Factory-Direct Supply of Certified Wires and Conductors for Diverse Industrial Applications
JHSB Submersible Pump Cable
Standard: GB/T 5013
Cable Profile: Flat (3 cores side-by-side parallel layout)
Rated Voltage: 300/500V (Uo/U); Test Voltage: 2.5 kV AC
Conductor: Class 5 fine-stranded bare copper (GB/T 3956)
Insulation (per core): EPR (Ethylene Propylene Rubber)
Outer Sheath: CPE (Chlorinated Polyethylene) waterproof rubber, flat profile
Core Configuration: 3-core standard (3+1 on request)
Conductor Sizes: 1.5 / 2.5 / 4 / 6 / 10 / 16 / 25 / 35 / 50 / 70 / 95 mm²
Max. Working Temperature: 65 °C (continuous submerged)
Min. Installation Temperature: −25 °C
Product Overview
JHSB Flat Submersible Pump Cable is the flat-profile variant of the JHS submersible cable family, designed specifically for deep borehole well pumps where the narrow annular space between the pump casing and borehole wall makes a round cable impractical. The three conductors are arranged side-by-side in a flat parallel layout and encased in a single CPE (Chlorinated Polyethylene) waterproof rubber sheath, producing a flat ribbon profile that lies flat against the pump body and drop pipe — minimising drag, preventing twisting during installation, and fitting through borehole casings too tight for round cable.
Manufactured to GB/T 5013, JHSB is rated at 300/500V (Uo/U) with a test voltage of 2.5 kV AC. Each conductor uses the same proven construction as JHS: Class 5 fine-stranded bare copper for flexibility, individually insulated with EPR (Ethylene Propylene Rubber) for superior water resistance and dielectric stability under continuous submersion. The flat profile is the only structural difference from JHS — insulation material, sheath compound, and conductor specification are identical.
JHSB is rated for submersion depths up to 500 metres and a maximum continuous working temperature of 65 °C. Available in 3-core configuration (standard for three-phase submersible motors) in conductor sizes from 1.5 mm² to 95 mm².
CPE Flat Outer Sheath — Single waterproof sheath encasing all three cores in flat parallel layout
EPR Insulation (per core) — Individual ethylene propylene rubber insulation on each conductor
Class 5 Bare Copper Conductor — Fine-stranded per GB/T 3956, three conductors side-by-side
Flat Profile — Lies flat against pump body and drop pipe; no twisting, no tangling in borehole
Technical Specifications
Basic Parameters
| Standard | GB/T 5013 (Rubber insulated cables, rated voltage 450/750V and below) |
|---|---|
| Rated Voltage | 300/500V (Uo/U); test voltage 2.5 kV AC |
| Cable Profile | Flat (parallel three-core layout) |
| Conductor | Class 5 fine-stranded bare copper (GB/T 3956) |
| Insulation (per core) | EPR — Ethylene Propylene Rubber |
| Outer Sheath | CPE — Chlorinated Polyethylene waterproof rubber, flat profile |
| Core Configuration | 3-core (standard); 3+1 core available on request |
| Conductor Sizes | 1.5 / 2.5 / 4 / 6 / 10 / 16 / 25 / 35 / 50 / 70 / 95 mm² |
| Max. Working Temperature | 65 °C (continuous submerged) |
| Min. Installation Temperature | −25 °C |
| Max. Submersion Depth | 500 metres |
| Min. Bending Radius | 6 × flat dimension (width) for fixed installation |
| Waterproof Performance | Withstands hydrostatic pressure equivalent to 500 m water column (≈ 50 bar) |
| Anti-twist | Flat profile prevents cable rotation during pump lowering and retrieval |
| Oil Resistance | Good (CPE sheath) |
| Flame Retardancy | GB/T 18380 |
3-Core Flat Cable — Dimensional & Electrical Data
| Cross-Section (mm²) | Conductor Stranding | Conductor Ø (mm) | Insulation Thickness (mm) | Sheath Thickness (mm) | Flat Width × Height (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 | 25 × 10 | 165 | 12.10 | 14 |
| 3×2.5 | 36/0.30 | 2.0 | 0.9 | 1.8 | 29 × 11 | 238 | 7.41 | 18 |
| 3×4 | 56/0.30 | 2.5 | 1.0 | 1.9 | 34 × 13 | 320 | 4.61 | 26 |
