420kN U420B Suspension Electrical Glass Insulator for Power Line
420kN standard disc suspension glass insulator U420BL U420B 420kN Toughened Glass Insulator | Heavy Duty Suspension Type 420kN Suspension Glass Insulator U420B | IEC Standard for Power Lines High Strength U420B Glass Insulator | 420kN Ultra High Voltage Fitting Huayao strictly complies with GB, ANSI, BS, DIN, AS, IEC standard designs, app
- Materialfiberglass
- Applicationhigh voltage
- Rated voltage33kV
- UsageTransmission lines
- CertificateISO9001
- StandardIEC60383
- ColorJade green
Made by Jiangxi Huayao Electric Co., Ltd. in Luxi County, Jiangxi, China. Third-party inspection by Intertek, BV or SGS welcome.
What This Type Is For
Glass Standard Profile Suspension Insulators LXP-420 / U420B
Most line kilometres do not need a fog profile. The standard shed keeps cost and string weight down where pollution is light.
What You Get With This Unit
Material
Toughened glass shell with hot-dip galvanised cap and pin, cemented and cured.
Traceability
Routine tensile load test on every piece, with the process record kept against the production batch.
Main Technical Parameters
The full parameter table this type belongs to, copied from our factory data. The highlighted row is this item.
| IEC type | Diameter D (mm) | spacing H (mm) | creepage distance L(mm) | size of coupling (mm) | Mechnical failing load (kN) | Mechnical routine test (kN) | Power frequency withstand voltage DRY (kV) | Power frequency withstand voltage WET (kV) | lighting impulse withstand voltage (kV) | Min power frequency puncture voltage (kV) | Net weight per unit (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| U40B | 178 | 110 | 185 | 11 | 40 | 20 | 40 | 20 | 50 | 130 | 2.5 |
| U70BL/146 | 255 | 146 | 320 | 16 | 70 | 35 | 70 | 40 | 100 | 130 | 3.5 |
| U70BS/127 | 255 | 127 | 320 | 16 | 70 | 35 | 70 | 40 | 100 | 130 | 3.5 |
| U100BL/146 | 255 | 146 | 320 | 16 | 100 | 50 | 70 | 40 | 100 | 130 | 3.5 |
| U100BS/127 | 255 | 127 | 320 | 16 | 100 | 50 | 70 | 40 | 100 | 130 | 3.5 |
| U120B/146 | 255 | 146 | 320 | 16 | 120 | 60 | 70 | 40 | 100 | 130 | 3.6 |
| U120B/127 | 255 | 127 | 320 | 16 | 120 | 60 | 70 | 40 | 100 | 130 | 3.6 |
| U160BL/170 | 280 | 170 | 400 | 20 | 160 | 80 | 75 | 45 | 110 | 130 | 6.5 |
| U160B/155 | 280 | 155 | 450 | 20 | 160 | 80 | 75 | 45 | 110 | 130 | 6.3 |
| U160BS/146 | 280 | 146 | 400 | 20 | 160 | 80 | 75 | 45 | 110 | 130 | 6.3 |
| U210B/170 | 280 | 170 | 460 | 20 | 210 | 105 | 85 | 45 | 125 | 130 | 6.9 |
| U210B/170 | 280 | 170 | 400 | 20 | 210 | 105 | 75 | 45 | 110 | 130 | 6.9 |
| U240B/170 | 280 | 170 | 400 | 24 | 240 | 120 | 75 | 45 | 110 | 130 | 6.9 |
| U240B/170 | 280 | 170 | 460 | 24 | 240 | 120 | 85 | 50 | 110 | 130 | 6.9 |
| U300B/195 | 320 | 195 | 485 | 24 | 300 | 150 | 85 | 50 | 130 | 130 | 10.6 |
| U420/205 | 360 | 205 | 550 | 28 | 420 | 210 | 90 | 55 | 140 | 130 | 16 |
| U550B/240 | 380 | 240 | 620 | 32 | 550 | 275 | 95 | 55 | 145 | 130 | 21.5 |
Dimensions On One Sheet
The factory dimensional drawing shows shed profile, unit spacing, creepage path and the coupling detail. PDF drawings for the common types are on the downloads page, and a drawing for this type can be issued before you place an order.
Export Projects On Record
U420BL/205 Questions
Straight answers to the questions buyers ask before a first order.
What is the mechanical failing load of U420BL/205?
The specified mechanical failing load is 420 kN. Every unit takes a routine tensile load test before it leaves the plant.
Which standards does this toughened glass insulator follow?
Designs follow GB, ANSI, BS, DIN, AS and IEC dimensions. Type test reports are available from Xi'an High Voltage Apparatus Research Institute Co., Ltd. and the National Ceramic Product Quality Inspection and Testing Center.
Can I have the goods inspected before shipment?
Yes. Buyers are welcome to inspect in person, and Huayao accepts third-party pre-shipment inspection appointed by the buyer, including Intertek, BV and SGS.
What is the production capacity behind this item?
The plant runs one natural-gas electric melting kiln with a melting area of about 50 m² and two production lines, with an annual capacity of six million pieces of AC and DC glass insulators. Stock is held on common types.
What happens if a glass shell is damaged in service?
A toughened glass shell shatters and leaves the cap and pin carrying the line, so a zero-value unit can be spotted on a ground or helicopter patrol instead of a hot-line test.
Other Types In This Family
U70BL High Voltage 70 KN Electrical Glass Insulator
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PS70E 70kN EMS Anti Fog Type Corrosion Proof Disc Insulator Glass Type
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PSV70A High Voltage 70 KN Electrical Glass Insulator
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U40B 11kV CTV 175 HV 40 KN Glass Electric Insulator
View specifications →Quote U420BL/205
Send the quantity, the coupling size already specified and your destination port. We will come back with price, lead time and crate weights.