U40b Lsolateur Hta Type CTV 175 mm

• Application: High-voltage, High-temperature
• Material: Glass
• Structure: Suspension Insulator
• Model NO.: U40B
• Type: A Type Insulator
• Usage: High Voltage Power Transmission, Insulation, Electrical Installation
• Connection Method: Spherical Type
• Size of Bearing Capacity: 40KN
• Certification: ISO9001
• Color: Green
• Brand: Qx
• Unit Spacing(H): 110mm
• Nominal Diameter(D): 178mm
• Creepage Distance: 190mm
• Min Mechanical Failing Load: 40kN
• Transport Package: Wooden Box Packaging
• Specification: 2.1kg
• Trademark: QX
• Origin: China
• HS Code: 8546100000
• Production Capacity: 6000000
• Package Size: 100.00cm * 100.00cm * 100.00cm
• Package Gross Weight: 1.000kg

Product Description

Product Description

CTV 175 tempered glass insulator is widely used in 10 kV to 66 kV power transmission lines. It features a nominal diameter of 175 mm, height of 110 mm, creepage distance of 185 mm, coupling size of 11A (11 mm), and a minimum mechanical damage load of 40 kN. The insulator weighs approximately 1.7 kg.

In some markets, the CTV 175 tempered glass insulator is also known as the U40B glass insulator. Its primary market is Africa, particularly Algeria.

The U40B is a glass suspension disc insulator with a mechanical failing load of 40 kN, designed by IEC standards. It features a nominal diameter of 178 mm, a nominal spacing of 110 mm, a nominal creepage distance of 185 mm, and a weight of only 2.1 kg.

U40B Glass Insulator has become popular in transmission and distribution system. Annealed tough glass is used for insulating purpose. Glass insulator has numbers of advantages over conventional porcelain insulator.


lf there is no special instruction, W pin is used for U70B

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

 Three or five glass insulators are arranged in a string, and two strings are crossed and fixed in wooden boxes to ensure that they will not be bumped or damaged during transportation.

Wooden boxes are evenly stacked on pallets and secured with plastic strapping.

The pallet itself can be stacked to ensure optimal utilization of space during transportation and storage.

All wooden strips of wooden boxes and pallets have undergone high-temperature fumigation treatment.

Key Features of Glass Electric Insulators:

• Superior Dielectric Strength: Glass provides excellent electrical insulation, minimizing the risk of current leakage and ensuring safety.

• Durability: Resistant to weathering, UV radiation, and temperature fluctuations, glass insulators maintain their integrity over time.

• Transparency: The clear nature of glass allows for straightforward visual inspections, facilitating maintenance and early detection of potential issues.

• Advantages Over Other Materials:

• Self-Cleaning Properties: The smooth surface of glass reduces the accumulation of dirt and pollutants, decreasing maintenance requirements.

• Mechanical Strength: Engineered to withstand mechanical stresses, glass insulators are suitable for various environmental conditions.

• Environmental Impact: Glass is recyclable, making it an eco-friendly choice for sustainable infrastructure projects.

Company Profile

Jiangxi QOCI Electric Co.,Ltd.has been specialized in research and development of latest high-strength functional glass and power transmission insulators,which is the qualified supplier for State Grid Corporation of China and Southern State Grid Corporation of China,and is a participating unit of product standard formulation of the National Insulator Standard Committee.

The main products type are :standard-type insulator,antipollution-type insulator,aerodynamic type insulator,multi-umbrella type insulator,ground-wires type insulator,post insulator for line,pin insulator.Products are mainly used for transmission line insulation, suspension, support, tension conductors.Our products are divided into 5 major series: the standard type 40-550kN,filth-resistant type 70-420kN,aerodynamic type 120-300kN,multi-umbrella type 120-300kN,and ground circuit type,able to be used for line voltage from 10kV~1000kV.

Why choose us?

1.Source factory, self-produced and self sold, low price.

2.More than ten years of operation, quality assurance.