Specifications
ANSI Porcelain Line Post Insulator1.Porcelain material
2.Sample is available
3.Factory price
4.ANSI,DIN,AS,BS,SA
ANSI 57-5 Porcelain Line Post Insulator
About the Porcelain Line Post Insulator
As insulating and supporting conductor in HV transmission & distribution line, post insulators are divided into line post porcelain insulator, cross arm porcelain insulator and long rod suspension insulator etc. They have the characteristics of no puncture, high mechanical strength, excellent insulation and anti-pollution. This kind of insulator is safe and reliable in operation, simple in maintenance, long life in running and lower in price.
1.Certificated by IEC ANSI GB ISO9001
2.We can design and produce according to the drawings.
Technical drawings
Technical Specifications
Usual line voltage/kV | 66 | ||
ANSI Class | 57-5 | ||
Designation of Neck | N | ||
Height” A”/in(mm) | 20 (508) | ||
Diameter ”B”/in(mm) | 7 (178) | ||
Diameter ”C” /in(mm) | 5 (127) | ||
Thread ”D” /in(mm) | 3/4-10UNC | ||
Min. leakage distance/in(mm) | 45 (1145) | ||
Dry arcing distance/in(mm) | 17-1/4(438) | ||
Cantilever strength/lb(kN) | 2800 (12.5) | ||
Average flashover voltage | Low Frequency | Dry/kV | 175 |
|
| Wet/kV | 150 |
| Critical Impulse | Pos. /kV | 290 |
|
| Neg. /kV | 380 |
Withstand voltage | Low frequency | Dry/kV | 140 |
|
| Wet/kV | 120 |
| Impulse/kV | 235 | |
Radio influence voltage data | Test voltage/kV | 44 | |
| Max. RIV at 1,000kHz/uV | 200 | |
Net weight/lb(kg) | 46 (21) | ||
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2. We can design parameters.
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Contact me: Kevin Lin
Email me:lin@tcipower.com
Dalian Tucheng International Corp.
Dalian Composite Insulator Corp.
Tel: +86-411-82789881/2
Fax: +86-411-82789913
http://www.tcipower.com
http://tcipower.en.china.cn