1) Reduce investment. This kind of wire is relatively heavy and has better sag characteristics than other wires. Therefore, when applied to transmission lines, it can be properly increased in the pitch of transmission towers, thereby reducing the investment in laying lines.
2) long service life. Medium-strength aluminum alloy wire has a strong elongation, and after stretching still able to work under high depression. The reported loss of strength within the scope of Fan l can withstand. Because this kind of wire belongs to medium-strength wire, it is superior to low-strength wire in anti-overload capacity and also has great advantages in anti-fatigue.
3) Vertical load is small. Compared with ACSR, this conductor has the same vertical load under the same steam path and equivalent horizontal load of about 10% less than that of the steel core aluminum wire, so it is simpler in construction.
4) high work efficiency. All-aluminum wire is made of the same material, so when used in a pleasant circuit only need a follow-up bamboo will be able to protect its normal use. This material is 1-2 times as strong as aluminum in yield strength and can be relieved by compression-type splicing, lantern phenomenon or wire bulging in traditional applications. For the strong jumper, it can reduce the crimping work to a certain extent, so that work efficiency is significantly improved.
5) income less wear and tear. All aluminum alloy wire hardness is relatively high, has been able to achieve Brinell hardness of 85HB. Aluminum wire material is 2 times. This material is lighter than ACSR, which is used in the construction of transmission lines. The pay-off links reduce the surface friction and prolong the service life of the line. The high quality of the wire surface reduces the level of radio interference and corona loss during operation of the transmission line.
6) small power loss. The aluminum alloy wire used in transmission lines, although the DC resistivity is slightly higher than the hard aluminum wire about the extent of about 4.3% J gr but after the power, the aluminum alloy wire in diameter and ACSR is The same, the conductive cross section is higher than the ACSR, so in 20 degrees Celsius case, the DC resistance is slightly lower than the ACSR.
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