CUT THROUGH TEST FOR ENAMELLED ROUND COPPER WINDING WIRES 
(BASIS : IS 13730 - .. & IS 13778 - 6)
Nominal Conductor
Diameter
Load Specimen Loading Time for
Insertion
until
Loading
(s)
Temperature  C (2 min. withstand) Requirement
Part 3
Polyester
Copper Wires
Class 155
Part 8
Polyesterimide
Copper Wires
Class 180
Part 13
PE (PEI) + PAI
Copper Wires
Class 200
(mm) (SWG)
Over Up to &
Including
From Up to &
Including (g) (N)
0.020 0.032 - 49 25 0.25 P 1 240 300 320
0.032 0.050 - 48 41 0.40  
0.050 0.080 47 45 71 0.70
0.080 0.125 44 40 128 1.25
0.125 0.200 39 36 224 2.20
0.200 0.315 35 30 224 2.20 P 1
0.315 0.500 29 26 459 4.50  
0.500 0.800 25 22 918 9.00
0.800 1.000 21 20 1836 18.00
1.000 1.250 19 18 1836 18.00 2
1.250 2.000 17 15 3672 36.00
2.000 5.000 14 - 7140 71.00 3
             
Note: In view of continuous improvements in design & process specifications given above are subject to change without notice.