High Voltage 40kn Disc Suspension Toughened Glass Insulator U40B White Transparent

Short Description:

Glass insulator is a device used to support conductor and insulate it. It is made of glass. At present, tempered glass insulator is the most widely used in route. It is generally made of glass and porcelain, and it is one of the key components of high-voltage transmission line. Its performance directly affects the operation safety of the whole transmission line. Glass insulators are widely used because of the characteristics of zero value self breaking and easy maintenance.


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 Product Design Drawings

High Voltage 40kn Disc Suspension Toughened Glass Insulator U40B White Transparent (9)

Product Technical Parameters

IEC designation U40B/110
Diameter D mm 178
Height H mm 110
Creepage distance L mm 185
Socket coupling mm 11
Mechanical failing load kn 40
Mechanical routine test kn 20
Wet power frequency withstand voltage kv 25
Dry lightning impulse withstand voltage kv 50
Impulse puncture voltage P.U 2.8
Power frequency puncture voltage kv 90
Radio influence voltage μv 50
Corona visual test kv 18/22
Power frequency electric arc voltage ka 0.12s/20kA
Net weight per unit kg 2.1

Product Description

Disc glass insulator is composed of iron cap (malleable cast iron), steel foot (low carbon steel) and porcelain parts (or tempered glass). The fittings and insulating parts shall be glued with cement. Disc suspension insulator can easily form insulator string. When forming an insulator string, the ball joint of the steel foot is inserted into the ball socket of the iron cap to become a ball twisted soft connection, so that the insulator string can only bear tensile force without bending moment and torque. The disc suspension insulator has simple structure and various geometric shapes, which can meet the application requirements of different regions. After being connected in series, it can be used on transmission lines with any voltage level. It is the most widely used insulator on high-voltage lines. The higher the grade of transmission line, the higher the requirement for tensile strength of insulator. The product model of disc suspension insulator does not contain voltage grade, but only mechanical strength. For example, XP-40 indicates disc suspension insulator, and the electromechanical failure load is 40kN.

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Product Application

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