This insulation material is made of high-purity resin as the base material, with reinforcing agent, antioxidant, etc. mixed and extruded into granules. It has excellent performance such as heat resistance and weather resistance, no precipitation pollution, meets the relevant requirements of Rohs, etc., and is easy to extrude and process.
used for submersible pump power cables, electrical power cords, etc.
| Testing items | VALUE | Typical Value | UNIT | Test Method | |
| Physical Property | |||||
| Specific Gravity | 1.20±0.05 | 1.19 | g/cm3 | GB/T1033 | |
| Hardness | 65-95 | 71 | Shore A | GB/T-531/ISO7619 | |
| Tensile Strength | ≥ 6 | 6.59 | MPa | GB-T 2951.11 | |
| Elongation at break | 100-200 | 186 | % | GB-T 2951.11 | |
| Sulfur curve（175℃,6min） | |||||
| ML | \ | 2.33 | N·m | \ | |
| MH | \ | 35.58 | N·m | \ | |
| TC10 | \ | 0:33 | min：sec | \ | |
| TC90 | \ | 3:36 | min：sec | \ | |
| Environmental Requirement | |||||
| meet ROHS、REACH。 | |||||
| Material | EPDM Ethylene propylene Diene Monomer，DCP Vulcanization | ||||
| Color | Natural color （looks like white color） | ||||
| Shape | Granular | ||||
EPDM Ethylene Propylene Diene Monomer is a material that is well suited for insulation of low-voltage cables and wires for submersible pumps. It has excellent resistance to heat, weather, ozone, and chemical corrosion, as well as excellent electrical insulation properties, which make EPDM widely used in submersible pump cables in the petroleum and chemical industries.
In submersible pump cable applications, EPDM insulation materials are able to withstand high temperatures and harsh chemical environments while maintaining their physical and electrical properties. For example, some EPDM insulated submersible pump cables have insulation materials that can withstand temperatures up to 121°C (250°F) and are generally compliant with standards such as IEEE Std. 1018, API RP 11S5, and API RP 11S6.
The construction of a specific EPDM insulated submersible pump cable includes multiple bare copper conductors, EPDM insulation, NBR jacket, fluoropolymer tape, nylon braid, and galvanized steel tape interlocking armor. This cable is designed to reliably transmit electrical energy in downhole installations in the oil industry. The size and weight of the cable will also vary depending on the conductor specification and voltage level.
In general, EPDM is an ideal material for insulation of low-voltage cables and wires for submersible pumps due to its excellent chemical resistance and electrical insulation properties, and can provide reliable performance under extreme conditions.
EPDM can withstand high temperatures, making it suitable for deep and high-temperature well environments.
EPDM exhibits excellent resistance to oil, chemicals, and corrosive environments, contributing to extended cable life.
A barrier layer (tape/extruded/braided layer) + sealing design prevents well fluids and gases from damaging the conductor or insulation.
The armored structure, combined with the physical elasticity of EPDM and the sheath design, allows the cable to withstand downhole tension, friction, and long-term loads.
It meets industry standards (e.g., some ESP cables comply with IEEE 1018/API RP 11S6, etc.).
Therefore, EPDM low-voltage cable compounds are a common and reliable choice for ESP systems (submersible oil pumps).
When selecting or designing EPDM materials for submersible pump cables, the following should be considered:
Select the appropriate compound/sheath based on well depth, temperature, and the chemical properties of the fluid (oil/water/gas).
Submersible pump cables may require long-distance deployment, hoisting, and relocation; therefore, the structural design must consider tensile, compressive, and bending resistance.
Cables and composite materials conforming to international or industry standards (such as IEEE 1018/API RP 11S6/API RP 11S5, etc.) are preferred.
