Aerodynamic insulator replacing tool for steel tower side phase ...

具体实施方式 Detailed ways

With competitive price and timely delivery, Yipeng sincerely hope to be your supplier and partner.

如图1、图2和图3所示，本实用新型安装在铁塔边相横担1上，包括卡具2、丝杆3、绝缘拉杆6和挂钩7，丝杆3的下端连接绝缘拉杆6，绝缘拉杆6的下端连接挂钩7；安装时，先将卡具2通过穿过定位销孔24的销杆25左右对称安装于铁塔边相横担1上，位置关于空气动力型绝缘子串5对称，然后将丝杆3、绝缘拉杆6和挂钩7的装配件安装到卡具2上的安装通孔23中，拧紧穿过销钉孔21的销钉26来夹紧丝杆3，丝杆3上加工有卡口，卡在半长圆孔22中，用于限制丝杆3的周向旋转；旋转丝杆3上的扳手4来调节丝杆3的长度使挂钩7勾住导线8。 As shown in Fig. 1, Fig. 2 and Fig. 3, the utility model is installed on the side arm 1 of the iron tower, including a fixture 2, a screw rod 3, an insulating pull rod 6 and a hook 7, and the lower end of the screw rod 3 is connected to the insulating pull rod 6 , the lower end of the insulating pull rod 6 is connected to the hook 7; when installing, first install the clamp 2 symmetrically on the iron tower side phase cross arm 1 through the pin rod 25 passing through the positioning pin hole 24, and the position is symmetrical with respect to the aerodynamic insulator string 5 , then the assembly parts of the screw mandrel 3, the insulating pull rod 6 and the hook 7 are installed in the installation through hole 23 on the fixture 2, and the pin 26 passing through the pin hole 21 is tightened to clamp the screw mandrel 3, and the screw mandrel 3 is processed There is a bayonet, which is stuck in the semi-oblong hole 22, and is used to limit the circumferential rotation of the screw mandrel 3; rotate the wrench 4 on the screw mandrel 3 to adjust the length of the screw mandrel 3 so that the hook 7 hooks the wire 8.

Overview

Features

Available for any voltage and contamination level by changing number of insulators

Product Lineup

Various Types of Suspension (Disc) Insulators.

Application

High Reliability

High reliability is achieved by long-term experience and accumulation of technology.

Selected High Quality Raw Material

High strength porcelain insulators require not only higher amount of alumina but also

Optimum Design Engineering

• *M&E Test: Electromechanical failing load test as per IEC -1

Advanced Manufacturing Technology

Strict Quality Control

In addition to ISO certified,

Hydraulic Pressure Test

The company is the world’s best Aerodynamic Glass Insulator supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

Excellent Long-Term Performance

Long-Term Performance Evaluation

Thermal-Mechanical (T&M) performance test as per IEC -1 or ANSI C29.2 is to evaluate long-term reliability of insulators.
As these standards specify minimum requirements only, all NGK insulators have been confirmed to pass modified T&M test.

Test Method IEC Pub. -1 NGK Method Load 60-65% of Specified
E&M failing load
(24-hour cycle) 60-65% of Specified
E&M failing load
(1-hour cycle) Temperature -30°C to +40°C
(24-hour cycle) -40°C to +60°C
(8-hour cycle) Duration 4days 15days

Acceptance Criteria for T&M Test

To exclude poor quality insulators, M&E test results before and after T&M test are:

(R: mean value, s: standard deviation)

Zinc Sleeve

Contaminated and wet insulators display a biased leakage current having DC component. This DC component causes electrolytic corrosion and reduction of pin diameter.

Pin Corrosion of suspension (disc) insulator

NGK developed Zinc Sleeve to prevent pin corrosion.

Test & Standard

NGK suspension (disc) insulators meet the requirements and tests of the following standards.

For more Composite Insulatorinformation, please contact us. We will provide professional answers.

IEC Standard and Technical Report

-1 High-voltage test techniques, Part 1: General definitions and test requirements Dimensions of ball and socket coupling of string insulator units Characteristics of insulator units of the cap and pin type -1 Insulator units - Definitions, test methods and acceptance criteria -2 Insulator strings - Definitions, test methods and acceptance criteria Radio interference test on high-voltage insulators Dimensions of clevis and tongue coupling of string insulator units Artificial pollution tests on high-voltage insulators to be used on a.c. systems Thermal-mechanical performance test Residual strength of string insulator units Guide for the selection of insulators in respect of polluted conditions Puncture testing Artificial pollution tests on high-voltage insulators to be used on d.c. systems Insulator units for d.c. systems - Definitions, test methods and acceptance criteria

ANSI Standard

C29.1 Electrical power insulators - test methods C29.2 Wet-process porcelain and toughened glass - suspension type

CAN/CSA Standard

C411.1 AC suspension insulators

EHV & UHV Service Experiences