Factory-Direct Supply of Certified Wires and Conductors for Diverse Industrial Applications
JHS Submersible Pump Cable
Standard: GB/T 5013 (Rubber insulated cables, 450/750V and below)
Rated Voltage: 450/750V (Uo/U); Test Voltage: 2.5 kV AC
Conductor: Class 5 fine-stranded bare copper (GB/T 3956)
Insulation: EPR (Ethylene Propylene Rubber)
Filler: Waterproof rubber compound
Outer Sheath: CPE (Chlorinated Polyethylene) waterproof rubber
Core Configuration: 1-core / 2-core / 3-core / 4-core (3+1 available)
Conductor Sizes: 1.5 / 2.5 / 4 / 6 / 10 / 16 / 25 / 35 / 50 / 70 / 95 / 120 / 150 mm²
Max. Working Temperature: 65 °C (submerged continuous)
Min. Installation Temperature: −25 °C
Product Overview
JHS Submersible Pump Cable is a waterproof rubber-sheathed flexible cable designed specifically for connecting power supply to submersible pumps and submersible motors operating at AC voltages up to 450/750V. Manufactured to GB/T 5013 (rubber insulated cables for rated voltages up to 450/750V), it is engineered to maintain full electrical insulation performance under prolonged water immersion and hydrostatic pressure — conditions that would rapidly degrade standard PVC-insulated cables.
The construction combines a Class 5 fine-stranded bare copper conductor for maximum flexibility, EPR (Ethylene Propylene Rubber) insulation for superior water resistance and electrical stability, and a CPE (Chlorinated Polyethylene) waterproof outer sheath that resists oil, abrasion, and UV degradation. The round cable profile accommodates 1-core, 2-core, 3-core, and 4-core configurations, covering single-phase and three-phase submersible motor installations across conductor sizes from 1.5 mm² to 150 mm².
JHS is the standard cable for agricultural irrigation pumps, municipal water supply wells, mine dewatering systems, and deep borehole pump installations. The long-term allowable working temperature in continuous submerged service is 65 °C, and the cable withstands a test voltage of 2.5 kV AC — providing a comfortable safety margin above the rated 450/750V operating voltage.
CPE Outer Sheath — Chlorinated polyethylene, waterproof, oil-resistant, UV-resistant
Waterproof Rubber Filler — Fills interstices between cores, prevents water migration along cable length
EPR Insulation — Ethylene propylene rubber per core, stable dielectric under continuous water immersion
Class 5 Bare Copper Conductor — Fine-stranded for flexibility, complies with GB/T 3956
Technical Specifications
Basic Parameters
| Standard | GB/T 5013 (Rubber insulated cables, rated voltage 450/750V and below) |
|---|---|
| Rated Voltage | 450/750V (Uo/U); test voltage 2.5 kV AC |
| Conductor | Class 5 fine-stranded bare copper (GB/T 3956) |
| Insulation | EPR — Ethylene Propylene Rubber |
| Filler | Waterproof rubber compound (fills inter-core voids) |
| Outer Sheath | CPE — Chlorinated Polyethylene, waterproof rubber sheath |
| Core Configuration | 1-core, 2-core, 3-core, 4-core (3+1 core available) |
| Conductor Sizes | 1.5 / 2.5 / 4 / 6 / 10 / 16 / 25 / 35 / 50 / 70 / 95 / 120 / 150 mm² |
| Max. Working Temperature | 65 °C (continuous submerged); 60 °C (dry environments) |
| Min. Installation Temperature | −25 °C |
| Min. Bending Radius | 4 × OD (fixed); 6 × OD (repeated flexing) |
| Waterproof Performance | Suitable for long-term full water immersion and elevated hydrostatic pressure |
| Oil Resistance | Good (CPE sheath) — suitable for oil-contaminated environments |
| Flame Retardancy | GB/T 18380 (single wire vertical burn) |
3-Core Cable — Dimensional & Electrical Data (most common configuration)
| Cross-Section (mm²) | Conductor Stranding | Conductor Ø (mm) | Insulation Thickness (mm) | Sheath Thickness (mm) | Overall Ø (mm) | Weight (kg/km) | DC Resistance (Ω/km, 20°C) | Current Rating (A) |
|---|---|---|---|---|---|---|---|---|
| 3×1.5 | 22/0.30 | 1.5 | 0.8 | 1.6 | 9.2–11.9 | 160 | 12.10 | 14 |
| 3×2.5 | 36/0.30 | 2.0 | 0.9 | 1.8 | 10.9–14.0 | 225 | 7.41 | 18 |
| 3×4 | 56/0.30 | 2.5 | 1.0 | 1.9 | 12.7–16.2 | 306 | 4.61 | 26 |
| 3×6 | 84/0.30 | 3.2 | 1.0 | 2.1 | 14.1–18.0 | 408 | 3.08 | 31 |
| 3×10 | 140/0.30 | 4.3 | 1.2 | 3.3 | 19.1–24.2 | 758 | 1.83 | 42 |
| 3×16 | 224/0.30 | 5.3 | 1.2 | 3.5 | 21.8–27.6 | 1014 | 1.15 | 57 |
| 3×25 | 350/0.30 | 7.0 | 1.4 | 3.8 | 26.1–33.0 | 1473 | 0.727 | 72 |
| 3×35 | 490/0.30 | 8.0 | 1.4 | 4.1 | 29.3–37.1 | 1870 | 0.524 | 90 |
| 3×50 | 703/0.30 | 9.6 | 1.6 | 4.5 | 34.1–42.9 | 2509 | 0.387 | 115 |
| 3×70 | 988/0.30 | 11.5 | 1.6 | 4.8 | 38.4–48.3 | 3362 | 0.268 | 143 |
| 3×95 | 1349/0.30 | 13.3 | 1.8 | 5.3 | 43.3–54.0 | 4476 | 0.193 | 165 |
| 3×120 | 1600/0.31 | 15.0 | 1.8 | 5.6 | 47.3–60.0 | 5355 | 0.153 | 190 |
| 3×150 | 2000/0.31 | 16.8 | 2.0 | 6.0 | 52.0–66.0 | 6626 | 0.124 | 215 |
