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Mercoledì, 17 Agosto 2022 11:29
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composite insulator
Amalgamated insulators are weather resistant and get
good self-cleaning properties throughout wind and rain, in order that they
require only one carbon dioxide check every 4-5 years and require
less time period for maintenance and outages.
Due to the higher tensile strength with the core rods, the overall weight of composite insulators is extremely light.
They weigh only 10-20% belonging to the weight of a stringed of porcelain insulators on the same voltage
class. Their length can be shortened by more or less 10%
at the same voltage level, which could greatly reduce the labor of workers in commuter and field operations.
Because of the small diameter of that umbrella skirt of composite insulators, the minimum arc
way away is smaller than that of porcelain insulator strings on the same length, and
the lightning resistance level can be smaller than that involving porcelain insulator strings belonging
to the same length. After any lightning strike, the only effect on the composite insulators can be some white galvanic corrosion; there is no change into
their insulating properties. However, attention have to be paid to the corrosion on the ends
of the tubing. The inner insulation mileage of composite insulators is almost add up to the outer insulation, plus the structure belongs to the number of anti-breakdown insulators,
so there's no problem of having to attempt zero-value insulators, which
tremendously reduces the operation in addition to maintenance workload.
The umbrella skirt and sheath material with the composite insulator is silicone rubber which includes
a low-energy surface. The composite insulator incorporates a large creepage distance, a small
umbrella skirt diameter, along with a hydrophobic and hydrophobic migrating surface.
Even in a moist and polluted environment, the umbrella skirt
surface of composite insulators doesn't form a continuous h2o film;
therefore, its anti-pollution performance is preferable to that of porcelain insulators. -
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