A friend sent me this ad, asking if I had one of these. Thought I'd share. (12 -15 " dia.) (( Interested in non-traditional suspensions? check out [id=352211591;silicone coated glass disc] ))

Patented product of the People's Republic of China A revolution of suspension insulator

Comparing with the traditional porcelain and glass insulator, our composite insulator has the following advantages: I. Excellent pollution flashover resistant performance Silicon rubber housing has excellent hydrophobicity and hydrophobe transference, which increase the power frequency wet flashover voltage and pollution flashover resistance. Through artifical pollution flashover voltage contrast test, it was found that the pollution flashover voltage of each disc of porcelain(glass) composite insulator was increased by 70% than the same type of traditional insulator. Meanwhile, the shed design of the product is reasonable, has good self-cleaning capacity of wind and rain, is slow in dirt retention, and especially in dirty environment such as dust, it demonstrate its advantages. This insulator is easy to adjust external insulation creepage distance and can meet the requirements of transmission line in heavy polluted area on the creepage distance of insulators. It can effectively prevent transmission lines from pollution flashover tripping accidents and ensure the safe operation of transmission lines.

II. Stable and reliable mechanical properties The end connecting hardware fittings(iron cap, steel pin) of this kind of insulator adopt the structure of cap and pin porcelain insulator. The internal porcelain core disc uses the porcelain of high strength(the glass core disc uses reinforced glass), so it has high strength after cementing, then ensure reliably the carrying and transmission of moment acting on the insulator. Test results showed that its mechanical properties were stable and reliable, fully met and even were higher than the standard of ceramic insulator.

III. Small volume, light weight, convenient transport and maintenance This series of products has the advantages of small volume and light weight. Comparing with the porcelain insulator and glass insulator, it can reduce 1/3 weight under the same number of using discs, thus reducing the installation labour intensity and load-bearing pressure of the iron tower. It can bear the bending moment well in tension string and mitigate the destruction of periodic impulse force on the iron tower.

IV. Reasonable structure, easy replace Add a concave slot in the design of iron cap on the basis of iron cap of porcelain(glass) composite insulator, which is easy for clamping by tool when this kind of insulator being intalled and replaced. The connecting size and structure height of iron cap and steel pin of this insulator are exactly same with those of porcelain insulator, . It can be used interchangeably with porcelain insulator, and very convenient to replace. The composite insulator can be replaced directly without adjusting the tower height and sag of original line, which significantly reduces the maintenance workload.

V. Long service life, true maintenance-free The porcelain(glass) composite insulator is true maintenance-free and overhauling-free. Traditional pollution flashover preventing measures are sparying RTV anti-pollution flashover paint on the surface of insulator, but the spraying works costs much time, labor and money, and need power outage of long time, and it should be resprayed every 6-7 years. Our composite insulator can be used for more than 30 years without replacement and need no preventive insulation monitoring test and periodic scheduled power outage for pollution cleaning, which reduce the workload of routine maintenance and the accident probability during line maintenance, and the transmission line can work safely in heavy polluted area.

http://www.made-in-china.com/showroom/liwangchina/companyinfo/Qingzhou-Liwang-Electric-Technology-Co-Ltd-.html