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Product Details:
Payment & Shipping Terms:
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| Name Of The Product: | RTV High Voltage Insulator Coating | Solid Content: | ≥%30 |
|---|---|---|---|
| Specific Gravity: | 0.92-1.42 G/cm3 | Tensile Strength: | 4.24 N/mm2 |
| Tear Strength: | 10.2 N/mm | Volume Resistivity: | 6.05*1013 |
| Color: | Red Or Grey | Application: | Transmission Lines Substations As Well As Railways |
| High Light: | rtv coating,insulator coating |
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Red / Grey High Voltage Insulator Coating , Electric Power Line Silicon RTV Coating
I: Guaranteed technical particulars:
| No. | properties | Test Method | unit | Minimum requirement |
Guaranteed Value |
| 1 | Solid content | DLT627-2012 | ≥%30 | 51 | |
| 2 | Solid volume | IEC | ≥%40 | / | |
| 3 | Shelf life | -- | Month | 12 | 12 Months |
| 4 | Tack free time | Minute | 45 | 25 Minutes | |
| 5 | Viscosity | DLT627-2012 | 500cp…..3000cp | / | |
| 6 | Specific gravity | DLT627-2012 | 0.5g/cm³….2g/cm³ | 0.92-1.42 g/cm3 | |
| 7 | Flash point | DLT627-2012 | 30°C…………45°c | 35 °c | |
| 8 | Skin-over time at 23°c | DLT627-2012 | 9min….40min | 20 min | |
| 9 | Water replellence | DLT627-2012 | 105°C…..130°C | 113.8° | |
| 10 | Arc resistance | DLT627-2012 | 180s ≥ | 191s | |
| 11 | Volume resistivity | DLT627-2012 | 1.2*10¹² | 6.05*1013 | |
| 12 | Application temp range | DLT627-2012 | -10°c…….+60°C | -50-200°C | |
| 13 | Colour material | -- | grey | GREY | |
| 14 | Dielectric constant at 50 HZ | DLT627-2012 | ≤3 | 2.0-2.1 | |
| 15 | Dissipation factor at 50 HZ | DLT627-2012 | ≤0.4 | 0.2-0.23 | |
| 16 | Contamination flashover resistance | DLT627-2012 |
U1(coated)/ U2(un coated) ≥1.5 |
2.03 | |
| 17 | Adhesion Ability Test | IEEE std 1523 | Pass | PASS | |
| 18 | Salt fog test | DLT627-2012 | h | 1000H | 5000H |
| 19 | Tensile strength | DLT627-2012 | N/mm² | 3 | 4.24 N/mm2 |
| 20 | Tear strength | DLT627-2012 | N/mm | 9 | 10.2 N/mm |
| No. | Subject | Guaranteed Value |
| 1 | Solid Content by Weight | 51 |
| 2 | Solid Content by Volume | / |
| 3 | Density -Uncured | 0.92 |
| 4 | Density Cured |
1.42 |
Anti pollution flashover coating
Ⅱ. Product characteristics
Ⅲ Implementation standard
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 For Insulators.
Anti pollution flashover coating
IV. Daily maintenance
1. During normal inspection work, if damage caused by mechanical external force occurs on the surface partly, the coating product should be reapplied or re-coated on the damage.
2. The hydrophobic property of the coating should be observed in foggy and dewy weather. If the hydrophobic angle is less than 90º or the angle disappears and does not recover in 48 hours, reapplication or re-coating work should be arranged to be done.
Anti pollution flashover coating
V: Notes
1. The packing barrel should be sealed instantly after opening or using and the coating should avoid prolonged exposure to the air in order to prevent the coating from curing.
2. The application work should be carried out in good sunny weather.To guarantee the application quality, application work is not allowed in rainy, foggy, sandy weather .
3. The insulator surface should be cleaned before coating. Grease, dust, moisture remains should be strictly eliminated on the insulator surface.
4. Dusty, spalling, peeling coating should be removed on the original coating when re-coating the insulator that has already been coated. The original coating which is invalid but with good adhesion has no necessity to be eliminated. Re-coating work can be done on it directly and the re-coating quality will not be affected basically.
ⅤI. Use method (application site)
Ⅶ.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.
VIII. Package information
Packing size:
5kilograms/metal pail
10kilograms/metal pail
Custom-made packing is also served.
