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China 5/16 8.0 mm 3-Conductor Cable Suppliers - AWG 20 with Copper Conductor and FEP Insulation from Factory
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5/16 8.0 mm
,3-CONDUCTOR, AWG 20
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High-Quality Copper Conductor for Enhanced Performance
Premium FEP Insulation for Superior Heat Resistance
Semi-conducting Filler for Improved Signal Integrity
Robust Semi-conducting Shield Layer for Enhanced Protection
Inner Armor Wires Ensuring Durability and Resilience
Outer Armor Wires Providing Additional Layer of Strength
As a leading manufacturer in China, our factory specializes in producing top-quality electrical conductors. Partner with reputable suppliers to ensure you receive products that meet the highest standards of performance and safety. Our commitment to excellence guarantees that you benefit from reliable and efficient electrical solutions.
,| Construction | ||
| Copper Construction | 7×0.32 mm | 7×0.0129" |
| Insulation (FEP) | 1.86 mm | 0.0732" |
| Number and Size of Wires | — | — |
| Inner Armor | 18×0.81 mm | 18×0.0319" |
| Outer Armor | 18×1.11 mm | 18×0.0437" |
| Average Wire Breaking Strength | — | — |
| Inner Armor | 963 N | 216 lbs |
| Outer Armor | 1808 N | 406 lbs |
| Physical | ||
| Cable Diameter | 8.0 mm +0.13 mm / −0.05 mm | 0.3150" +0.0051" / −0.0019" |
| Cable Weight in Air | 265 g/km | 175 lbs/kft |
| 1 hr. Max Temp | 232 ℃ | 450 °F |
| 8 hr. Max Temp | 216 ℃ | 421 °F |
| Cont. Max Temp | 200 ℃ | 392 °F |
| Mechanical | ||
| Cable Breaking Strength | 45 kN | 10,100 lbs |
| Maximum Suggested Working Tension | 22.5 kN | 5,050 lbs |
| Minimum Shave Diameter | 450 mm | 18" |
| Cable Stretch Coefficient | 1.35 m/km/5kN | 1.2 ft/kft/klbs |
| Electrical | ||
| Voltage Rating | 1000 VDC | 1000 VDC |
| Insulation Resistance | 15,000 MΩ·km | 50,000 MΩ·kft |
| Resistance Typical @ 20 ℃ | 33 Ω/km | 10 Ω/kft |
| Capacitance @ 1kHz | 175 pF/m | 53 pF/ft |
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Frequently Asked Questions
Q
What type of insulation material is used in this cable?
A
This cable uses FEP (Fluorinated Ethylene Propylene) insulation with an outer diameter of 1.86 mm (0.0732"). FEP is chosen for its excellent thermal resistance, low dielectric constant, and chemical inertness — making it highly suitable for high-temperature downhole environments.
Q
What is the maximum continuous operating temperature of this cable?
A
The cable is rated at a continuous maximum temperature of 200 ℃ (392 °F). For short-term exposure, it can handle up to 232 ℃ (450 °F) for 1 hour, or 216 ℃ (421 °F) for 8 hours.
Q
What is the cable breaking strength and recommended working tension?
A
The cable has a breaking strength of 45 kN (10,100 lbs). The maximum suggested working tension is 22.5 kN (5,050 lbs), which is 50% of the breaking strength — following standard safety practice for wireline and downhole cable operations.
Q
What is the voltage rating and insulation resistance of the cable?
A
The cable is rated at 1000 VDC. Its insulation resistance is 15,000 MΩ·km (50,000 MΩ·kft), indicating extremely high electrical isolation, which is critical for accurate signal transmission in logging and telemetry applications.
Q
What is the minimum shave (sheave) diameter required for this cable?
A
The minimum sheave diameter is 450 mm (18"). Using a sheave smaller than this minimum may cause excessive bending stress on the armor wires, reducing cable lifespan or leading to premature mechanical failure.
Q
How is the dual-armor construction beneficial compared to single-armor cable?
A
The dual-armor design — with an inner armor (18×0.81 mm, 963 N per wire) and an outer armor (18×1.11 mm, 1808 N per wire) — provides superior tensile strength, abrasion resistance, and protection against wellbore pressure and mechanical damage, making it ideal for deep well and high-tension deployment applications.