Tubing Encapsulated Conductor
Tubing Encapsulated Conductor (TEC) is used to supply power downhole to the gauge and transfer the digital data uphole. The copper conductor is double insulated and the protected by a 6.35mm OD stainless steel tube with a wall thickness of 0.71mm. A coating of 11mm x 11mm Polypropylene is used to add additional protect the tube wire.
TEC Cable Specifications
| Outside Diameter | 6.35mm (0.25in) |
| Wall Thickness | 0.71mm (0.028in) |
| Conductor Accuracy | #16 AWG Copper |
| Insulation | FEP and Polypropylene |
| Tube Material | 316L Stainless Steel |
| Encapsulation | 11mm Square Polypropylene |
| External Collapse Pressure | 30,000 psi |
| Cable Weight | 220 kg/km |
| Temperature Rating | 150°C |
| DC Resistance at 20°C | 13.45 ohms/km |
| Voltage Rating | 1000 V DC |
| Capacitance | 90 pf/m |
| Isolation Resistance | 3500 megohms-km min |
