2007-09-11 03:47:41 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
You need at least 8 gauge.
2007-09-11 04:04:07 · answer #1 · answered by Keith P 7 · 0⤊ 0⤋
It depends on the wire type.
For types RH, RHW, RUH, THW, THWN, XHHW, USE, V, & MI; 8 gauge will carry 40 Amps
To really be on the safe side, ALL copper-clad aluminum types will carry 40 Amps, or better, at 6 gauge.
I've seen type THHN at Home Depot, and it is rated for 35 Amps with 10 gauge; 45 Amps at 8 gauge.
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2007-09-11 04:05:27 · answer #2 · answered by tlbs101 7 · 0⤊ 0⤋
If this is for a splice, I suggest cleaning both wires of any oxidation and soldering them together, then covering with heat shrink tubing for a watertight seal and insulation value also. If in a service panel, I would suggest terminal lugs. Be sure to service ALL aluminum wires annually because aluminum expands and contracts much more than copper and the connections will become loose over time and could cause fire.
2016-05-17 05:52:11 · answer #3 · answered by ? 3 · 0⤊ 0⤋
For solid copper, 8 gauge would do, but for aluminum you need 6 gauge.
2007-09-11 04:08:59 · answer #4 · answered by Anonymous · 0⤊ 0⤋
For single aluminum in free air:(table 3, Canadian electrical Code)
#8TW=45 amps
#8RW75,TW75=45 amps
#8R90,RW90,T90nylon=45 amps
Not more than 3 AL. conductors in raceway or cable, Table 4, CEC
#6TW= 40 amps
#6RW75,TW75= 50 amps
#6R90,RW90,T90 nylon=55 amps**
based on ambient temp of 30°C
2007-09-11 15:01:30 · answer #5 · answered by jesem47 3 · 0⤊ 0⤋