U420B High VoltageToughened Suspension Glass Insulator
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Product Details
- Model:U420B
- U Refers To Disc Suspension Insulator
- 420 indicates a rated Mechanical failing load of 550kN
- B For Ball And Socket Type
- 205- indicates that the height of the insulator structure is 205mm.
- 360- indicates that the diameter of the insulator disc is 360mm.
- 550- indicates that the creepage distance of the insulator is 550mm.
- Type: Standard profile Toughened Suspension Type
- Rated mechanical load: 420kn (about 42tons)
- Purpose: Widely applicable as insulation support for medium and high voltage transmission lines and substation equipment, capable of stable operation under various climatic conditions.
- The product model is in accordance with IEC60383-1:1993，MOD / GB/T1001.1
- The connection structure is in accordance with GB/T4056-2008(IEC60120:1984,MOD) and BS 3288 part lll.
- According to customer requirements, the locking pin can be either W-pin or R-pin.
- lf there is no special instruction, R pin is used for U420B.
|
Item No. |
Mechanical failing load |
Nominal diameter |
Nominal spacing |
Nominal creepage distance |
Standard coupling |
Individual tensile load test |
Wet power frequency withstand voltage |
Dry lightning impulse withstand voltage |
Impulse puncture voltage |
Power frequency puncture voltage |
Radio interference voltage 10kv 1mhz |
Corona visual test |
Power frequency electric arc voltage |
Net weight |
|
kN |
D(mm) |
H(mm) |
L(mm) |
|
kN |
kV |
kV |
P.U |
kV |
μV |
kV |
|
kg |
|
|
U40B |
40 |
178 |
110 |
190 |
11 |
20 |
25 |
50 |
2.8 |
90 |
50 |
18/22 |
20kA |
2.1 |
|
U70BS U70B/127 |
70 |
255 |
127 |
320 |
16 |
35 |
40 |
100 |
2.8 |
130 |
50 |
18/22 |
20kA |
3.8 |
|
U70BL U70B/146 |
70 |
255 |
146 |
320 |
16 |
35 |
40 |
100 |
2.8 |
130 |
50 |
18/22 |
20kA |
3.8 |
|
U100BS U100B/127 |
100 |
255 |
127 |
320 |
16 |
50 |
40 |
100 |
2.8 |
130 |
50 |
18/22 |
20kA |
3.9 |
|
U100BL U100B/146 |
100 |
255 |
146 |
320 |
16 |
50 |
40 |
100 |
2.8 |
130 |
50 |
18/22 |
20kA |
4.0 |
|
U120B/127 |
120 |
255 |
127 |
320 |
16 |
60 |
40 |
100 |
2.8 |
130 |
50 |
18/22 |
20kA |
3.9 |
|
U120B U120B/146 |
120 |
255 |
146 |
320 |
16 |
60 |
40 |
100 |
2.8 |
130 |
50 |
18/22 |
20kA |
4.2 |
|
U160BS U160B/146 |
160 |
280 |
146 |
400 |
20 |
80 |
45 |
125 |
2.8 |
130 |
50 |
18/22 |
20kA |
6.0 |
|
U160B U160BM U160B/155 |
160 |
280 |
155 |
400 |
20 |
80 |
45 |
125 |
2.8 |
130 |
50 |
18/22 |
20kA |
6.2 |
|
U160BL U160B/170 |
160 |
280 |
170 |
400 |
20 |
80 |
45 |
125 |
2.8 |
130 |
50 |
18/22 |
20kA |
6.5 |
|
U210B U210B/170 |
210 |
280 |
170 |
400 |
20 |
105 |
45 |
105 |
2.8 |
130 |
50 |
18/22 |
20kA |
6.7 |
|
U240B/170 |
240 |
280 |
170 |
400 |
24 |
120 |
45 |
105 |
2.8 |
130 |
50 |
18/22 |
20kA |
6.8 |
|
U300B U300B/195 |
300 |
320 |
195 |
485 |
24 |
150 |
50 |
155 |
2.8 |
130 |
50 |
18/22 |
20kA |
10.6 |
|
U420(400)B U420B/205 |
400 |
360 |
205 |
550 |
28 |
210 |
55 |
165 |
2.8 |
130 |
50 |
18/22 |
20kA |
14.0 |
|
U550B U550B/240 |
530 |
380 |
240 |
600 |
32 |
275 |
55 |
175 |
2.8 |
130 |
50 |
18/22 |
20kA |
21.5 |
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