

300kV 500kV UHV DC U300BP Stain-resistant Suspension Electrical Glass Insulator
U300BP 300kN Stain Resistant Glass Insulator | Heavy Duty Suspension Insulator 300kN U300BP Stain-Resistant Anti-Pollution Toughened Glass Suspension Insulator for 330kV 500kV High Voltage Transmission Lines U300BP 300kN Stain-Resistant Fog Type Toughened Glass Suspension Insulator, IEC Standard High Voltage Electrical Insulator The produ
- Type codeU300BP/195
- Mechanical failing load300 kN
- Routine test load150 kN
- Nominal diameter D390 mm
- Unit spacing H195 mm
- Creepage distance L710 mm
- Coupling size24 mm
- Net weight per unit14.00 kg
- 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
300kN stain-resistant disc suspension glass insulator U300BP
Different from ordinary insulators, the U300BP model effectively resists surface staining, dust accumulation, chemical contamination and salt fog corrosion. It is the ultimate solution for severely polluted environments and high mechanical load projects, widely applied on
Coastal salt fog, cement dust and chemical fallout bridge a standard shed and cause flashover. A deeper fog profile buys creepage distance where washing is impractical.
What You Get With This Unit
Rated strength
Specified mechanical failing load of 300 kN, routine tested at 150 kN.
Creepage per unit
710 mm of leakage path in a single unit, so string creepage can be budgeted without guesswork.
Coupling
24 mm ball and socket coupling to match existing line hardware.
Shipping weight
14.00 kg net per unit, which sets crate weight and freight cost for the string.
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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| U70BP/146 | 260 | 146 | 400 | 16 | 70 | 35 | 80 | 45 | 110 | 130 | 5.00 |
| U70BLP/146 | 280 | 146 | 450 | 16 | 70 | 35 | 85 | 50 | 125 | 130 | 5.50 |
| U70BP/146 | 320 | 146 | 550 | 16 | 70 | 35 | 90 | 55 | 140 | 130 | 7.50 |
| U100BLP/146 | 260 | 146 | 400 | 16 | 100 | 50 | 80 | 45 | 110 | 130 | 5.00 |
| U100BLP/146 | 280 | 146 | 450 | 16 | 100 | 50 | 85 | 50 | 125 | 130 | 5.50 |
| U100BP/146 | 320 | 146 | 550 | 16 | 100 | 50 | 90 | 55 | 140 | 130 | 7.50 |
| U120BLP/146 | 260 | 146 | 400 | 16 | 120 | 60 | 80 | 45 | 110 | 130 | 5.00 |
| U120BP/146 | 280 | 146 | 450 | 16 | 120 | 60 | 85 | 50 | 125 | 130 | 5.50 |
| U120BP/146 | 320 | 146 | 550 | 16 | 120 | 60 | 90 | 55 | 140 | 130 | 7.50 |
| U160BSP/155 | 280 | 155 | 450 | 20 | 160 | 80 | 85 | 50 | 125 | 130 | 7.00 |
| U160BP/170 | 280 | 170 | 450 | 20 | 160 | 80 | 85 | 50 | 125 | 130 | 7.20 |
| U160BLP/170 | 320 | 170 | 550 | 20 | 160 | 80 | 90 | 55 | 140 | 130 | 9.20 |
| U160BP/155 | 320 | 155 | 550 | 20 | 160 | 80 | 90 | 55 | 140 | 130 | 9.00 |
| U160BSP/146 | 320 | 146 | 550 | 20 | 160 | 80 | 90 | 55 | 140 | 130 | 8.80 |
| U210BP/170 | 320 | 170 | 550 | 20 | 210 | 105 | 90 | 55 | 140 | 130 | 10.00 |
| U240BP/170 | 320 | 170 | 550 | 24 | 240 | 120 | 90 | 55 | 140 | 130 | 10.50 |
| U240BP/170 | 320 | 170 | 550 | 20 | 240 | 120 | 90 | 55 | 140 | 130 | 10.50 |
| U300BP/195 | 390 | 195 | 710 | 24 | 300 | 150 | 95 | 60 | 150 | 130 | 14.00 |
| U300BP/195 | 380 | 195 | 635 | 24 | 300 | 150 | 95 | 60 | 150 | 130 | 14.00 |
| U420BP/205 | 380 | 205 | 620 | 28 | 420 | 210 | 90 | 55 | 140 | 130 | 16.50 |
| U550BP/240 | 380 | 240 | 650 | 32 | 550 | 275 | 95 | 55 | 145 | 130 | 20.50 |

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
U300BP/195 Questions
Straight answers to the questions buyers ask before a first order.
What is the mechanical failing load of U300BP/195?
The specified mechanical failing load is 300 kN, and the routine test load is 150 kN.
How much creepage distance does this unit give me?
One unit gives 710 mm of creepage distance at 195 mm unit spacing. Multiply by the number of units in the string and compare the total against the mm per kV your pollution class requires.
Which coupling size does it use?
The ball and socket coupling is 24 mm. Confirm this against the fittings already specified for the project so the string assembles without adapters.
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.
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View specifications →Quote U300BP/195
Send the quantity, the coupling size already specified and your destination port. We will come back with price, lead time and crate weights.




