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- Item number: 436546 436546_8
|Price||Item number||Length in m||Ø in mm|
Single core cable H07VK with seawater resistant PVC insulation according to VDE 0281 part 3.... more
Product information "Electric cable"
Single core cable H07VK with seawater resistant PVC insulation according to VDE 0281 part 3. Rated voltage 450/750V. PVC self-extinguishing according to VDE0482-332-1-2, DIN EN 60332-1- 2/IEC 60332-1 (corresponds to DIN VDE 0472 part 804 test type B) Temperature range -40°C to +70°C. Copper, bare, finely stranded class 5 How is the optimum cable cross-section determined? To keep voltage loss and cable heating as low as possible, it is necessary to calculate the required cross-section. This requires the conductance of the copper (56) and the maximum permissible voltage loss. This is specified as 5% of the vehicle electrical system voltage for position lights (5% of 12V vehicle electrical system = 0.6V) or 7% for other consumers (7% of 12V vehicle electrical system = 0.84V). Formula: Cross-section = 2 x cable length x amperage (A) / 56 x voltage loss For a 25W / 12V position lamp with 12m cable length, the following equation results: 2 x cable length (12) x 2.1A (Watt / Volt) / 56 x 0.6V (5% on-board voltage).
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