please give me the right answer thats for my assigment
Transmission cables here in the UK have been aluminium and a steel core for a long time - in fact all the time - Lower cost - Lower resistance - lower weight and greater tensile strength all are factors
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. Same here in the US. We've been using ACSR (Aluminum Conductor Steel Reinforced) for decades because it's cheaper than Cu, doesn't stretch as much, &c.