3‑core PVC round submersible cable
Round submersible cables have their three insulated conductors arranged helically around a central filler, giving the cable a circular cross‑section. The round form offers greater flexibility and mechanical strength for deeper installations.
Construction
Three stranded copper conductors laid around fillers; each core insulated in PVC; overall PVC sheath forms a round cable; fillers maintain circular shape and flexibility.
Cable standards
Designed in accordance with IS 694 for PVC insulated cables and IS 8130 for conductor construction; comparable to IEC 60227 and BS 6004.
Technical specification
Rated voltage ≈1100 V; typical sizes 1.5–35 mm²; temperature rating –15 °C to +70 °C; insulation and sheath thickness proportionate to conductor area; round geometry allows smaller bending radius.
Characteristics
Flexible and easy to handle; high efficiency and uninterrupted power transmission; excellent abrasion, moisture and chemical resistance; high conductivity and mechanical strength.
Applications
Powering submersible motors and pumps where greater depth or flexibility is required; used in deep borewells, water treatment plants and irrigation systems.
SBJI copper conductor, PVC insulated and Double sheathed 3 core round cable:
| Size / Area in Sq.mm. | No. & size of wire | Nominal Insulation thickness (mm) | Overall core Diameter (mm) | Thickness of inner sheath (mm) | Thickness of outer sheath (mm) | Overall Diameter (mm) | Max. resistance @20°C (ohm/km) | Current rating (Amp.) |
|---|
| 1.5 | 22/0.30 | 0.6 | 3 | 1 | 1.2 | 10.8 | 12.1 | 14 |
| 2.5 | 36/0.30 | 0.7 | 3.6 | 1 | 1.2 | 13.2 | 7.41 | 18 |
| 4 | 56/0.30 | 0.8 | 4.5 | 1 | 1.2 | 14.2 | 4.61 | 25 |
| 6 | 84/0.30 | 1 | 5.2 | 1 | 1.4 | 16.5 | 3.08 | 32 |
| 10 | 140/0.30 | 1 | 6.5 | 1 | 1.4 | 19.1 | 1.83 | 45 |
| 16 | 226/0.30 | 1 | 7.8 | 1 | 1.4 | 23.5 | 1.15 | 57 |
| 25 | 354/0.30 | 1.2 | 9.5 | 1 | 1.6 | 28.5 | 0.727 | 72 |
| 35 | 495/0.30 | 1.4 | 11.2 | 1 | 2 | 30.5 | 0.524 | 90 |
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