| Insulator type(IEC) |
Diameter *D |
Spacing *H |
Creepage Distance *L |
Size of Coupling |
Mechanical Failing Load |
Mechanical Routine Test |
| U70BL/146 |
255 |
146 |
320 |
16 |
70 |
35 |
| U70BS/127 |
255 |
127 |
320 |
16 |
70 |
35 |
| U100BL/146 |
255 |
146 |
320 |
16 |
100 |
50 |
| U100BS/127 |
255 |
127 |
320 |
16 |
100 |
50 |
| U120B/146 |
255 |
146 |
320 |
16 |
120 |
60 |
| U120B/127 |
255 |
127 |
320 |
16 |
120 |
60 |
| U160BL/170 |
280 |
170 |
400 |
20 |
160 |
80 |
| U160B/155 |
280 |
155 |
450 |
20 |
160 |
80 |
| U160B/155 |
280 |
155 |
400 |
20 |
160 |
80 |
| U160BS/146 |
280 |
146 |
400 |
20 |
160 |
80 |
| U210B/170 |
280 |
170 |
460 |
20 |
210 |
105 |
| U210B/170 |
280 |
170 |
400 |
20 |
210 |
105 |
| U240B/170 |
280 |
170 |
400 |
24 |
240 |
120 |
| U240B/170 |
280 |
170 |
460 |
24 |
240 |
120 |
| U300B/195 |
320 |
195 |
485 |
24 |
300 |
150 |
| U420/205 |
360 |
205 |
550 |
28 |
420 |
210 |
| Â |
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| Insulator type(IEC) |
Power Frequency Withstand Voltage (DRY) |
Power Frequency Withstand Voltage (WET) |
Lighting Impulse Withstand Voltage |
Min Power Frequency Puncture Voltage |
Radio Interference Voltage (10kV,1MHz) |
Corona Test (pin&cap) |
| U70BL/146 |
70 |
40 |
100 |
130 |
≤50 |
18/22 |
| U70BS/127 |
70 |
40 |
100 |
130 |
≤50 |
18/22 |
| U100BL/146 |
70 |
40 |
100 |
130 |
≤50 |
18/22 |
| U100BS/127 |
70 |
40 |
100 |
130 |
≤50 |
18/22 |
| U120B/146 |
70 |
40 |
100 |
130 |
≤50 |
18/22 |
| U120B/127 |
70 |
40 |
100 |
130 |
≤50 |
18/22 |
| U160BL/170 |
75 |
45 |
110 |
130 |
≤50 |
18/22 |
| U160B/155 |
75 |
45 |
110 |
130 |
≤50 |
18/22 |
| U160B/155 |
75 |
45 |
110 |
130 |
≤50 |
18/22 |
| U160BS/146 |
75 |
45 |
110 |
130 |
≤50 |
18/22 |
| U210B/170 |
85 |
45 |
125 |
130 |
≤50 |
18/22 |
| U210B/170 |
75 |
45 |
110 |
130 |
≤50 |
18/22 |
| U240B/170 |
75 |
45 |
110 |
130 |
≤50 |
18/22 |
| U240B/170 |
85 |
50 |
110 |
130 |
≤50 |
18/22 |
| U300B/195 |
85 |
50 |
130 |
130 |
≤50 |
18/22 |
| U420/205 |
90 |
55 |
140 |
130 |
≤50 |
18/22 |
Remark: *D, *H, *L, please refer to related product drawings.