CTV 175 high voltage suspension 40 kN glass electric insulator U40B glass insulators

Product Introduction

Glass insulator is a special insulation component used in overhead transmission lines to provide insulation and support for wires.
Glass insulators are usually composed of iron caps, tempered glass pieces, and steel feet, which are bonded together with cement adhesive

Main types of glass insulator

Glass insulator is including standard type, pollution resistant type, DC type, spherical type, aerodynamic type, ground wire type, and contact network for electrified railways Jiangxi Huayao electric Co.,ltd produce standard type glass insulator 40-550Kn, Pollution resistant type 70-400Kn, mutil-umbrella type 120-330kN, Glass insulator aerodynamic type 120-300kN, ground wire type.

Following is standard type glass insulator CTV175,CTV254:

Product Details

Quick detail

Dimensions
Diameter (D):175mm
Spacing (H): 110mm
Creepage Distance: 190mm
Coupling Size: 11mm

Mechanical Values
Mechanical Failing Load: 40kN
Tension Proof: 20kN

Electrical Values
Dry Power-frequency Withstand Voltage: 50kV
Wet Power-frequency Withstand Voltage: 30kV
Dry Lightning Impulse Withstand Voltage: 75kV
Puncture Withstand Voltage: 90kV

Radio Influence Voltage Data
Test Voltage RMS to Ground: 10kV
Maximum RIV at 1000 kHz: 50μV

Warehouse of Huayao workshop

Huayao product has been awarded 1. Xi'an High Voltage Apparatus Research Institute Co., Ltd

2. National Ceramic Product Quality Inspection and Testing Center Jiangxi Ceramic Testing Center

The inspection report of the institution.

All products undergo full acceptance by international authoritative third-party organizations, and can provide testing and certification services from Intertek, SGS, BV and other institutions. We strictly follow international standards to control product quality, provide traceable and verifiable quality assurance for global customers, and meet the comprehensive requirements of overseas project bidding and compliance review.

Standard of glass insulator:

The tests have been performed in accordance with:
GB/T1001.1-2021 Insulators for overhead lines with a norminal voltage above 1000V Part1: Ceramic or glass insulator units for a.c. systems Definitions, test methods and acceptance criteria (IEC 60383-1:2021 MOD)
GB/7253-2019 Insulator for overhead lines with a nominal voltage above 1000V-Ceramic or glass insulator units for a.c. systems-Characteristics of insulator units of cap and pin type (IEC 60305:2021 MOD)
IEC 60383-1:2023 Insulators for overhead lines with a norminal voltage above 1000V
IEC 60120:2020 Dimensions of ball and socket couplings of string insulator units
Jiangxi Huayao electric Co.,ltd strictly compliance with above standard. We do the factory test report as above standard.
We always do following test for each products:
1. Verification of the Dimensions
2. Verifications of Displacements
3. Locking system test
4. Galvanized test
5. Thermal shock test
6. Mechanical Failing Load Test
7.Power frequency puncture withstand test

JIANGXI HUAYAO ELECTRIC CO.,LTD attend the exhibition in VIETNAM ETE & ENERTEC EXPO，ELECTRICITY ALGERIA EXPO，IRAQ Energy Expo conference for electricity, oil, gas， Asia (Thailand) Electricity, Transmission and Distribution, and Energy Exhibition etc.