The 9.65 mm mono conductor wireline cable is a compact armored downhole cable for electrical power and signal transmission in oil and gas well-service operations. Its single 15 AWG copper conductor is protected by a 12-wire inner armor layer and an 18-wire outer armor layer, providing a robust balance of electrical performance, tensile capability, and sheave compatibility.
Key Features
- Single-conductor construction: a 15 AWG, 19-strand copper conductor supports reliable DC transmission.
- Armored for deployment: 12 inner and 18 outer galvanized improved plow steel wires provide the specified load-bearing structure.
- 1500 VDC rating: suitable for compatible mono-conductor wireline systems.
- Two insulation options: polypropylene construction rated to 149°C or FEP/ETFE construction rated to 260°C.
- Service-focused design: 9.65 mm nominal OD and a suggested minimum sheave diameter of 533 mm support practical handling and deployment.
Typical Applications
This mono conductor wireline cable is intended for downhole logging, well intervention, measurement, and other compatible oil and gas operations where an armored single-conductor cable is required. Final cable selection should consider the operating load, temperature, sheave arrangement, well conditions, and the applicable system requirements.

Datasheet: Construction and Electrical Parameters
| Parameter | Specification |
|---|---|
| Cable type | Mono conductor armored wireline cable |
| Nominal outside diameter | 0.380 in / 9.652 mm |
| Outside diameter tolerance | +0.006 / -0.002 in; +0.152 / -0.051 mm |
| Conductor | 15 AWG, 19 × 0.0142 in stranded copper |
| Conductor diameter | 0.071 in / 1.803 mm |
| Insulation outside diameter | 0.183 in / 4.648 mm |
| Inner armor | 12 galvanized improved plow steel wires, 0.0525 in each; armor layer OD 0.275 in / 6.985 mm |
| Outer armor | 18 galvanized improved plow steel wires; armor layer OD 0.380 in / 9.652 mm |
| Rated voltage | 1500 VDC |
| DC conductor resistance at 20°C | 2.8 Ω/kft / 9.2 Ω/km |
| DC armor resistance at 20°C | 1.5 Ω/kft / 4.92 Ω/km |
| Minimum insulation resistance | 1500 MΩ·kft / 457 MΩ·km |
| Suggested minimum sheave diameter | 21 in / 533 mm |
| Breaking strength, ends fixed | 15,000 lb / 6,804 kg |
| Maximum working load | 9,000 lb / 4,082 kg |
| Individual wire breaking strength, inner / outer armor | 585 lb / 265 kg per wire; 585 lb / 265 kg per wire |
| Stretch coefficient | 1.0 ft/kft/klb / 1.125 m/km/5 kN |
Datasheet: Insulation Variant Comparison
| Parameter | 1-P-380-12/18-G-19 | 1-FT-380-12/18-G-19 |
|---|---|---|
| Insulation material | Polypropylene | FEP / ETFE |
| Maximum temperature rating | 300°F / 149°C | 500°F / 260°C |
| Capacitance, conductor to armor | 39 pF/ft / 128 pF/m | 39 pF/ft / 128 pF/m |
| Weight in air | 259 lb/kft / 386 kg/km | 269 lb/kft / 400 kg/km |
| Weight in water | 218 lb/kft / 324 kg/km | 227 lb/kft / 338 kg/km |
Selection Guidance
Use the complete datasheet together with project-specific tension, temperature, and handling requirements. The 149°C polypropylene option and 260°C FEP/ETFE option serve different operating conditions; confirm the required construction before ordering.
Request a Quote
Share your required operating temperature, deployment depth, working load, and termination requirements with the TEBAOFLEX technical team. Request a quote for a configuration review.





