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                              |  power cables |  |  
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                                    |  power cables  : 300/500V & 450/750V 2491B/6701B to BS 7211 ( H05Z-K, H07Z-K)  
                                        
                                          | Voltage rating:  | 2491B (H05Z-K) 0.5mm2 to 1.0mm2 - 300/500V  |  
                                          |   | 6701B (H07Z-K) 1.5mm2 and above - 450/750V  |  
                                          | Conductor:  | Flexible class 5 copper conductors to BS6360  |  
                                          | Insulation:  | Type EI5 low smoke, zero halogen, thermosetting insulation  |  
                                          | Insulation Colour:  | Black, Blue, Green/Yellow, Red, Yellow, White, Violet, Brown, Grey, Orange, Pink  |  
                                          | Temperature rating:  | +10 to +90°C |  
                                          | Minimum bending radius:  | Up to 10mm2 = 3 x overall diameter  |  
                                          |   | 10mm2 to 25mm2 = 4 x overall diameter  |  
                                          | Standards:  | BS7211 H05Z-K H07Z-K Cenelec HD22.9  |  
 
                                        
                                          | Nominal Cross Sectional Areamm2
 | Nominal Diameter of Strands mm
 | Nominal Thickness of Insulationmm
 | Nominal Overall Diameter mm
 | Nominal Weightkg/Km
 | Conductor Resistance aAt 20°C Max. ohms/Km
 | Insulation Resistance at 70°C Min. Mohms/Km
 |  
                                          | 1.5  | 0.26  | 0.7  | 2.9  | 21  | 13.3000  | 0.0100  |  
                                          | 2.5  | 0.26  | 0.8  | 3.5  | 33  | 7.9800  | 0.0090  |  
                                          | 4.0  | 0.31  | 0.8  | 4.0  | 47  | 4.9500  | 0.0070  |  
                                          | 6.0  | 0.31  | 0.8  | 4.6  | 66  | 3.3000  | 0.0060  |  
                                          | 10.0  | 0.41  | 1.0  | 6.0  | 111  | 1.9100  | 0.0056  |  
                                          | 16.0  | 0.41  | 1.0  | 7.0  | 165  | 1.2100  | 0.0046  |  
                                          | 25.0  | 0.41  | 1.2  | 8.7  | 254  | 0.7800  | 0.0044  |  
                                          | 35.0  | 0.41  | 1.2  | 9.7  | 343  | 0.5540  | 0.0038  |  
                                          | 50.0  | 0.41  | 1.4  | 12.2  | 494  | 0.3860  | 0.0037  |  
                                          | 70.0  | 0.51  | 1.4  | 14.0  | 678  | 0.2720  | 0.0032  |  
                                          | 95.0  | 0.51  | 1.6  | 15.2  | 895  | 0.2060  | 0.0032  |  
                                          | 120.0  | 0.51  | 1.6  | 17.2  | 1149  | 0.1610  | 0.0029  |  
                                          | 150.0  | 0.51  | 1.8  | 18.9  | 1416  | 0.1290  | 0.0029  |  
                                          | 185.0  | 0.51  | 2.0  | 21.0  | 1724  | 0.1060  | 0.0029  |  
                                          | 240.0  | 0.51  | 2.2  | 25.2  | 2285  | 0.0801  | 0.0028  |     |  |  
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