Porcelain
pin type insulator consists of a single piece of ceramic or two more ceramic components permanently connected together and intended to mounted rigidly on a supporting structure by an insulator pin/spindle. Unless otherwise stated, this term does not include the insulator pin. Normally, porcelain pin type insulators are used on upon 69kv distribution lines. Pin type insulator can be Zinc thimble with thread type and porcelain thread type.
The types of porcelain pin type insulator are 55-1/2/3/4, 56-1/2/3/4, P-11/15/22/33-Y, PW-15/22/33-Y.
|
Type |
55-1 |
55-2 |
55-3 |
55-4 |
55-5 |
|
Creepage distance mm |
102 |
127 |
178 |
229 |
305 |
|
Flashover
Voltage
kV |
Power frequency |
Dry |
35 |
45 |
55 |
65 |
80 |
|
Wet |
20 |
25 |
30 |
35 |
45 |
|
50% impulse |
Pos. |
50 |
70 |
90 |
105 |
130 |
|
Neg. |
70 |
85 |
110 |
130 |
150 |
|
Radio influence
voltage |
Test voltage to ground kV |
5 |
5 |
10 |
10 |
15 |
|
Max. RIV at 1000kHZ uv |
50 |
50 |
50 |
50 |
100 |
|
Low freq.
Puncture voltage kV |
|
50 |
70 |
90 |
95 |
115 |
|
Dry acring distance mm |
|
57 |
86 |
114 |
127 |
159 |
|
Cantilever failing load lb/kN |
|
3000/13 |
2500/11 |
2500/11 |
3000/13 |
3000/13 |
The technical data of porcelain pin type insulator 56-1/2/3/4
|
Type |
56-1 |
65-2 |
56-3 |
56-4 |
56-5 |
|
Creepage distance mm |
330 |
432 |
533 |
686 |
865 |
|
Flashover
Voltage
kV |
Power frequency |
Dry |
95 |
110 |
125 |
140 |
175 |
|
Wet |
60 |
70 |
80 |
95 |
125 |
|
50% impulse |
Pos. |
150 |
175 |
200 |
225 |
270 |
|
Neg. |
190 |
225 |
265 |
310 |
340 |
|
Radio influence
voltage |
Test voltage to ground kV |
15 |
22 |
30 |
30 |
44 |
|
Max. RIV at 1000kHZ uv |
100 |
100 |
200 |
200 |
200 |
|
Low freq.
Puncture voltage kV |
|
130 |
145 |
165 |
185 |
225 |
|
Dry acring distance mm |
|
178 |
203 |
229 |
279 |
356 |
|
Cantilever failing load lb/kN |
|
2500/11 |
3000/13 |
3000/13 |
3000/1 |
3000/13 |
The technical data of porcelain pin type insulator P-11/15/22/33-Y, PW-15/22/33-Y.
|
Type |
P-11-Y |
P-15-Y |
P-22-Y |
P-33-Y |
PW-15-Y |
PW-22-Y |
PW-33-y |
|
Nominal voltage kV |
11 |
15 |
22 |
33 |
15 |
22 |
33 |
|
Creepage distance mm |
255 |
298 |
432 |
630 |
432 |
673 |
900 |
|
Low freq.
voltage kV |
Dry flashover |
75 |
80 |
110 |
130 |
100 |
125 |
140 |
|
Wet flashover |
50 |
55 |
70 |
95 |
65 |
95 |
110 |
|
Impulse flashover kV |
Pos. |
115 |
130 |
175 |
215 |
150 |
190 |
210 |
|
Neg. |
150 |
175 |
225 |
290 |
|
|
|
|
Radio influence
voltage |
Test voltage to ground kV |
15 |
15 |
20 |
30 |
22 |
30 |
44 |
|
Max. RIV at 1000kHZ uv |
100 |
100 |
100 |
200 |
100 |
200 |
200 |
|
Cantilever failing load lb/kN |
11 |
11 |
11 |
33 |
11 |
11 |
11 |
|
|
|
|
|
|
|
|
|
|
Customers can choose the porcelain pin type insulator according to the technical data sheet, or give us the drawing, we also can produce pin type insulator as your requirements.
