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330
- 420
KV
COMPOSITE INSULATORS
Nominal System
Voltage
kV
Min. Creepage
Distance
mm
Section Length
mm
Arcing distance mm
Rated
Mechanical
tensile load
kN
Wet power
freq. 1 min.
withstand
voltage
kV
Dry lighting
impulse
withstand
voltage
kV
300
9075
2990
2596
100
570
1425
300
7260
2930
2536
100
570
1425
300
9075
2930
2536
100
570
1425
300
7260
2930
2476
160
570
1425
300
7260
2990
2536
160
570
1425
300
9075
2930
2476
160
570
1425
300
9075
2990
2536
160
570
1425
300
9075
2990
2536
160
570
1425
300
9075
2990
2476
210
570
1425
300
7260
2930
2416
210
570
1425
300
7260
2990
2476
210
570
1425
300
9075
2930
2416
210
570
1425
300
9075
2990
2476
210
570
1425
400
12040
3371
2977
120
680
1550
400
12591
3910
3516
120
680
1550
400
13608
3952
3558
120
680
1550
400
11400
3100
2706
120
680
1450
400
9090
3200
2806
120
680
1550
400
10400
3620
3226
120
680
1550
400
13633
3640
3246
120
680
1550
400
13380
3565
3111
160
750
1550
400
13380
3595
3141
160
750
1550
400
13068
3952
3498
160
680
1550
400
9090
2960
2506
160
680
1550
400
9270
3230
2776
160
680
1550
400
7628
2841
2327
210
680
1175
400
7148
2852
2338
210
680
1175
400
8000
3166
2652
210
680
1550
400
7970
3196
2682
210
680
1550
400
11400
3220
2706
210
680
1450
400
11890
3250
2736
210
680
1550
400
12037
3250
2736
210
750
1550
400
11400
3130
2616
210
680
1450
400
12037
3250
2736
210
800
1650
*
The design and material of end fittings
as per Standard / Customer requirement
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