U40B/178/110/190 Glass insulator

The U40B glass insulator is a suspension insulator designed for high-voltage overhead transmission lines (typically ranging from 10kV to 550kV). With its 40 kN rated mechanical failing load and excellent electrical characteristics, it is suitable for lines with high mechanical tension and voltage. Its "self-shattering" feature makes line maintenance significantly safer and more efficient, solidifying its role as a critical component in modern power grids.

Brand: QOCI
Catalog ID: UG40B110/190N
Type: Standard type insulator
Material: Tempered Glass，Galvanized Steel
Place of Origin: Jiangxi

Product Details

Product drawing

U40B-175-110-190 drawing.jpg

Product parameters

IEC designation		U40B/110
Mechanical failing load	kn	40
Diameter D	mm	178
Height H	mm	110
Creepage distance L	mm	190
Socket coupling	mm	11
Wet power frequency withstand voltage	kv	25
Dry lightning impulse withstand voltage	kv	50
Power frequency puncture voltage	kv	90
Radio interference voltage(10kV 1MHz)	μv	50
Corona visual test	kv	18/22
Power frequency electric arc voltage	ka	0.12s/20kA
Impulse puncture voltage	P.U	2.8
Net weight per unit	kg	2.1

Product Information

40kn普通型产品部件图.jpg

Model:U40B
U Refers To Disc Suspension Insulator
40 indicates a rated Mechanical failing load of 40kN
B For Ball And Socket Type

110- indicates that the height of the insulator structure is 110mm.
175- indicates that the diameter of the insulator disc is 175mm.
190- indicates that the creepage distance of the insulator is 190mm.

Type: Standard profile Toughened Suspension Type
Rated mechanical load: 40kn (about 4 tons)
Purpose: Widely applicable as insulation support for medium and high voltage transmission lines and substation equipment, capable of stable operation under various climatic conditions.

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 lll.
According to customer requirements, the locking pin can be either W-pin or R-pin.
lf there is no special instruction, R pin is used for U40B

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