Dear customers,
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IEC designation |
U70B/127 |
Diameter D |
mm |
255 |
Height H |
mm |
127 |
Creepage distance L |
mm |
320 |
Socket coupling |
mm |
16 |
Mechanical failing load |
kn |
70 |
Mechanical routine test |
kn |
35 |
Wet power frequency withstand voltage |
kv |
40 |
Dry lightning impulse withstand voltage |
kv |
100 |
Impulse puncture voltage |
P.U |
2.8 |
Power frequency puncture voltage |
kv |
130 |
Radio influence voltage |
μv |
50 |
Corona visual test |
kv |
18/22 |
Power frequency electric arc voltage |
ka |
0.12s/20kA |
Net weight per unit |
kg |
3.5 |
Type |
Diameter (mm) |
Structural Height (mm) |
Creepage Distance (mm) |
Coupling Size (mm) |
Specified Mechanical Load(kN) |
Dry Power Frequency Withstand Voltage 1 minute (kV) |
Wet Power Frequeney WithstandVoltagesingle unhit /shorlt 'string with 5 PCS (kV) |
Dry Lightning Impullse Withstand Voltagesingle unit /short string with SPCS (kV) |
Min power Frenquency Puncture Voltage (kV) |
Net Weight Per Unit(kg) |
U70B/146 |
255 |
146 |
320 |
16 |
70 |
70 |
40/180 |
100/420 |
130 |
3.6 |
U100B/146 |
255 |
146 |
320 |
16 |
100 |
70 |
40/180 |
100/420 |
130 |
3.6 |
U120B/146 |
255 |
146 |
320 |
16 |
120 |
70 |
40/180 |
100/420 |
130 |
3.6 |
U160B/155 |
280 |
155 |
400 |
20 |
160 |
75 |
45/200 |
110/500 |
130 |
6.5 |
U210B/170 |
280 |
170 |
400 |
20 |
210 |
75 |
45/200 |
110/500 |
130 |
7 |
U240B/170 |
280 |
170 |
400 |
24 |
240 |
75 |
45/200 |
110/500 |
130 |
7.2 |
U300B/195 |
320 |
195 |
485 |
24 |
300 |
85 |
50/200 |
130/500 |
130 |
9.7 |
U300B2/195 |
330 |
195 |
550 |
24 |
300 |
90 |
55/200 |
140/550 |
130 |
10.8 |
U420B/205 |
360 |
205 |
550 |
28 |
420 |
90 |
55/200 |
140/550 |
130 |
13 |
U550B/240 |
360 |
240 |
635 |
32 |
550 |
95 |
55/200 |
150/650 |
130 |
17.5 |
U760B/280 |
400 |
280 |
710 |
36 |
760 |
100 |
60/260 |
150/720 |
130 |
26.3 |
U840B/300 |
400 |
300 |
710 |
40 |
840 |
100 |
60/260 |
150/720 |
130 |
27 |
Order Information: |
1. Voltage grade; 2.Specified mechanical load; 3.Creepage distance; 4.Power frequency withstand voltage; 5.Lightning Impulse Withstand Voltage; 6.Insulation distance; 7.Coupling type; |
Ps. Different end fittings could be supplied as customer requirements |