Transmission of high-voltage power requires an HV or high
voltage cable, which come in different varieties and lengths. Shorter cables
are used for devices and equipment. Large plants, ships, and establishments
have very long and extensive network of cables. High-voltage cables are
ubiquitous. Manufacturers have developed these wires so that they become less bulky
and more flexible. There is a growing need for the high-voltage flexible cable, which is easier to work with.
High-voltage wires now don’t have to come too stiff. For
instance, silicone cables now come with high flexibility and excellent
insulation, yet still capable of transmitting high-voltage power.
High-voltage wires are generally thick. Thick wires have low
resistance and thus are able to pass electric current without accumulating
significant heat. The insulation must be made of tough material to avoid fatal
electrocution upon contact. Although these cables are imbedded inside
insulation walls, there will be times when people will come in contact with
them. Electrical technicians doing cable installations, inspections, and
repairs will intentionally come in contact with these cables.
High-voltage wires are susceptible to the damaging effects of corona discharge. Thus, their insulation should be
so designed as to be more resistant to corona discharge. Reducing such damage
is possible through designing the cables appropriately. A known method involves
covering the conductor in semi-conductive casing, a procedure that increases
the conductor’s thickness and eliminates the gap between the insulation casing
and the conductor.
High-voltage wires come in different designs to meet
different applications. Many companies make customized cables that fit the
unique needs of the client. Manufacturers usually provide high-voltage wires
for other companies, such building companies, laboratories, and hospitals.
Customers need to discuss their specific with the
manufacturer so that they get the right cable, because cables used for
laboratories have different specifications from those used for movie sets and
concerts. In latter cases, cables that are used need to be really flexible so
they can be easily removed from a location and reinstalled in the next
location. Hence, a super flex wire is the likely option.
Apart from being flexible, cables must be friction-resistant.
The insulating casing will always come in contact with smooth or rough
surfaces, which will gradually cause wear. People always drag, move, and step
on wires. Wires with poor casing can easily get torn. Worn wires are a hazard.
Makers of high voltage cable wires encase conductors in polyurethane material,
which doesn’t easily get worn, thus giving the wires a higher degree of safety
and longevity. Tough encasing is also necessary to resist high-voltage stress,
which also cause gradual wear of the insulation.
