300/500V & 450/750V 2491B/6701B to BS 7211

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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°C 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 Area mm2 Nominal Diameter of Strands mm Nominal Thickness of Insulation mm Nominal Overall Diameter mm Nominal Weight kg/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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Caledonian Cables Limited

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