



Double-shed Disk Suspension Toughened Glass Insulator UG70B146/450D/16R
70kN Double Shed Toughened Glass Suspension Insulator U70BLD Anti-Fog Anti-Pollution Overhead Line Insulator IEC 60305 U70BLD 70kN Two-Wing Double Shed Glass Insulator for 33kV-132kV Transmission Line Factory Supply PSD-70E 70kN Double Shed Fog Type Tempered Glass Disc Insulator Material composition: mainly composed of tempered glass, iro
- Type codeUG70B146/450D 16R
- Mechanical failing load70 kN
- Routine test load35 kN
- Nominal diameter D280 mm
- Unit spacing H146 mm
- Creepage distance L450 mm
- Coupling size16 mm
- Net weight per unit6.30 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
High Voltage Insulator tempered glass insulator UG70B146/450D
Glass Double umbrella disc Suspension Insulators UG70B146/450D
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
Rated strength
Specified mechanical failing load of 70 kN, routine tested at 35 kN.
Creepage per unit
450 mm of leakage path in a single unit, so string creepage can be budgeted without guesswork.
Coupling
16 mm ball and socket coupling to match existing line hardware.
Shipping weight
6.30 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.
| 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
UG70B146/450D Questions
Straight answers to the questions buyers ask before a first order.
What is the mechanical failing load of UG70B146/450D?
The specified mechanical failing load is 70 kN, and the routine test load is 35 kN.
How much creepage distance does this unit give me?
One unit gives 450 mm of creepage distance at 146 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 16 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.
Other Types In This Family

U100BP/146D Double-wing Anti-pollution Disc Toughened Glass Insulator
View specifications →
U70BLD/U70BSD UHV AC 70kN Disk Suspension Toughened Glass Insulator
View specifications →
100kN U100BLD / PSD-100E Double Shed Toughened Glass Suspension Insulator
View specifications →
UHV AC 120kN U120BLD / PSD-120E Two-Wing Anti-Pollution Tempered Glass Disc Insulator
View specifications →Quote UG70B146/450D
Send the quantity, the coupling size already specified and your destination port. We will come back with price, lead time and crate weights.




