Introduction
He ESP Cable, Plano, #4 AWG with EPDM Insulation and Lead Jacket It is one of the most important components of a system Bomba Electrosumergible (ESP, Electric Submersible Pump). Designed to transmit electrical energy from the surface to the submerged motor, This type of cable offers excellent performance in oil and gas wells where high temperatures exist., high pressures, corrosive fluids and environments with the presence of hydrogen sulfide (H₂S), carbon dioxide (CO₂) and saline water.
Thanks to its isolation from EPDM (Ethylene Propylene Diene Monomer) and its resistant lead jacket, This cable provides an exceptional combination of electrical resistance, thermal stability and chemical protection. It is widely used in oil extraction operations both on land and on offshore platforms..
For oil companies, Selecting a high quality ESP cable means improving system reliability, reduce downtime and significantly reduce maintenance costs.

What is an ESP Flat Cable?
And ESP Flat Cable is a power cable designed specifically for electrosubmersible pumps. Unlike round cable, Flat design allows for better fit inside the well, especially when the space between tubing and casing is limited.
The flat format also facilitates installation using cable protectors and reduces the risk of mechanical damage during lowering of the pump.
The cable is made up of three copper conductors placed in parallel, each individually insulated and protected by special materials capable of withstanding extremely demanding environments.
Flat ESP Cable Components #4 AWG
Multi-layer design ensures reliable operation for many years.
copper conductor
The conductor is usually made of high purity electrolytic copper.
Its main advantages include:
- Excellent electrical conductivity.
- Low resistance.
- Greater energy efficiency.
- Excellent flexibility.
- Long lifespan.
The caliber #4 AWG offers adequate current capacity for numerous deep pumping applications.

EPDM insulation
The isolation of EPDM It is one of the most used materials in ESP cables due to its extraordinary properties.
Among its advantages are:
- Excellent heat resistance.
- Great electrical stability.
- Aging resistance.
- Excellent performance against ozone.
- High vapor resistance.
- Good flexibility.
- Excellent resistance to hot water.
Depending on the manufacturer's design, can work continuously between 120 °C y 230 °C, being ideal for high temperature wells.
lead jacket
The lead jacket (Lead Sheath) Provides a virtually impermeable barrier against liquids and gases.
Its main functions include:
- Prevent gas penetration.
- Protection against hydrocarbons.
- H₂S resistance.
- Protection against CO₂.
- Corrosion resistance.
- Protection against saline water.
- Increased cable life.
This protection is especially important in oil fields with highly corrosive conditions..

protective tape
Many manufacturers incorporate a separator tape to protect the insulation during the manufacturing process and prevent mechanical damage..
Outer armor
Depending on the type of well, The cable may incorporate armor made of:
- Galvanized steel.
- Stainless steel 304.
- Stainless steel 316.
- Monel.
- Inconel.
The armor protects the cable against:
- Abrasion.
- Impacts.
- Compression.
- Damage during installation.
- Vibrations.
Typical Technical Specifications
| Parameter | Typical value |
|---|---|
| Type | Cable ESP Plano |
| Calibre | #4 AWG |
| Drivers | 3 |
| Material conductor | electrolytic copper |
| Isolation | EPDM |
| Jacket | Lead |
| Rated voltage | Until 5 kV |
| Maximum temperature | Until 230 °C |
| Frequency | 50/60 Hz |
| Application | Bombas Electrosumergibles |
Specifications can be modified according to the particular requirements of each project.
Main Advantages
Excellent thermal resistance
Modern wells reach extremely high temperatures. EPDM insulation maintains its electrical properties even under severe conditions.
High chemical resistance
The cable withstands continuous exposure to:
- Crude oil.
- Gas natural.
- saline water.
- Drilling mud.
- Chemicals.
- weak acids.
- CO₂.
- H₂S.
This considerably reduces premature deterioration of the insulation..

Longer useful life
The combination between EPDM and lead jacket allows the cable to operate for long periods without the need for replacement, reducing operating costs.
Excellent electrical performance
High purity copper conductor reduces energy losses and improves ESP system efficiency.
Operational safety
A quality cable helps prevent:
- Short circuits.
- electrical leaks.
- engine failures.
- Unexpected stops.
- Expensive repair work.
Applications
He ESP Cable Plano #4 AWG with EPDM and Lead Jacket It is used in a wide variety of oil operations.
Oil production
It is the most common application. The cable supplies power to the motor of the electrosubmersible pump installed hundreds or thousands of meters deep.
gas production
It is also used in gas producing wells where a reliable and continuous electrical supply is required..
High temperature wells
Thanks to EPDM, the cable maintains excellent properties even under extreme temperatures.
deep wells
Modern wells can exceed several thousand meters in depth., so the cable must withstand high mechanical stresses during installation and operation.
Plataformas offshore
Marine platforms present highly corrosive conditions due to the saline environment. Lead jacket provides additional protection against moisture and chemicals, increasing system reliability.