4-Core Cable — Dimensional Data (3-phase + earth)
| Cross-Section (mm²) | Conductor Ø (mm) | Insulation (mm) | Sheath (mm) | Overall Ø (mm) | Weight (kg/km) |
|---|---|---|---|---|---|
| 4×1.5 | 1.5 | 0.8 | 1.7 | 10.2–13.1 | 193 |
| 4×2.5 | 2.0 | 0.9 | 1.9 | 12.1–15.5 | 279 |
| 4×4 | 2.5 | 1.0 | 2.0 | 14.0–17.9 | 383 |
| 4×6 | 3.2 | 1.0 | 2.3 | 15.7–20.0 | 522 |
| 4×10 | 4.3 | 1.2 | 3.4 | 20.9–26.5 | 936 |
| 4×16 | 5.3 | 1.2 | 3.6 | 23.8–30.1 | 1266 |
| 4×25 | 7.0 | 1.4 | 4.1 | 28.9–36.6 | 1896 |
| 4×35 | 8.0 | 1.4 | 4.4 | 32.5–41.1 | 2410 |
| 4×50 | 9.6 | 1.6 | 4.8 | 37.7–47.5 | 3214 |
| 4×70 | 11.5 | 1.6 | 5.2 | 42.7–54.0 | 4396 |
| 4×95 | 13.3 | 1.8 | 5.9 | 48.4–61.0 | 5800 |
| 4×120 | 15.0 | 1.8 | 6.0 | 53.0–66.0 | 6895 |
| 4×150 | 16.8 | 2.0 | 6.5 | 58.0–73.0 | 8570 |
Key Features & Material Advantages
True Waterproof Construction
EPR insulation per core, waterproof rubber filler between cores, and CPE outer sheath form a fully water-resistant system. The cable maintains insulation resistance above 100 MΩ·km after prolonged full-water immersion — no moisture migration, no insulation degradation.
EPR Insulation — Superior Dielectric Stability
Ethylene Propylene Rubber maintains excellent electrical properties under continuous water immersion, elevated temperature (65 °C), and thermal cycling. Unlike PVC, EPR does not become brittle at low temperatures or plasticizer-depleted over time in wet environments.
CPE Waterproof Outer Sheath
Chlorinated Polyethylene sheath provides oil resistance, UV resistance, ozone resistance, and mechanical abrasion resistance. Maintains flexibility at −25 °C — important for cold-region pump installations where the cable must be handled and routed in freezing conditions.
Waterproof Rubber Filler
The inter-core voids are filled with waterproof rubber compound — not air, not textile filler. This prevents longitudinal water migration along the cable core even if the outer sheath is punctured at a single point, containing water ingress to the damaged section only.
Class 5 Fine-Stranded Copper
Highly flexible Class 5 stranding (e.g. 350 strands of 0.30 mm wire for 25 mm²) enables the cable to be coiled, deployed, and retrieved repeatedly without conductor fatigue — essential for portable pump installations that are regularly moved between locations.
Oil & Chemical Resistance
CPE sheath resists petroleum oils, hydraulic fluids, mild acids, and alkalis — making JHS suitable for industrial dewatering, mining drainage, and oil-contaminated groundwater pumping where standard rubber sheaths would swell and degrade.
Certifications & Standards
Typical Applications
Agricultural Irrigation
Deep borehole and open-well submersible pumps for farmland irrigation — the dominant application for JHS cables worldwide.
Municipal Water Supply
Water supply well pumps for urban and rural drinking water systems, where continuous submerged operation over years is required.
Mine Dewatering
Drainage submersible pumps in coal mines, quarries, and tunnelling operations. CPE sheath handles oil-contaminated mine water.
Construction Site Drainage
Portable submersible pumps for dewatering excavations and foundations. Fine-stranded conductor withstands repeated coiling and deployment.
Industrial Process Pumping
Coolant, effluent, and process water submersible pumps in manufacturing facilities and wastewater treatment plants.
Flood Control & Drainage
Emergency flood dewatering submersible pumps. Cable flexibility enables rapid deployment across difficult terrain.
Aquaculture & Fish Farming
Pond aeration and circulation pumps in fish farms and shrimp aquaculture — continuous submersion in fresh or brackish water.
Swimming Pool & Fountain Pumps
Circulation and filtration pump wiring in pools, decorative fountains, and water features requiring permanent water-resistant cable.
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Frequently Asked Questions
As a factory, we offer flexible MOQ depending on the cable type. For standard stock items, MOQ is low; for customized specifications, please contact our sales team for a detailed quote.
Yes, Qiangli cables are manufactured in compliance with international standards such as UL, CE, TUV, and VDE. We provide full test reports and certificates upon request.
Absolutely. We have a dedicated R&D team that can customize cable structure, material, color, and printing to meet your specific project needs.
For standard products, lead time is usually 7-15 days. For large-scale project orders or customized products, it typically ranges from 20 to 30 days.
Yes, we provide free samples for most standard cables. You only need to cover the international courier costs. Contact us to arrange your sample shipment.