4‑core PVC flat submersible cable
The four‑core flat cable is similar to the three‑core design but contains an additional conductor, allowing it to supply three‑phase loads with a neutral or earth return. Its flat profile makes it ideal for narrow borewell installations.
Construction
Four stranded copper conductors laid parallel; individual cores insulated in flexible PVC; overall sheath of tough PVC; flat geometry simplifies installation in narrow wells.
Cable standards
Manufactured to IS 694 and IS 8130 requirements; comparable international standards include IEC 60227 and DIN VDE 0281.
Technical specification
Rated voltage ≈1100 V; temperature rating –15 °C to +70 °C/90 °C; available cross‑sections 1.5–16 mm²; insulation thickness and sheath thickness sized according to core area; current rating increases with conductor size.
Characteristics
Highly flexible; high abrasion, tear and oil resistance; excellent dielectric strength; long service life under continuous immersion; four cores allow three‑phase plus neutral applications.
Applications
Supplying power to three‑phase submersible pumps and underwater motors; suitable for irrigation, de‑watering and water supply in domestic, agricultural and industrial environments where the bore diameter is limited.
SBJI Copper conductor, PVC insulated and sheathed 4 core flat cable.
| Size / Area in Sq.mm. | No. & size of wire | Nominal Insulation thickness (mm) | Overall core Diameter (mm) | Sheath thickness (mm) | Overall size (W X T) (mm) | Max. resistance @20°C (ohm/km) | Current rating (Amp.) |
|---|
| 1.5 | 22/0.30 | 0.6 | 3 | 1 | 15.5 X 5.5 | 12.1 | 14 |
| 2.5 | 36/0.30 | 0.7 | 3.6 | 1.15 | 18.0 X 6.5 | 7.41 | 18 |
| 4 | 56/0.30 | 0.8 | 4.5 | 1.2 | 21.0 X 7.5 | 4.61 | 25 |
| 6 | 84/0.30 | 1 | 5.2 | 1.4 | 24.2 X 8.0 | 3.08 | 32 |
| 10 | 140/0.30 | 1 | 6.5 | 1.5 | 29.7 X 9.9 | 1.83 | 45 |
| 16 | 226/0.30 | 1 | 7.8 | 1.7 | 36.0 X 11.4 | 1.15 | 57 |
| 25 | 354/0.30 | 1.2 | 9.5 | 2 | 45.0 X 14.5 | 0.727 | 72 |
| 35 | 495/0.30 | 1.4 | 11.2 | 2 | 51.0 X 17.0 | 0.524 | 90 |
SBJI Copper conductor, PVC insulated and sheathed 4 core flat cable.
Rating factor for low voltage:
Multiply the full load current of submersible motor by factors given below for different supply voltage:
| Voltage | 415 | 400 | 350 | 300 | 275 | 250 |
| Rating factor | 1 | 1.05 | 1.15 | 1.25 | 1.3 | 1.35 |
SBJI Copper conductor, PVC insulated and sheathed 4 core flat cable.
Derating Factors:
Multiply the full load current of submersible motors by factors given below for various ambient temperatures.
| Ambient Temperature °C | 30 | 35 | 40 | 45 | 50 |
| Rating factor | 1.09 | 1.04 | 1 | 0.95 | 0.77 |
← Back to Products
