Current Rating:
The maximum current ratings of flexible welding cables for different duty cycles are based on an ambient air temperature of 25°c and a maximum conductor temperature of 90 °c.
The percentage duty cycles for various processes and applications are as follows:
Voltage Drop:
When total cable lengths in excess of 15 mtrs, are involved, it may be necessary to use cables of larger cross section to ensure that the voltage drop is not excessive and welding currents are maintained at adequate levels.
| FIXED INSTALLATION | -30°c to max. + 90°C | ||||
| NOMINAL VOLTAGE | 600 V | ||||
| TEST VOLTAGE | 2500 V | ||||
| MECHANICAL PROPERTIES | Tensile strength = 10 N/mm2 Min. Elongation = 300 Min. | ||||
| MIN. BENDING RADIUS | 6 x cable diameter | ||||
| FLAME PROPAGATION | Flame retardant test as per IEC 60332-1 |
| Cross Sectional Area |
Copper Construction |
Inner Dia |
Outer Dia Appx |
Max. Conducter Resistance at 20°C |
Current rating Welding applications Duty Cycle |
Non Welding Application |
||||
|---|---|---|---|---|---|---|---|---|---|---|
| 100% | 85% | 60% | 30% | 20% | ||||||
| sq.mm | Nos. × Dia. mm | mm | mm | /km | amp | amp | amp | amp | amp | amp |
| 25 | 798 × 0.20 | 9.50 | 12.10 | 0.780 | 180 | 195 | 230 | 330 | 402 | 187 |
| 35 | 1121 × 0.20 | 11.00 | 14.20 | 0.554 | 225 | 245 | 290 | 410 | 503 | 233 |
| 50 | 1596 × 0.20 | 12.30 | 16.30 | 0.386 | 285 | 310 | 370 | 520 | 637 | 295 |
| 70 | 2720 × 0.20 | 14.40 | 18.70 | 0.272 | 355 | 385 | 460 | 650 | 794 | 372 |
| 95 | 1349 × 0.30 | 16.60 | 20.80 | 0.206 | 430 | 470 | 560 | 790 | 961 | 449 |
| 120 | 608 × 0.50 | 18.20 | 23.00 | 0.161 | 500 | 540 | 650 | 910 | 1118 | 523 |
• The number of wires is approximate and wire diameter is nominal; they shall satisfy
the requirement of conductor resistance of IEC 60226 / DIN VDE 0295 / IS 8130 / BS 6360.
| Ambient Temperature °C | 20° | 25° | 30° | 35° | 40° | 45° | 50° | 55° | 60° | 65° |
| Rating Factor | 1.04 | 1.00 | 0.96 | 0.91 | 0.87 | 0.82 | 0.76 | 0.69 | 0.64 | 0.57 |
WELDING CABLE STRUCTURE
Generally conforms to, Based on CENELEC HD 22-6 31, VDE 0282, IEC 245-6,
BS 6899, IS 6830/84
WELDING CABLE APPLICATION
NBR/NBR
Designed for the secondary (high current) connection to automatic or hand-held metal arc welding electrodes. It is suitable for flexible use under rugged conditions, on assembly lines and conveyor systerns, in machine tool and automatically operated line and spot welding machines.
Standard length cable packing: 100 Meter Coil (Wooden Reel)
| SIZES AVAILABLE | 35 MM Sq | 50 MM Sq | 70 MM Sq |