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Porcelain Insulators

Line Post Insulators

1) We offer high quality line post insulators according to IEC, ANSI,AU standards or  customers' specfications.

2)we supply different type of line post insulators with clamp top or tie top .
3) The  line post insulators can be made up to 145kV , 20KN in both horizational or vertical type.

3)The line post insulator colour can be  brown, light gray ,white,blue etc.

5)The stud is available if needed.

6) We supplies hugh quantity ANSI 57 Serials product in all over the world . for example :


ANSI 57-1 , ANSI 57-2, ANSI 57-3,ANSI 57-4 , ANSI 57-5 , ANSI 57-6,

ANSI 57-11, ANSI 57-12,ANSI 57-13,ANSI 57-14,ANSI 57-15,ANSI 57-16

ANSI 57-21, ANSI 57-22,ANSI 57-23,ANSI 57-24,ANSI 57-25,ANSI 57-26

ANSI 57-31, ANSI 57-32,ANSI 57-33,ANSI 57-34,ANSI 57-35,ANSI 57-36

Related long bolt or short bolt available .

line post 57 F.jpg


Post   insualtor designation Lower   frequency flashover voltage Critical impulse   flashover voltage
    Pos.(kV)
Radio   Influence Voltage Minimum nominal   creepage distance
    (Inch)
Dry arc distance
    (Inch)
Reference height   of  insulator
    (Inch)
Cantilever   strength
    (lb)
Dry
    (kV)
Wet
    (kV)
Test   Voltage
    (kV)
Max   RIV2
   
(μV)
57-1 70 50 120 15 100 14 6-1/2 9 2800
57-2 100 70 160 22 100 22 9-1/2 12 2800
57-3 120 95 200 30 200 29 12-1/4 15 2800
57-4 140 110 230 44 200 40 14-1/2 17 2800
57-5 160 130 265 44 200 45 17-1/4 20 2800
57-6 180 150 300 44 200 53 19-1/4 23-1/2 2800
57-11 70 50 120 15 100 14 6-1/2 10 2800
57-12 100 70 160 22 100 22 9-1/2 13 2800
57-13 125 95 200 30 200 29 12-1/4 16 2800
57-14 140 110 230 44 200 40 14-1/2 18-1/2 2800
57-15 160 130 265 44 200 45 17-1/4 21-1/2 2800
57-16 180 150 300 44 200 53 19-1/4 24-1/2 2800
57-21 70 50 120 15 100 14 6-1/2 11 2800
57-22 100 70 160 22 100 22 9-1/2 14 2800
57-23 125 95 200 30 200 29 12-1/4 16.5 2800
57-24 140 110 230 44 200 40 14-1/2 20 2800
57-25 160 130 265 44 200 45 17-1/4 22-1/2 2800
57-26 180 150 300 44 200 53 19-1/4 25 2800
57-31 70 50 120 15 100 14 6-1/2 11 2800
57-32 100 70 160 22 100 22 9-1/2 14 2800
57-33 120 95 200 30 200 29 12-1/4 16-1/2 2800
57-34 140 110 230 44 200 40 14-1/2 20 2800
57-35 160 130 265 44 200 45 17-1/4 22-1/2 2800
57-36 180 150 300 44 200 53 19-1/4 25 2800



Download Files:
ANSI porcelain line post insulator catalog.pdf