RTV Anti pollution flashover coating gor Outdoor Insulators
- Excellent hydrophobicity and quick, balanced and lasting
hydrophobic migration property. Continuous water film will not be
formed even in atrocious weather (rainy, foggy, dewy, or drizzly).
- High anti pollution flashover voltage, anti electric arc, tracking
resistance, excellent electrical insulation;
- High strength; high adhesion; acid, alkali and salt resistance;
corrosion resistance to strong oxidizer;
- Ozone resistance, UV rays resistance, resistance to environmental
aging; non peeling, non cracking
- Formed inplace; convenient to use; meeting the needs of anti
pollution technology and measures for power transmission and
transformation equipment fields;
- Long effective operation time; easy to maintain; free cleaning
during the period of validity; high efficiency.
National Grid Construction and Operation［2006］1022 National Grid
Company Cross-region Grid’s Guidelines on the Anti pollution
Flashover Coating Application for External Insulation on Power
Transmission Equipment (Trial Implementation) DL/T627 Room
Temperature Cured Silicone Rubber Anti pollution Flashover Coating
Range of application
Products are mainly used in power system, substation and
transmission line insulator, power plants and substation equipment
and other electrical equipment insulation lasting antifouling
flash. Applicable to the environmental temperature to subzero 50
degrees Celsius to 100 degrees Celsius, all kinds of voltage grade,
ac and dc system under the condition of filth operation of
transformer substation and external insulation antifouling pedestal
transmission line equipment. To prevent flashover, improve
equipment insulation level.
Products are widely used in metallurgy, cement, chemical, mining
and salt fog and other pollution environment, also are used in the
500 kv and above system showed superior antifouling performance,
guarantee the safety of power grid.
Methods of Application
We suggested that on the condition of power cut by a construction
personnel who has professional construction qualification to
coating this product.
Before construction, the surface of the insulator should be
cleaned, they can’t have dust, grease, etc., and make sure the
Choose spraying or brush coating methods for construction, the
construction shall be carried out under the good weather.
Coating thickness may between 0.3 to 0.6 mm, coating should be
complete, no defects, and avoiding leakage.
After coating 45 minutes, the surface will be dry, when the
thickness does not meet the construction requirements, it can spray
and brush again after the surface dried. Fully cured 24 to 48
Storage and transportation
- Product packaging in a sealed metal container, need to keep in
dark, avoid heat and ventilation, dry environment.
- Shipment should be kept in dry and ventilated, prevent the sun and
the rain, transport according to the non-dangerous goods.
Electrical and power stations
Urban rail transit
High speed rail, subway