ANSI 52-8 Ball and socket type
Ball and socket type suspension porcelain insulators( ANSI Class ) |
ANSI Class |
|
52-3 |
52-5 |
52-8 |
52-11 |
Coupling size |
|
Type B |
Type J |
Type K |
Type K |
Dimensions |
Diameter(D) |
mm |
254 |
254 |
254 |
280 |
Spacing(H) |
mm |
146 |
146 |
146 |
155 |
Creepage distance |
mm |
320 |
320 |
320 |
380 |
Dry arcing distance |
mm |
197 |
197 |
197 |
216 |
Mechanical Values |
Combined M&E strength |
kN |
67 |
111 |
178 |
222 |
Dry arcing distance |
mm |
197 |
197 |
197 |
216 |
Impact strength |
nm |
6.2 |
10 |
11.3 |
11.3 |
Routine proof test load |
kN |
33.3 |
55.5 |
89 |
111 |
Time load test value |
kN |
44.5 |
67 |
107 |
134 |
Maximum working load |
kN |
33.3 |
55.5 |
89 |
111 |
Electrical Values |
Low frequency dry flashover voltage |
kV |
80 |
80 |
80 |
80 |
Low frequency wet flashover voltage |
kV |
50 |
50 |
50 |
50 |
Critical impulse flashover voltage,positive |
kV |
125 |
125 |
125 |
125 |
Critical impulse flashover voltage,negative |
kV |
130 |
130 |
130 |
130 |
low frequency puncture voltage |
kV |
110 |
110 |
110 |
110 |
Radio influence Voltage Data |
Test voltage RMS to ground |
kV |
10 |
10 |
10 |
10 |
Maximum RIV at 1000kHz |
μv |
50 |
50 |
50 |
50 |
Packing and Shipping Data |
Net weight,approximate |
kg |
4.7 |
5.2 |
7.8 |
9.7 |