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Cable Construction
ConductorClass 5 flexible copper conductor according to BS EN 60228 (previously BS 6360)
InsulationRubber Compound Type E14 according to BS EN 50363
SheathRubber Compound Type EM3 according to BS EN 50363

Dimensions

No. of CoresNominal Cross Sectional Area mm²Nominal Thickness of Insulation mmNominal Overall Diameter mmNominal Weight kg/km
20.750.66.153
210.66.664
21.50.87.895
22.50.99.2140
24110.8180
30.750.66.665
310.6777
31.50.88.4115
32.50.99.9170
34111.7240
36113.3320
40.750.67.380
410.67.695
41.50.89.4145
42.50.911.1210
44113300
46114.5405
50.750.68.1100
510.68.4115
51.50.810.3170
52.50.912.4255
54114.5355

Class 5 Flexible Copper Conductors for Single Core and Multi-Core Cables
Nominal Cross
Sectional Area mm²
Maximum Diameter of Wires in Conductor mmMaximum Resistance
of Conductor At 20ºC
Plain Wires ohms/km
0.750.2126
10.2119.5
1.50.2613.3
2.50.267.98
40.314.95
60.313.3

Current Carrying Capacity and Mass Supportable
Nominal Cross Sectional Area mm²Current Carrying CapacityMaximum Mass Supportable By Twin Flexible Cable
(See Regulations 522.7.2 and 559.6.1.5 of the 17th Edition of IEE Wiring Regulations)
kg
Single-Phase AC
Amps
Three-Phase AC
Amps
0.75663
110105
1.516165
2.525205
432255
The table above is in accordance with Table 4F3A of the 17th Edition of IEE Wiring Regulations.

Voltage Drop

Nominal Cross
Sectional Area mm²
DC or Single-Phase AC
mV/A/m
Three-Phase AC
mV/A/m
0.756254
14640
1.53227
2.51916
41210
The table above is in accordance with Table 4F3B of the 17th Edition of IEE Wiring Regulations.

De-Rating Factor for Ambient Temperature 60°C Thermoplastic or Thermosetting Insulated Cords

Air Temperature °C
3540455055
DE-RATING FACTOR0.910.820.710.580.41
The table above is in accordance with Table 4F3A of the 17th Edition of IEE Wiring Regulations

 

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