbla forming heating zone. The twin bus wires supply
voltage along the entire length of heating cable. 3. Performance and Rating Data: | Catalog Number | Rated Power(W/m) | Max Length(m) | Max Fluid Temp | Color of Jacket | | Ordinary Range | Strengthen Range | | RDP 2 -J 3 -10 | RDP 2 (Q)-J 3 -10 | 10 | 210 | 150°C | Black | | RDP 2 -J 3 -20 | RDP 2 (Q)-J 3 -20 | 20 | 180 | 120°C | Red | | RDP 2 -J 3 -30 | RDP 2 (Q)-J 3 -30 | 30 | 150 | 90°C | Blue | | RDP 2 -J 3 -40 | RDP 2 (Q)-J 3 -40 | 40 | 140 | 65°C | Orange |
maximum maintenance temperature:maximum maintenance fluid flow temp
in pipe not allow to exceed it Crated Voltage:220V
Normal Insulation Resistance≥20M
Dielectric Test:-2000V 50Hz/1min
Insulation Material:F 46
Maximum Withstand Temperature:205° | Explosion-proof Mark:eT 3
Type of Protection:IP54
Explosion-proof Certification of Inspection:GYB94389
Size (including braid & oversheath):6.3×9.5mm |
4. Production Feature and Applications: The constant watt heating cable provides a constant power output
each zone. The longer heating cable to be used, the greater total
power output. It is flexible and can be cut at any point to fit
pipeline and installation easy. The overbraid provides a conductive
ground path and increase strength and heat transfer. RDP2 single phase constant heating cables are used to maintaining
fluid flow in pipe, valve and pump or maintain pipeline
temperature. Such as: a. Low solidity point fluid pipeline
b. Liquid pipeline requires temp-control
c. Water pipe and valve in cold areas
d. Coastal platform pipe
e. Pipeline instrumentation
f. Oil exploit tree of wellhead
g. Concrete prefabricated components | 
