High Temperature Coatings
The corrosion protection of high heat areas associated with high temperatures is the perennial problem to the industry. Hir ThermoCoat range High Temperature Coatings protects the steel structural against atmospheric corrosion and under insulation corrosion up to 1000°C (1832°F). The coatings can even be sprayed to hot surface till 120°C (248°F). The excellent resistance to thermal shock as a result of rapid temperature cycling extends life expectancy of assets.
FeaturesThe key feature are: Rehabilitation instead of replacement, Safety enhancement as no dangers of hot work,
In-situ application - do jobs right on production line, fast and economical repairs, ease in application procedures, permanent solutions to countless applications, increased reliability, reduce the cost of plant shutdown, match metal color,
excellent resistance to aggressive chemicals, high compressive strength for mechanical applications.
High Voltage Insulation Coatings
Hir's High Voltage Insulation Coating is especially formulated to enhance your utility reputation with dependable, cost-effective high voltage distribution systems. Build the efficient transmission and distribution systems needed to meet growing global demands for electrical power.
Pollution of outdoor high voltage insulators is a common problem for utilities, with a considerable impact to power system reliability. A possible outage in a high voltage system usually corresponds to a severe impact to the power system. In an effort to prevent possible flashovers due to pollution, high voltage insulation coatings have been designed, aiming to improve the insulation performance, either by suppressing the formation of surface conductivity or by increasing the possible insulation level, since the coating can be installed at a time convenient for the utility and within its operational lifetime is capable of suppressing the pollution influence at any time.
Hir's InsulCoat high build PolySiloxane RTV coating specially designed to give electrical insulators long-term resistance to water filming and high level of flashover resistance under conditions of high voltage corona stress, even after extended periods of exposure to ultraviolet light.
ApplicationSalt and dust protection on electrical insulators Electrical connector insulation Corona discharge protection Bus-bar in control panels, on ceramic insulators Glass, Porcelain, Composite insulators Bushings prevents electrical leakages Contaminant caused flash overs Arcing caused surface damage On poles & cross arms, as Insulating coating in front of control panels
as replacement of rubber mats On current carrying conductors & similar live parts to avoid accidents
FeaturesFrom distribution to very high transmission voltage,
to be used over both old & new insulators (made of glass,
ceramic and composites) with excellent dielectric strength. Protect against insulation deterioration resulting from
particulate contamination that may occur from dust deposits,
salt particles, fog, salinity, high humidity or
other types of contaminants carried in the air. The arc resistance of the coating also
contributes to protection against glaze damage of insulators
when the coating's water repellant is significantly
diminished and arcing occurs.
High voltage infrastructure can benefit from:
|Superior arcing and ash over protection|
|Reduced leakage currents ensured by long-term hydrophobicity|
|Extended maintenance intervals for ceramic, porcelain, or glass insulators|
|Lower maintenance and replacement costs|
|Minimized equipment problems and failures|