How to Choose the ESP Flat Cable #4 Suitable AWG
Choose the ESP Cable Plano #4 AWG with EPDM insulation and lead jacket Proper installation is essential to ensure the efficiency and useful life of an electrosubmersible pump system.. An incorrectly selected cable can cause power loss, premature engine failures and even costly production interruptions.
Before making the purchase, It is advisable to carefully evaluate the actual well conditions and the specifications of the ESP system..
Well depth
Cable length directly influences voltage drop. In deep wells it is important to select a conductor with adequate capacity to minimize electrical losses and maintain a stable power supply to the motor..
Operating temperature
Well temperature is one of the most important factors. In high temperature applications, EPDM insulation offers excellent thermal stability and maintains its electrical properties even during long periods of operation.
Fluid conditions
Each well has different characteristics. The presence of heavy oil, saline water, CO₂, H₂S, sand or aggressive chemicals can accelerate the aging of conventional materials. For this reason, combination of EPDM insulation and lead jacket is ideal for highly corrosive environments.
Voltage and current
The cable should be selected according to the operating voltage of the ESP motor. It is also important to check the rated current to avoid overheating during continuous operation.
Armor Type
Depending on the installation environment, The cable can be supplied with galvanized steel armor, stainless steel, Monel or Inconel to provide additional mechanical and chemical protection.
Cable ESP Plano vs. Cable ESP Redondo
ESP cables are mainly available in two configurations: flat and round. Each offers specific advantages depending on the well design..
| Feature | Cable Plano | Round Cable |
|---|---|---|
| Occupied space | Smaller | Mayor |
| Installation in small spaces | Excellent | Buena |
| Mechanical protection | Very good | Very good |
| Flexibility | Buena | Excellent |
| Most common applications | Narrow and deep wells | General facilities |
He Cable ESP Plano It is especially recommended when the space between the production tubing and the well casing is limited.. Its design facilitates installation and reduces the risk of damage during lowering of the ESP assembly.

Correct Installation of ESP Cable
Proper installation is as important as the quality of the cable itself. Even the best cable can be damaged if recommended procedures are not followed..
Inspection before installation
Before lowering the cable into the well, it is advisable to check that there are no deformations., visible cuts or damage to armor and outer jacket.
Using cable protectors
Protectors keep the cable firmly attached to the production tubing and prevent direct contact with the well casing. This considerably reduces mechanical wear.
Respect the minimum radius of curvature
Bending the cable below the recommended radius can cause internal damage to the insulation and reduce its lifespan..
Handling during transport
The cable must be handled carefully using suitable reels and avoiding impacts that could deform the lead jacket..
Maintenance Recommendations
Although the cable remains installed throughout the operation of the ESP system, following good practices helps prolong its useful life.
It is recommended:
- Keep the cable stored in dry places.
- Avoid prolonged exposure to the sun before installation.
- Protect the cable ends from moisture.
- Perform electrical tests before commissioning.
- Check all splices and connections.
- Only use accessories compatible with the system.
These measures significantly reduce the risk of unexpected failures.
Most Common Problems and How to Avoid Them
mechanical damage
They generally occur during installation when the cable comes into contact with metal surfaces or sharp edges..
Solution: use protectors and correctly follow the installation procedure.
Overheating
It can occur when the cable is operated above its current or temperature capacity..
Solution: correctly select caliber and thermal rating.
Chemical attack
In environments with high concentrations of H₂S or CO₂, Low quality materials can deteriorate quickly.
Solution: choose cables with EPDM insulation and lead jacket.
Penetration of liquids or gases
A damaged jacket allows fluids to enter the insulation.
Solution: inspect the cable before installing it and avoid shocks during transport.
Advantages of Buying from a Specialized Manufacturer
A professional manufacturer can offer much more than just a product..
Among the main benefits are:
- Manufacturing according to customer requirements.
- Quality control throughout the production process.
- High purity copper conductors.
- Internationally certified materials.
- Modern manufacturing and testing equipment.
- Extensive experience in international oil projects.
- Technical support before and after the sale.
- Fast delivery for urgent projects.
Besides, many manufacturers offer customized solutions for different depths, temperatures and chemical conditions.

Frequently Asked Questions
What does it mean #4 AWG?
It is a conductor size according to the American Wire Gauge system, widely used in the oil industry.
Why use EPDM insulation?
Because it offers excellent heat resistance, to aging, to the ozone, to hot water and numerous chemicals.
What is the function of the lead jacket?
Acts as an impermeable barrier against gases, humidity and hydrocarbons, considerably increasing the useful life of the cable.
Can it be used in deep wells??
Yeah. Cable is designed for deep pumping applications and severe conditions.
What is the nominal voltage?
The most common models are available for systems up to 5 kV.
What is the difference between a flat cable and a round cable??
Flat cable takes up less space and is best suited for wells with limited space between casing and tubing.
Is it resistant to H₂S?
Yeah. EPDM and lead jacket combination provides excellent resistance to hydrogen sulfide.
Can be customized?
Yeah. It is possible to manufacture different calibers, insulation thicknesses, armor materials and lengths according to customer needs.
ESP Cable Market Trends
With the development of increasingly deeper and more complex deposits, the demand for ESP Cables high performance continues to grow. Operators are looking for products capable of withstanding higher temperatures, higher pressures and highly corrosive environments, without compromising system reliability.
At the same time, manufacturers invest in new extrusion technologies, advanced insulation materials and strict quality controls to deliver cables with higher energy efficiency and longer life.

Why Choose a Chinese ESP Cable Manufacturer?
China has become one of the main industrial cable manufacturing centers thanks to its technological capacity and competitiveness.
A reliable manufacturer can offer:
- Competitive prices.
- Large scale production.
- Product customization.
- International certifications.
- Reduced delivery times.
- Specialized technical service.
- Extensive experience in exporting to international markets.
The combination of quality, production capacity and technical support make Chinese manufacturers an increasingly valued option for oil and gas companies around the world.
Conclusion
He ESP Cable Plano #4 AWG with EPDM Insulation and Lead Jacket is a reliable solution for electrosubmersible pump systems operating in demanding conditions. Its excellent thermal resistance, chemistry and mechanics ensure a stable power supply even in deep wells and highly corrosive environments.
When selecting an ESP cable, It is essential to consider the depth of the well, operating temperature, system voltage and fluid characteristics. Working with an experienced manufacturer committed to quality will allow you to obtain a high-performance product., reduce maintenance costs and maximize the productivity of oil operations in the long term.