Various materials cable resistance about values
On the international standard, cable conductor material requirements are oxygen-free copper, oxygen-free copper copper of high purity, high oxidation resistance, and resistance is small, the transmission effect is good. Comply with the material as a high quality cable.
In the weak current market, anaerobic copper cable conductor material is not limited to, in order to reduce costs, cable conductor material have iron aluminum, copper clad aluminum, high conductivity, copper silvering, full of copper and oxygen free copper, etc.
Iron and aluminum cable is the most common cable, have 2 packages for copper iron, 2 for copper clad aluminum. Copper clad aluminum, high conductivity, copper silvering are aluminum cables, copper clad aluminum cable is common material cable, high conductivity aluminum and copper silvering cables are imported aluminum cable, silvering copper cable is higher than the purity of high conductivity aluminum cables, transmission effect of medium, but the oxidation resistance is low.
All copper cables and oxygen-free copper cables are copper cable, pure copper cable conductor material is bronze, secondary recovery of copper, containing impurities, higher resistance.
1, SiTie four aluminum cables: resistance is about 150 Ω 300 meters, maximum transmission 60 meters.
2, copper clad aluminum cables: 300 meters would be about 72 Ω resistance, to sell cheap and transmission can be roughly 100 meters, poor oxidation resistance, long service life.
3, high conductivity aluminum cables: resistance would be about 60 Ω 300 meters, 150 meters can transmit, but poor oxygen resistance, long service life.
4, silvering copper cables: resistance would be about 45 Ω 300 meters, 180 meters can transmit, but poor oxygen resistance, long service life.
5, copper clad copper cables: resistance is about 110 300 meters Ω, probably can transmit 80 meters, the oxidation resistance is strong, long service life.
6, oxygen-free copper cables: 30 Ω resistance is about 300 meters of less than, can transfer about 120-150 meters, the oxidation resistance is strong, long service life.