A transmission line
is the material meduim or structure that forms
all or part of a path from one
place to another for directing the
transmission of energy, such as
electromagnetic wave or acoustic
waves. Example of transmission lines is wires.
There are different types of over head
conductors. The choice depends on the application. The following shows some of
over head conductors types:
—Bare
soft and hard drawn stranded
—
Soft drawn type is used for grounding
electrical systems, while
hard drawn type is used in over head distribution
networks.
All aluminium
conductors
Used for aerial distribute lines have relatively short spans, aerial
feeders and bus bars of substations.
—All
aluminium
alloy conductors
Used for transmission and distribution
networks, having relatively long spans.
Aluminium
conductor steel reinforced
Used for power transmission over long
distances
Conductors Comparison Between Different Types
of Aluminum
(for
185 mm2
Conductor as an example)
|
|
AAC
|
AAAC
|
ACSR
|
|
Tensile (KN)
|
43.66
|
71.55
|
85.12
|
|
Weight (Kg/Km)
|
671.1
|
670.3
|
980.1
|
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