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Current Rating-300/500 V Flexible cords

Current rating and voltage drop of Cable given below are based on the IEEE wiring regulations 17th edition. For detailed information, reference should be made to Appendix 4 of above IEEE edition.

Currnt Carrying Capacity, Voltage Drop and Mass Supportable
Nominal Area of Conductor Current-carrying Capacity Voltage Drop Maximum Mass Supported by flexible cord
Single-phase a.c Three-phase a.c Single-phase a.c Three-phase a.c
Sq.mm  A  A mV/A/m mV/A/m kg
 0.5 3 3 100   86 2 
0.75  6   6    67  58 3  
1  10    10     50   43  5  
1.5  16    16     35   29  5  
2.5  25  20   21   17  5  
4  32  25  13   11  5  

Installation conditions for above Rating:
Maximum Conductor Temp. for PVC Type 5 Insulation            85°C
Maximum Conductor Temp. for PVC TI1/Type A Insulation      70°C
Ambient Air Temperature                                                     30°C
 
Rating factor for variation in Ambient temperature

Ambient temperature (°C) 25 30 35 40 45 50 55 60 65
 PVC Insulated Cable (85°C) 1 1 1 1 1 0.94 0.87 0.79 0.71
PVC Insulated Cable(70°C) 1 1 0.94 0.87 0.79 0.71 0.61 0.5 0.35