NBR INSULATED EXTRA FLEXIBLE COPPER WELDING CABLE

NBR Rubber Double Insulated Extra Flexible Copper Welding Cable

Welding Cable Structure

generally conforms to, Based on CENELEC HD 22-6 31, VDE 0282, IEC 245-6, BS 6899, IS 6830/84

Conductor:
High conductivity, bare annealed copper flexible conductor, EC copper class 5 and class 6 generally conforms to IEC 60228, DIN VDE 0281

Insulation:
NBR Insulated flexible Nitrile rubber (NBR) insulated

Colour code:
Orange & Black Jacket

*Any other Color on specific request can also be supplied

Welding Cable Technical Data

Fixed installation :  -30°c to max.+ 90°C
Nominal voltage :  600 V
Test voltage :  2500 V
Mechnical 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

Welding Cable features

  • Ultra high performance flexible welding lead, double insulated
  • Better flame retardant properties
  • Excellent flexibility to last longer in flex applicationsBased on CENELEC HD 22-6 31, VDE 0282, IEC 245-6, IS 473, BS 638-4
  • Outstanding toughness & durability
  • High resistance to cuts, tears & abrasion
  • Resistance to oil, solvents and chemicals
  • Excellent ozone and weather resistant

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 systems, in machine tool and automatically operated line and spot welding machines.

Standard length cable packing:
Coils 100, 200, 300 and 500 m. in wooden reels

Technical Data Table

Current Rating :
The maximum current ratings of flexible welding cables for different duly cycles are based on an ambient air temperature of 25°c and a maximum conductor temperature of 90°c. The percentage duly cycles for various processes and applications are as follows:

  • Automobile Welding : up to 100%
  • Semi-automatic Welding : 30% to 85%
  • Manual Welding : 0% to 60%
  • Very intermittent or Occasional Welding : up to 20%

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.

TECHNICAL INFORMATION

Cross Sectional Area Copper Construction Inner Dia. Outer Dia Appx. Max. Conductor Resistance at 20˚C Current rating Non Welding Application
Welding applications
Duty Cycle
100% 85% 60% 30% 20%
Sq. mm. Nos. / Dia. mm mm mm Ω/km amp amp amp amp amp amp
10 322 / 0.20 6.30 9.90 1.910 105 115 135 190 235 110
16 511 / 0.20 8.00 10.70 1.210 135 145 175 245 302 138
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 2220 / 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 500540 650 910 1118 523
150 760 / 0.50 21.10 27.60 0.129 580 620 740 1040 1297 608
185 943 / 0.50 23.80 30.80 0.106 660 715 850 1200 1476 690
240 1225 / 0.50 26.80 34.00 0.0801 710 770 916 1296 1587 744
300 1498 / 0.50 30.30 37.50 0.0641 800 850 1035 1450 1790 840
400 2035 / 0.50 33.60 41.30 0.0486 925 1000 1195 1690 2070 970
  • The number of wires is approximate and wire diameter is nominal; they shall be such as to satisfy the requirements of conductor resistance of IEC 60228 / DIN VDE 0295 / IS 8130 / BS 6360
  • In view of continuous improvements in our design and process, specifications given here in are subject change without notice.
  • All are flexible conductor
  • Insulation material is NBR
  • Sheath material is NBR

Rating factors for variation in ambient temprature

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

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