52-3&52-5&52-8 are types of ANSI Socket&Ball type suspension insulators. QINGDAO COSINE is specialized in this field for over 10 years.
If you have any interest on suspension insulators, please contact me freely and we will make best price for you.
ANSI Class |
52-3 |
52-5 |
52-8 |
Porcelain Disc Diameter,D,mm |
254 |
254 |
280 |
Unit Spacing,H,mm |
146 |
146 |
146 |
Creepage Distance, mm |
292 |
292 |
305 |
Combined M & E Strength, KN |
67 |
111 |
160 |
Impact Strength, Nm |
6 |
7 |
10 |
Routine Proof Test Load, KN |
33.5 |
55.5 |
80 |
Time Load Test Value, KN |
44 |
67 |
107 |
Power Frequency Flashover Voltage |
Dry, kv |
80 |
80 |
80 |
Wet, kv |
50 |
50 |
50 |
Critical Impulse Flashover Voltage |
Pos., kv |
125 |
125 |
125 |
Neg., kv |
130 |
130 |
130 |
Power Frequency Puncture Voltage,KV |
110 |
110 |
110 |
Radio Influence Voltage Data |
Test Voltage to Ground, kv |
10 |
10 |
10 |
Maximum RIV at 1000KHZ, μv |
50 |
50 |
50 |
Net Weight, Each Approx., kg |
4.6 |
5.5. |
7.5 |