| 3×6 | 84/0.30 | 3.2 | 1.0 | 2.1 | 38 × 14 | 430 | 3.08 | 31 |
| 3×10 | 140/0.30 | 4.3 | 1.2 | 3.3 | 50 × 18 | 790 | 1.83 | 42 |
| 3×16 | 224/0.30 | 5.3 | 1.2 | 3.5 | 57 × 21 | 1050 | 1.15 | 57 |
| 3×25 | 350/0.30 | 7.0 | 1.4 | 3.8 | 68 × 26 | 1530 | 0.727 | 72 |
| 3×35 | 490/0.30 | 8.0 | 1.4 | 4.1 | 76 × 28 | 1950 | 0.524 | 90 |
| 3×50 | 703/0.30 | 9.6 | 1.6 | 4.5 | 89 × 34 | 2620 | 0.387 | 115 |
| 3×70 | 988/0.30 | 11.5 | 1.6 | 4.8 | 100 × 38 | 3480 | 0.268 | 143 |
| 3×95 | 1349/0.30 | 13.3 | 1.8 | 5.3 | 114 × 43 | 4620 | 0.193 | 165 |
JHSB vs JHS — Key Differences
| Parameter | JHSB (Flat) | JHS (Round) |
|---|---|---|
| Profile | Flat — 3 cores side-by-side | Round — cores twisted/cabled |
| Rated Voltage | 300/500V | 450/750V |
| Typical Application | Deep borehole well pumps (to 500 m) | General submersible pump installations |
| Borehole Fit | Excellent — lies flat against casing wall | Standard — may restrict clearance in narrow casings |
| Anti-twist | Yes — flat profile prevents rotation | No — round cable can twist during lowering |
| Core Count | 3-core standard (3+1 on request) | 1 / 2 / 3 / 4 core |
| Conductor / Insulation / Sheath | Class 5 Cu / EPR / CPE — identical to JHS | Class 5 Cu / EPR / CPE |
Key Features & Advantages
Flat Profile for Borehole Installations
The flat ribbon body slides into narrow borehole casings where a round cable would jam or restrict pump clearance. The profile lies flush against the submersible pump body and drop pipe, leaving maximum water flow area in the casing.
Anti-Twist — No Tangling During Deployment
A round cable rotates as it is lowered, causing the conductors to twist and the cable to bunch at the pump head. JHSB's flat geometry resists rotation — the cable pays out straight and retrieves straight, even from depths of hundreds of metres.
500 m Depth Rating
CPE sheath and EPR insulation maintain waterproof integrity under the hydrostatic pressure equivalent to a 500-metre water column (approximately 50 bar) — covering the deepest agricultural and municipal boreholes in regular use.
EPR Insulation Under Pressure
Ethylene Propylene Rubber maintains stable dielectric properties under high hydrostatic pressure and elevated temperature. Unlike PVC, EPR does not harden at low temperature or plasticize-migrate under prolonged water immersion at depth.
CPE Waterproof Outer Sheath
Chlorinated Polyethylene sheath provides oil resistance, UV resistance for the surface portion of the cable run, ozone resistance, and abrasion resistance against the borehole casing wall during installation and retrieval.
Class 5 Fine-Stranded Copper
Highly flexible Class 5 conductors prevent conductor fatigue during the repeated coiling and bending experienced when the pump is lowered, retrieved for maintenance, and re-deployed over its service life.
Certifications & Standards
Typical Applications
Deep Borehole Well Pumps
Primary application — narrow casing boreholes for agricultural, municipal, and industrial deep-well pumping to 500 m depth.
Agricultural Deep-Well Irrigation
Deep groundwater extraction for crop irrigation in arid regions where borehole depths exceed the reach of JHS round cable installations.
Municipal Water Supply Wells
Drinking water borehole pumps in urban and rural water supply systems — flat profile suits standard 6-inch and 8-inch well casings.
Industrial Groundwater Extraction
Process water supply boreholes for manufacturing, food processing, and cooling tower makeup water in industrial facilities.
Mine Dewatering (Deep Shafts)
Submersible dewatering pumps in deep mine shafts where round cable clearance is restricted by shaft lining and guide rails.
Geothermal Heat Pump Systems
Deep-loop circulation pump wiring in closed-loop geothermal systems where flat cable minimises borehole space consumption.
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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.