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Home > Double -Shed Type > Wholesale 160kN U160BD Double-Shed Type Glass Insulators IEC Standard for High Voltage Lines Manufacturer, Factory
Wholesale 160kN U160BD Double-Shed Type Glass Insulators IEC Standard for High Voltage Lines Manufacturer, Factory
Wholesale 160kN U160BD Double-Shed Type Glass Insulators IEC Standard for High Voltage Lines Manufacturer, Factory
Wholesale 160kN U160BD Double-Shed Type Glass Insulators IEC Standard for High Voltage Lines Manufacturer, Factory
Wholesale 160kN U160BD Double-Shed Type Glass Insulators IEC Standard for High Voltage Lines Manufacturer, Factory
Wholesale 160kN U160BD Double-Shed Type Glass Insulators IEC Standard for High Voltage Lines Manufacturer, Factory
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Wholesale 160kN U160BD Double-Shed Type Glass Insulators IEC Standard for High Voltage Lines Manufacturer, Factory
Wholesale 160kN U160BD Double-Shed Type Glass Insulators IEC Standard for High Voltage Lines Manufacturer, Factory
Wholesale 160kN U160BD Double-Shed Type Glass Insulators IEC Standard for High Voltage Lines Manufacturer, Factory
Wholesale 160kN U160BD Double-Shed Type Glass Insulators IEC Standard for High Voltage Lines Manufacturer, Factory
Wholesale 160kN U160BD Double-Shed Type Glass Insulators IEC Standard for High Voltage Lines Manufacturer, Factory

Wholesale 160kN U160BD Double-Shed Type Glass Insulators IEC Standard for High Voltage Lines Manufacturer, Factory

160kN IEC Standard Electrical Glass Insulator U160BLD (UG160B/340/170/550D) Double-Shed Type Glass Insulators for High Voltage Lines

U160 High Voltage Cap and Pin Type Anti-Fog Glass Insulator Isolator Toughened Double Shed Glass Electric Insulator

Two-Winged Glass Suspension Insulators PSD-160 B Type

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Product Description

Product Information

U160BLD Dimension Specification Drawing
  • Model: U160BLD
  • U: Refers To Disc Suspension Insulator
  • 160: Indicates a rated Mechanical failing load of 160kN
  • B: For Ball And Socket Type
  • L: For Long steel feet
  • D: For Double Shed profile glass Insulator
  • 340: Indicates that the diameter of the insulator disc is 340mm.
  • 170: Indicates that the height of the insulator structure is 170mm.
  • 550: Indicates that the creepage distance of the insulator is 550mm.
  • Type: External shed profile Toughened Suspension Type
  • Rated mechanical load: 160kn (about 16 tons)
  • Purpose: Primarily used in high-voltage transmission lines in areas with heavy pollution or humid, rainy conditions. Their double-shed design effectively enhances anti-pollution flashover performance, ensuring stable operation of the power system.
  • The product model is in accordance with IEC60383-1:1993, MOD / GB/T1001.1
  • The connection structure is in accordance with GB/T4056-2008 (IEC60120:1984, MOD) and BS 3288 part III.
  • According to customer requirements, the locking pin can be either W-pin or R-pin.

If there is no special instruction, W pin is used for U160B.

Product Drawing

U70BLD External Double-shed Type Glass Insulators Drawing

Product Parameters

IEC Designation U160BMD U160BLD
Model Type UG160B155/450D UG160B170/550D
Mechanical failing load kN 160 160
Nominal Diameter D mm 300 340
Nominal Spacing P mm 155 170
Creepage distance L mm 450 550
Socket coupling mm 20 20
Wet power frequency withstand voltage kV 45 50
Dry lightning impulse withstand voltage kV 130 130
Power frequency puncture voltage kV 130 130
Radio interference voltage (10kV 1MHz) μV 50 50
Corona visual test P/C kV 18/22 18/22
Power frequency electric arc voltage kA 0.12s/20ka 0.12s/20ka
Impulse puncture voltage P.U 2.8 2.8
Net weight per unit kg 7.5 9.5

Suspension Insulator Components

Suspension Insulator Structure Components Diagram

Suspension insulators consist of the following elements:

  • One dielectric made of toughened glass with the appropriate properties and shape for the environmental conditions in which it must function.
  • One hot-dip galvanized nodular or ductile malleable cast iron cap.
  • One hot-dip galvanized forged steel pin.
  • The cap and pin are assembled on the glass piece using aluminous cement with the appropriate properties to withstand the thermomechanical efforts.

Lastly, the insulator cap has a stainless steel or phosphor bronze locking device (split pin) which secures the coupling of the units.

Similarly, the pins may be protected using an anti-corrosion zinc sleeve (sacrificial anode), when requested. This zinc sleeve is strongly recommended for insulators which are going to be used in lines with heavy pollution.

Glass Insulator Shell Cross-section

Under long-term electrical stress, contaminants can trigger local arcs, leading to insulator surface carbonization (electrocorrosion). Enough creep distance to disperse the strength of the electric field, reduce the risk of local discharge and extend the life.

Glass Insulator Shell Cross-section and Creepage Distance Detail

Product Display

U70BLD Glass Insulators Batch Display
Double-shed Glass Insulator Packaging and Inventory

Frequently Asked Questions

What does the model number U160BLD stand for?
The model breaks down as follows: U refers to Disc Suspension Insulator; 160 indicates a rated mechanical failing load of 160kN; B stands for Ball and Socket type connection; L indicates long steel feet; and D represents a double-shed profile glass design.
What are the primary applications for double-shed profile glass insulators?
These insulators are primarily designed for high-voltage transmission lines in areas with heavy industrial pollution, coastal environments, or humid and rainy weather. Their double-shed design increases the creepage distance to prevent pollution flashover.
Which standards do these suspension insulators comply with?
The products are manufactured in accordance with IEC60383-1:1993, MOD / GB/T1001.1. The connection structures comply with GB/T4056-2008 (IEC60120:1984, MOD) and BS 3288 part III standards.
What type of locking pins are used for U160B model series?
The locking pin can be either a W-pin or R-pin depending on custom specifications. Unless specifically instructed otherwise by the customer, a W-pin is standard for the U160B models.
How does creepage distance protect the insulator from electrocorrosion?
Under long-term electrical stress, pollutants on the insulator surface can lead to local discharges and carbonization. An adequate creepage distance (e.g., 550mm for U160BLD) disperses the electric field strength, lowering the risk of flashovers and extending the product service life.
Can these insulators be protected against severe corrosion?
Yes. Upon request, the steel pins can be fitted with an anti-corrosion zinc sleeve (sacrificial anode). This configuration is highly recommended for transmission lines located in heavily polluted or highly saline marine environments.

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