Heavy-Duty,Waterproof Tubing Encapsulated Cable for Harsh Environments
Introduction
Tubing Encapsulated Cable (TEC) is a specialized type of cable designed for demanding environments, particularly in the oil and gas sector. It’s essentially a signal cable encased in a protective metal tube, allowing it to withstand harsh conditions like high pressure, abrasion, and temperature fluctuations. TEC products are available in a variety of tube diameters, from 1/8″ to 5/8″, with varying wall thicknesses.
Application
Tubing Encapsulated Cable is commonly used in industries such as oil and gas production, oil well monitoring, power supply for downhole equipment and instrumentation, and pressure sensing equipment.
Construction
- Conductor:
- Annealed bare copper, sizes: 16AWG & 18AWG Solid to BS 6360
- Insulation:
- FEP/ETFE , with blue color or upon customizing
- Filler:
- Expanded polypropylene, with nature color or upon customizing
- Tubing:
- Seamless stainless SS 316L or Alloy 825,Diameter 0.25 inch ( 6.35mm)
- Wall thickness 0.028” (0.71mm), 0.035” (0.89mm), 0.049”(1.24mm) are optional.
- Outer encapsulation:
- Material Polypropylene, Nylon, ETFE are optional, Rectangle Profile : 23x12mm
Encapsulation Material Performance Index
| Material | Temperature Range | Abrasion Resistance | Brines to Resistance | Resistance to Hydrocarbons |
|---|---|---|---|---|
| Nylon | -40℃ – 120℃ | 5 | 3 | 3 |
| Polypropylene | -30℃ – 150℃ | 3 | 5 | 3 |
| TPV | -30℃ – 150℃ | 3 | 5 | 3 |
| PVDF | -40℃ – 150℃ | 4 | 4 | 5 |
| ECTFE | -75℃ – 150℃ | 5 | 5 | 5 |
| ETFE | -110℃ – 150℃ | 5 | 5 | 5 |
| FEP | -110℃ – 200℃ | 3 | 5 | 5 |
| PFA | -110℃ – 250℃ | 3 | 5 | 5 |
Tubing Encapsulated Cable Specification
| Tube Wall Thickness, inch (mm) | 0.28”(0.76) | 0.035” (0.89) | 0.049”(1.24) | ||
|---|---|---|---|---|---|
| Tube Material | SS 316L | Alloy 825 | SS 316L | Alloy 825 | Alloy 825 |
| Continuous maximum operating pressure, psi (bar) | 11500(793) | 13500(931) | 17500(1206) | 18000(1241) | 26000(1793) |
| Collapse pressure, psi (bar) | 17500(1206) | 20000(1379) | 26000(1793) | 27000(1861) | 39000(2689) |
| Armor DC resistance, 68°F (20°C), Ohms/kft. (Ohms/km) | 17.9 (58.8) | 27.3 (89.6) | 15 (49.22) | 22.5 (73.82) | 17.2 (56.43) |
| Capacitance, conductor to tube, pf/ft. (pf/m) | 23.3 (76.45) | 23 (75.46) | 25 (82.03) | 30 (98.43) | 36 (118.12) |
| Conductor DC resistance, 68°F(20°C), Ohms/kft.(Ohms/km) | 16 AWG: 4.45 (14.6) ; 18AWG: 7.07 (23.2) | ||||
| Insulation resistance conductor to tube at 68°F (20°C) MOhms/kft.(MOhms/km) | 884 (2900) | ||||
| Rated voltage | 1000VDC | ||||
| Max operating temperature | Nylon : 275˚F (135˚C) ; Polypropylene : 302˚F (150˚C) ; ETFE : 302˚F (150˚C) | ||||