





220kV 500kV High Voltage 300kN Double-umbrella Electrical Glass Insulator
Glass insulator is including standard type, pollution resistant type, DC type, spherical type, aerodynamic type, ground wire type, and contact network for electrified railways Jiangxi Huayao electric Co.,ltd produce standard type glass insulator 40-550Kn, Pollution resistant type 70-400Kn, mutil-umbrella type 120-330kN, Glass insulator ae
- Applicationhigh voltage UG300B 195/480D
- 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
Huayao control the quality starting from the careful screening of raw materials and automatic batching, every link follows a strict technological process, from melting to pressing, from uniform tempering to cold and hot impact, homogenization treatment, to subsequent gluing, maintenance, inspection and packaging, until the final product leaves the factory.
The product consists of an iron cap, tempered glass parts, and steel feet, and is integrated with cement adhesive. This product adopts the most advanced cylindrical head structure internationally, characterized by small head size, light weight, high strength, and large creepage distance. Can save metal materials and reduce line costs. To meet the needs of live working, traditional domestic structural shapes are used on the brim of the hat.
Mix raw material=>melt glass liquid=>press to glass insulator shape=> tempering treatment=>cold and shock test=> Glue assembly=> routine test and other test=> Finished products package
When creepage has to rise but the tower window is fixed, alternating large and small sheds add leakage path within the same unit spacing.
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.
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| UG70B146/450D 16R | 280 | 146 | 450 | 16 | 70 | 35 | 80 | 45 | 120 | 130 | 6.30 |
| UG100B146/450D 16R | 280 | 146 | 450 | 16 | 100 | 50 | 80 | 45 | 120 | 130 | 6.30 |
| UG120B146/450D 16R | 280 | 146 | 450 | 16 | 120 | 60 | 80 | 45 | 120 | 130 | 6.30 |
| UG160B170450D 20R | 300 | 170 | 450 | 20 | 160 | 80 | 85 | 45 | 130 | 130 | 8.40 |
| UG210B170/450D 20R | 300 | 170 | 450 | 20 | 210 | 105 | 85 | 45 | 130 | 130 | 9.00 |
| UG300B195/480D 24R | 330 | 195 | 480 | 24 | 300 | 150 | 85 | 50 | 130 | 130 | 13.00 |

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
Material: fiberglass Questions
Straight answers to the questions buyers ask before a first order.
What is the mechanical failing load of Material: fiberglass?
The specified mechanical failing load is 300 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

U100BP/146D Double-wing Anti-pollution Disc Toughened Glass Insulator
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U70BLD/U70BSD UHV AC 70kN Disk Suspension Toughened Glass Insulator
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Double-shed Disk Suspension Toughened Glass Insulator UG70B146/450D/16R
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100kN U100BLD / PSD-100E Double Shed Toughened Glass Suspension Insulator
View specifications →Quote Material: fiberglass
Send the quantity, the coupling size already specified and your destination port. We will come back with price, lead time and crate weights.




