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High-Quality 5/16 8.0mm Copper Conductor Cable - FEP/ETFE Insulation from China Suppliers & Factory
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5/16 8.0 mm
,MONOCONDUCTOR, AWG 15
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Made with high-quality Copper Conductor for optimal conductivity and durability.
FEP Insulation ensures excellent thermal stability and chemical resistance.
ETFE Insulation offers enhanced protection against environmental factors.
Inner Armor Wires provide additional layer of shielding, ensuring reliability.
Outer Armor Wires offer robust protection against external mechanical stress.
This premium product is manufactured in China by trusted suppliers and factories, ensuring that you receive high-quality electrical components designed for optimal performance.
,| Parameter | Metric SI | Imperial US |
|---|---|---|
| Construction | ||
| Copper Construction | 19 × 0.37 mm | 19 × 0.0146" |
| Insulation (FEP) | 2.85 mm | 0.1122" |
| Insulation (ETFE) | 3.81 mm | 0.1496" |
| Number and Size of Wires | — | — |
| Inner Armor | 12 × 1.11 mm | 12 × 0.0437" |
| Outer Armor | 18 × 1.11 mm | 18 × 0.0437" |
| Average Wire Breaking Strength | — | — |
| Inner Armor | 1970 N | 442 lbs |
| Outer Armor | 1970 N | 442 lbs |
| Physical | ||
| Cable Diameter | 8.0 mm +0.13 / −0.05 mm | 0.3150" +0.0051" / −0.0019" |
| Cable Weight in Air | 281 g/km | 189 lbs/kft |
| 1 hr. Max Temp | 260 ℃ | 500 °F |
| 8 hr. Max Temp | 232 ℃ | 450 °F |
| Cont. Max Temp | 204 ℃ | 400 °F |
| Mechanical | ||
| Cable Breaking Strength | 55 kN | 12,300 lbs |
| Maximum Suggested Working Tension | 27.5 kN | 6,150 lbs |
| Minimum Shave Diameter | 450 mm | 18" |
| Cable Stretch Coefficient | 1.35 m/km/5kN | 1.2 ft/kft/klbs |
| Electrical | ||
| Voltage Rating | 1500 VDC | 1500 VDC |
| Insulation Resistance | 15,000 MΩ·km | 50,000 MΩ·kft |
| Resistance Typical @ 20 ℃ | 9.2 Ω/km | 2.8 Ω/kft |
| Capacitance @ 1 kHz | 190 pF/m | 58 pF/ft |
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Frequently Asked Questions
Q
What type of insulation materials are used in this cable, and why are both FEP and ETFE used?
This cable uses both FEP (Fluorinated Ethylene Propylene) and ETFE (Ethylene Tetrafluoroethylene) insulation layers. FEP provides excellent chemical resistance and flexibility, with an insulated diameter of 2.85 mm, while ETFE offers superior mechanical toughness and higher temperature resistance at 3.81 mm. Together, they ensure both chemical inertness and structural durability in demanding downhole environments.
Q
What is the maximum operating temperature of this cable, and how does it vary with exposure time?
The cable supports three temperature ratings depending on exposure duration: up to 260 °C (500 °F) for 1 hour, 232 °C (450 °F) for 8 hours, and a continuous maximum of 204 °C (400 °F). These ratings allow operators to plan both short-term high-heat events and long-term continuous deployment accordingly.
Q
What is the cable's breaking strength, and what working tension is recommended for safe operation?
The cable has a total breaking strength of 55 kN (12,300 lbs). For safe and reliable operation, the maximum suggested working tension is 27.5 kN (6,150 lbs), which represents exactly 50% of the breaking strength. Operating within this limit ensures a conservative safety factor and prolongs the service life of the cable.
Q
What voltage rating and insulation resistance does this cable offer for electrical performance?
The cable is rated at 1500 VDC, suitable for high-voltage downhole tool applications. Its insulation resistance is exceptionally high at 15,000 MΩ·km (50,000 MΩ·kft), ensuring minimal leakage current and excellent signal integrity even under elevated temperature and pressure conditions.
Q
What is the minimum shave (sheave) diameter required for this cable, and why does it matter?
The minimum shave diameter for this cable is 450 mm (18 inches). Using a sheave smaller than this recommendation can cause excessive bending stress on the armor wires and conductor, leading to premature fatigue, insulation damage, or structural failure. Always ensure winch and pulley systems comply with this specification during deployment and retrieval.
Q
How is the cable armor constructed, and what breaking strength does each armor layer provide?
The cable features a double-armor construction: an inner armor of 12 wires × 1.11 mm diameter and an outer armor of 18 wires × 1.11 mm diameter. Each individual armor wire has an average breaking strength of 1970 N (442 lbs). The multi-layer armor design distributes tensile load effectively, providing robust mechanical protection against the stresses encountered during deep well operations.