Due to the recent developments in the underground systems, the underground cable network has gone through major changes. But we need a wholesome cable to fight harsh conditions. For this, one needs a smooth and reliable cable alternative like a Steel Wire Armoured Cable (SWA). It is completely immune from all kinds of mechanical damage, unlike unarmoured cables.
SWA or Steel Wire Armoured Cables are power and auxiliary control cable that has been designed to be functional in the area of mains supply electricity. It comes in two versions 11Kv and 33Kv cable. Due to exceptional mechanical protection, SWA has various applications like cable networking, control systems, outdoor and domestic applications, and ducting. Due to its toughness against mechanical abrasion, it is mostly used outdoors. SWA has become the standard cables for underground installations. Let’s go through some of the additional characteristics that make it such an all-purpose.
Steel Wire Armoured Cable has strong
armor that reduces the risk of getting pinched or damaged. The properties of
steel add to the protection of armored cables. The weight of Steel Wire
Armoured Cables is heavier than basic armored cables. This further improves the
rigidity of the cable and makes it difficult to bend it. Such high rigid cables
are required for underground cabling. SWA cables are also known by some other
common names like Booklet Armoured Cable, Maines Cable, and Power Cable.
The steel used in Steel Wire Armoured
Cables is galvanized that acts as an additional earth layer. Due to so many
exceptional properties, Steel Wire Armoured cables are preferred over
Unarmoured cables. Earlier, when unarmoured cables were used more frequently,
there were more attacks of rodents and other animals. But no animal can chew
Steel Wire Armoured Cables due to their toughness and rigid protection.
SWA cables have an additional layer
for RF (Radio Frequency) protection. Such a feature is very uncommon among all
the cables and powerful. Apart from this, they are a great means of earthing or
grounding. Such a feature is known as a circuit
protective conductor or CPC.
Applications
of Steel Wire Armoured Cables
There are many areas and domains where
SWA cables find their applications. The most common application is in sewers
and underground transport networks. As SWA cables have the feature of LSLH (low
smoke, low halogen), it is best suitable to be used in public places. This
incredible sheathing feature lets the cable emit low smoke and halogen in case
of any fire. Thus, Steel Wire Armoured Cables are a safe alternative when it
comes to be used places where there inflammable elements around.
Steel wiring cables can also be seen
used in multicore cables. This is because steel is magnetic and a magnetic
field is produced every time the current is passed. But sometimes, steel gets
overheated and can lead to a fire. Then comes the role of aluminum in such
cases.
As SWA cables resist to bend are the
best choice wherein wiring is needed to be touched by the curves and walls. At
last SWA cables are so affordable and economical in all sense.
For more information on Steel Wire
Armoured Cables, get in touch with us at http://www.rajasthanelectric.com/contact-us.html
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