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line post insulator
- vertical clamp type line post insulators are manufactured and tested to the requirements of ANSI Standard C29.7
- Color:brown and gray
MAIN DIMENSTIONS AND STANDARD PARTICULARS
|
ANSI Class |
57 -11 |
57-12 |
57-13 |
57-14 |
57-15 |
||
|
Leakage distance/ mm |
356 |
559 |
737 |
1015 |
1145 |
||
|
Dry arcing distance/ mm |
165 |
241 |
311 |
368 |
438 |
||
|
Cantilever strength/ kN |
12.5 |
12.5 |
12.5 |
12.5 |
12.5 |
||
|
Average flashover voltage |
Low-frequency |
Dry/kV |
80 |
110 |
125 |
150 |
175 |
|
Wet/kV |
60 |
85 |
100 |
125 |
150 |
||
|
Critical-impulse |
Positive/ kV |
130 |
180 |
210 |
255 |
290 |
|
|
Negative/ kV |
155 |
205 |
260 |
340 |
380 |
||
|
Radio-influence voltage date |
Test voltage to Ground/ kV |
15 |
22 |
30 |
44 |
44 |
|
|
Maximum RIV at 1.000kc/μV |
100 |
100 |
200 |
200 |
200 |
||
|
Net weight each approx./kg |
6.8 |
10 |
11.8 |
15.9 |
18/6 |
||
|
Number in standard package |
6 |
3 |
3 |
2 |
2 |
||
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