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High-Quality 7-Conductor 19 AWG Cable with FEP and ETFE Insulation - China Suppliers & Factory Direct
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0.490 (12.4 mm)
,7-CONDUCTOR, AWG 19
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High-Quality Copper Conductor
Superior Protection
FEP Insulation for Enhanced Performance
ETFE Insulation for Durability
Inner Armor Wires for Added Strength
Outer Armor Wires for Extra Protection
As a trusted China supplier and manufacturer, our factory produces these advanced multi-conductor cables designed to ensure optimal performance and durability in various applications. Choose our products for reliability and quality you can count on.
,Parameter
SI Units
Imperial Units
Construction |
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| Copper Construction | 7×0.36 mm | 7×0.0142" |
| Insulation (FEP & ETFE) | 2.48 mm | 0.0976" |
| Number and Size of Wires | ||
| Inner Armor | 22×1.11 mm | 22×0.0437" |
| Outer Armor | 22×1.44 mm | 22×0.0566" |
| Average Wire Breaking Strength | ||
| Inner Armor | 2272 N | 511 lbs |
| Outer Armor | 3825 N | 860 lbs |
Physical |
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| Cable Diameter | 12.40 mm +0.13 / −0.05 mm | 0.4882" +0.0051" / −0.0019" |
| Cable Weight in Air | 580 kg/km | 390 lbs/kft |
| 1 hr. Max Temp | 260 ℃ | 500 °F |
| 8 hr. Max Temp | 232 ℃ | 450 °F |
| Cont. Max Temp | 204 ℃ | 400 °F |
Mechanical |
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| Cable Breaking Strength | 125 kN | 28,000 lbs |
| Maximum Suggested Working Tension | 62.5 kN | 14,050 lbs |
| Minimum Shave Diameter | 600 mm | 23.6" |
| Cable Stretch Coefficient | 0.75 m/km/5kN | 0.67 ft/kft/klbs |
Electrical |
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| Voltage Rating | 1200 VDC | 1200 VDC |
| Insulation Resistance | 15,000 MΩ·km | 50,000 MΩ·kft |
| Resistance Typical @ 20 ℃ | 26.5 Ω/km | 8.0 Ω/kft |
| Capacitance @ 1 kHz | 160 pF/m | 49 pF/ft |
Frequently Asked Questions
Q
What type of insulation is used in this cable, and why is it suitable for high-temperature environments?
This cable uses FEP (Fluorinated Ethylene Propylene) and ETFE (Ethylene Tetrafluoroethylene) insulation materials. Both are fluoropolymers known for their exceptional thermal stability, chemical resistance, and low dielectric loss. They allow the cable to operate continuously at up to 204 °C (400 °F), making them ideal for demanding downhole and high-temperature logging applications.
Q
What is the maximum operating temperature for continuous use versus short-term exposure?
The cable supports three temperature ratings: a continuous maximum of 204 °C (400 °F) for long-term deployment, 232 °C (450 °F) for up to 8 hours, and a peak of 260 °C (500 °F) for up to 1 hour. Always adhere to these limits to preserve cable integrity and performance.
Q
What is the difference between the inner armor and outer armor in terms of strength and wire size?
The inner armor consists of 22 wires at 1.11 mm diameter, providing an average breaking strength of 2,272 N (511 lbs). The outer armor uses 22 wires at 1.44 mm diameter with a higher breaking strength of 3,825 N (860 lbs). The dual-armor construction significantly increases the overall cable breaking strength to 125 kN (28,000 lbs), offering robust protection during deployment and retrieval.
Q
What is the recommended maximum working tension, and how does it relate to the cable's breaking strength?
The maximum suggested working tension is 62.5 kN (14,050 lbs), which is exactly 50% of the cable's total breaking strength of 125 kN (28,000 lbs). This safety factor of 2:1 is a standard industry practice to ensure the cable is not overstressed during normal operations, accounting for dynamic loads, shock, and wear over time.
Q
What voltage and insulation resistance ratings does this cable carry, and what do they indicate?
The cable is rated at 1,200 VDC and features an insulation resistance of 15,000 MΩ·km (50,000 MΩ·kft). These high values indicate excellent electrical isolation between the conductor and the armor, minimizing leakage current and signal loss — critical for accurate downhole measurements and reliable power transmission in wireline logging tools.
Q
Why is the minimum shave diameter important, and what happens if it is not observed?
The minimum shave (sheave) diameter of 600 mm (23.6") defines the smallest wheel or pulley over which the cable can safely pass without causing excessive bending stress. Using a sheave smaller than this limit can cause permanent deformation of the armor wires, fatigue cracking of the conductors, and degradation of the insulation — ultimately reducing the cable's service life and reliability.