The one refers to a single strand of # 18 wire. If there were 2 wires it would be referred to a 2C 18, three conductor would be referred to as 3C 18 and so on up to as many wires that are in a cable set.
#1 copper thhn
1/0 copper
1" 1/2 EMT for 1/0 copper wire, or 2" for 3/0 Alum wire or copper clad Alum.
30.5 milligrams copper wire (1 gram/1000 milligrams)(1 mole Cu/63.55 grams)(6.022 X 10 ^23/1 mole Cu) = 2.89 X 10^20 atoms of copper
You are probably thinking about 1/0 wire (1 ought wire). In copper it is rated at 175 amps and in aluminum 125 amps.
As of Aug 18, 2008 No 1 bare brite copper wire is around $3 per pound No 1 copper wire scrap is around $2.87 per pound Copper turning are around $2.28 per lb
As of Aug 18, 2008 Large Copper Motors are around $40 cents per lb No 1 bare brite copper wire is around $3 per pound No 1 copper wire scrap is around $2.87 per pound Copper turning are around $2.28 per lb
#1 copper thhn
Use AWG #1 copper service entrance wire and #4 copper ground wire.
its 10000kg
1/0 copper
1" 1/2 EMT for 1/0 copper wire, or 2" for 3/0 Alum wire or copper clad Alum.
30.5 milligrams copper wire (1 gram/1000 milligrams)(1 mole Cu/63.55 grams)(6.022 X 10 ^23/1 mole Cu) = 2.89 X 10^20 atoms of copper
11:59 am cst April 11, 2012 # 1 14AWG & Larger $ 3.22 lb # 2 14AWG smaller $ 3.10 lb Springfield MO # 1 14AWG & Larger $ 3.15 lb # 2 14AWG & smaller $ 3.10 lb Joplin MO
1 mm2 aluminium wire is not easy to buy but 1 mm2 copper wire is rated at 10 amps. Since the conductivity of aluminium is 7/12 that of copper, 1 mm2 aluminium wire would be rated at 7½ amps max (the same amount of heat is produced per metre by a current of sqrt(7/12) times that for copper).
For a typical use it would be 1/0 (one ought) wire in copper.
the light will turn on because of the electricity flow in the wire