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China Suppliers Factory 7-Conductor AWG 20 Cable with FEP & ETFE Insulation - W7F46F40P-HS-12.04 0.474 12.04 mm
| Construction | ||
| Copper Construction | 7×0.32 mm | 7×0.0126" |
| Insulation (FEP) | 1.65 mm | 0.0649" |
| Insulation (ETFE) | 2.13 mm | 0.0838" |
| Number and Size of Wires | ||
| Inner Armor | 18×1.19 mm | 18×0.0468" |
| Outer Armor | 18×1.66 mm | 18×0.0653" |
| Average Wire Breaking Strength | ||
| Inner Armor | 2170 N | 488 lbs |
| Outer Armor | 4220 N | 948 lbs |
| Physical | ||
| Cable Diameter | 12.04 mm +0.13 mm / −0.05 mm | 0.4740" +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 | ||
| Cable Breaking Strength | 109 kN | 24,500 lbs |
| Maximum Suggested Working Tension | 54.5 kN | 12,250 lbs |
| Minimum Shave Diameter | 670 mm | 26.4" |
| Cable Stretch Coefficient | 0.69 m/km/5kN | 0.61 ft/kft/klbs |
| Electrical | ||
| Voltage Rating | 1200 VDC | 1200 VDC |
| Insulation Resistance | 15,000 MΩ·km | 50,000 MΩ·kft |
| Resistance Typical @ 20 ℃ | 33 Ω/km | 10 Ω/kft |
| Capacitance @ 1 kHz | 160 pF/m | 48 pF/ft |
Frequently Asked Questions
Q
What type of insulation materials are used in this cable, and why are FEP and ETFE chosen?
This cable uses both FEP (Fluorinated Ethylene Propylene) and ETFE (Ethylene Tetrafluoroethylene) insulation. FEP offers excellent chemical resistance and low friction, while ETFE provides superior mechanical strength and heat resistance. Together, they make the cable well-suited for demanding downhole environments where high temperatures and corrosive fluids are present.
Q
What is the maximum continuous operating temperature of this cable?
The cable has a continuous maximum temperature rating of 204 ℃ (400 °F). For shorter durations, it can withstand up to 232 ℃ (450 °F) for 8 hours and up to 260 ℃ (500 °F) for 1 hour, making it suitable for high-temperature well applications.
Q
What is the cable's breaking strength and recommended working tension?
The cable has a total breaking strength of 109 kN (24,500 lbs). The maximum suggested working tension is 54.5 kN (12,250 lbs), which is approximately 50% of the breaking strength — a standard safety margin for ESP and downhole tool deployment operations.
Q
What voltage rating does this cable support, and what is its insulation resistance?
This cable is rated at 1200 VDC. Its insulation resistance is exceptionally high at 15,000 MΩ·km (50,000 MΩ·kft), ensuring minimal electrical leakage and reliable signal or power transmission even in challenging subsurface conditions.
Q
What does the dual-armor construction (inner and outer armor) provide for the cable?
The dual-armor design provides layered mechanical protection. The inner armor (18×1.19 mm, 2170 N breaking strength per wire) protects against crushing and radial forces, while the outer armor (18×1.66 mm, 4220 N breaking strength per wire) handles tensile loads and abrasion. This construction ensures the cable survives the rigors of installation and operation in oil and gas wells.
Q
What is the significance of the minimum shave diameter specification?
The minimum shave diameter of 670 mm (26.4") defines the smallest sheave or pulley wheel over which the cable can safely pass without causing permanent deformation or internal damage. Exceeding this bending limit during deployment or retrieval operations could compromise the armor integrity and reduce the cable's service life. Always use appropriately sized sheaves during installation.












