U300B (195/320/485) Glass Insulator
Thanks to its excellent mechanical strength and anti-pollution performance, the U300B Disc Suspension Toughened Glass Insulator is well-suited for the following conditions:
Voltage Levels: Suitable for 110kV, 220kV, and even 500kV high voltage (HV) and extra-high voltage (EHV) transmission lines.
Environmental Conditions:
Heavily Polluted, Coastal, and Industrial Areas: With a long creepage distance of 485mm and a glass surface that resists contamination, it effectively prevents "pollution flashover" in environments with salt fog, chemical pollutants, or heavy dust.
Various Climatic Conditions: The design ensures stable operation in complex weather conditions such as rain, snow, and lightning.
- Brand: QOCI
- Catalog ID: UG300B195/485N
- Type: Standard Type
- Material: Glass Dielectric ， Forged steel cap & pin
- Place of Origin: Jiangxi
Product Information
IEC Stand :U300B
| U | Disc Suspension Insulator |
| 300 | Mechanical failing load of 300kN |
| B | Ball And Socket Type |
| L | Longer steel pin，Assembled to achieve a product structural height of 195mm. |
Dimensional data
|
Spacing(S) |
195mm |
|
Diameter(D) |
320mm |
|
Creepage distance (L) |
485mm |
|
Socket coupling |
24mm |
Mechanical values
|
Mechanical failing load |
300kN |
|
Mechanical residual strength |
240kN |
Electrical Values
|
Dry power frequency withstand voltage |
75kV |
|
Wet power frequency withstand voltage |
45kV |
|
Dry lightning impulse withstand voltage |
110kV |
|
Power frequency puncture voltage |
130kV |
Radio-influence Voltage
|
RIV test voltage rms to ground Maximum RIV at 1000 kHz: |
10 kV 50 μV |
|
Corona visual lest P/C |
18/22 KV |
|
Power frequency electric arc voltage |
0.12s/20kA |
Packing information
|
Net weight |
10.6kg |
|
Carton Quantity: |
3pcs |
-
3pcs/Crate
-
3pcs/Crate
-
3pcs/Crate
Industry Standard(s)
Manufactured accordance with IEC60383-1:2023，MOD / GB/T1001.1
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