copper vs aluminum wire size chart
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What is the difference between aluminium and copper wire armoured cable?
An example using a 35 mm 3-core steel wire armoured cable. From Table 1 it can be seen that, size for size, aluminium cable is smaller and lighter than copper except for the current rating which is very much lower. This means that a larger cable size must be selected if aluminium is to be used.
How to choose the right size of aluminium cable?
When selecting the correct size of aluminium cable the impedance must be carefully evaluated. An example using a 35 mm 3-core steel wire armoured cable. From Table 1 it can be seen that, size for size, aluminium cable is smaller and lighter than copper except for the current rating which is very much lower.
What are the wire size and amp ratings?
Wire Size Amp Ratings Wire Gauge Size Copper 60C (140F) – NM-B, UF-B Copper 75C (167F) – THW, THWN, SE, USE … Copper 90C (197F) – THWN-2, THHN, XHHW … Aluminum 75C (167F) – THW, THWN, SE, U … 14 15 15 15 – 12 20 20 20 15 10 30 30 30 25 8 40 50 55 40 16 more rows …
Is aluminum wiring stronger than copper?
Like copper, aluminum is conductive, so it鈥檚 become a common material used in the construction of electrical wiring. Unfortunately, aluminum wiring isn鈥檛 as strong as copper wiring, and it also has a higher thermal expansion coefficient.