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PRTV RTV RTV-II for protecting power lines from pollution flashover

China Kayi Industrial Co., Ltd.
China Kayi Industrial Co., Ltd.
Province/State: Jiangsu
Country/Region: China
Contact Person:Mr Warren

PRTV RTV RTV-II for protecting power lines from pollution flashover

Brand Name : KDW
Model Number : KDW-168 KDW 985
Place of Origin : CHINA
MOQ : 1 kg
Price : USD 15-35 PER KG
Payment Terms : L/C, T/T
Supply Ability : 500 TONS PER MONTH
Delivery Time : 10-30 DAYS
Packaging Details : Metal bucket or cans
To be used in : Substations Transmission lines Distribution lines
Color : Grey or red
Package : Metal bucket or can
Standards : IEEE Std 1523-2002
Material : Liquid silicon rubber
Tests : All type tested
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Anti pollution flashover coating

Storage and transportation

1. The product is packed in sealed metal containers. It should be stored in a space that is dark, away from heat, dry and ventilated.

2. Dryness, ventilation and avoidance from the sun and rain should be guaranteed during transportation. Transported as non-dangerous goods.

Anti pollution flashover coating

Ⅳ Use range

The product is mainly used for the eternal insulators’ enduring ant-ipollution flashover in power systems, transformer substations, transmission line insulators, power plants, Power user s’ substation equipment and other electrical equipment. It is applicable for the eternal insulation antipollution flashover for socket transmission line equipment, transformer substation of various voltage levels or AC, DC systems that all operate under contaminated conditions at the environment temperature between -50℃~100℃. It prevents flashover and connection and improves the levels of the external insulation of the equipment.

The product is also widely used in various polluted environments such as metallurgy, cement, chemical industry, mine and salt mist etc.. It is largely used in systems of and above 500KV and performs excellent anti-pollution flashover property, and therefore guarantees secure operation of the power grid.

Ⅴ. Use method (application site)

  1. We suggest that the product should be coated in power-off state by application personnel who have obtained professional application qualifications.
  2. The surface of the insulators should be cleaned before the application and the surface should be guaranteed to be dry without dust or oil etc..
  3. Application methods such as spraying and brush coating etc. can be adopted and the application work should be carried out in sunny weather.
  4. The thickness should be 0.3--0.6mm, and the coating should be complete, not defected and not missed.
  5. The surface will dry out in 45 minutes after coating. If the coating thickness does not achieve the project requirement, spraying or brush coating can be carried out again. It solidifies in 24--48 hours.


PRTV Specifications


1, How long you can guarantee your PRTV coating on ceramic insulators of substation equipments?

15 years

2, How long the client will need to wash their equipment after PRTV coating in below mentioned areas?

AreaEstimated time need to wash (year)
Cement Factories10
Petrochemical Plants10-12
Heavy Polluted Areas10-12
Polluted Areas15

3, If the minimum required thickness of PRTV on ceramic insulators of high voltage equipments in substations is 500 micron (Dry Film Thickness - DFT). To reach to this thickness, how much is your recommended weight for square meter?

1.4 kg/m2

4, What is your estimated time to do the PRTV coating of each bay of substations? ( line bay , transformer bay …)

Each Bay of Substation

Estimated time to do

the execution works (Hours)

How many person you need
63 kV83
132 kV84
230 kV85
400 KV88

5, What is your estimated area of ceramic surface in square meter for below mentioned equipments of high voltage substations?

One Piece.

Each Equipment of Substation




Voltage Transformer


Current Transformer


Surge Arrester


63 kV1.5 kg6.0 kg4.7 kg3.5 kg
132 kV2.4 kg10.8 kg8.5 kg6.0 kg
230 kV5.0 kg22.5 kg17.5 kg12.5 kg
400 KV8.0 kg36.0 kg28.0 kg20.0 kg


1, Transmission lines

2, Substations

Competitive Advantage:

Because most of the insulators/surge arrestors/CT/PT/ in most of the transmission lines in the world are ceramic insulators and glass insulators. Because these two kinds of insulators do not have good anti-pollution performance, so the utility has to wash it every year even shut down the lines. Which can cause huge cost and lose to the utilities. RTV/PRTV products-- which is used to clean the surface of the ceramic insulators/SA/CT etc big products in the power substations and transmission lines that the utilities have to wash it every year. If we use these products, then there will be no need for them to wash it every year[after applying for this coating, then at least 10 years there is no need to wash it again]. So they can save time, money and also no need to shut down the power lines.

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