Outdoor High Voltage Isolating Switch

Overview

• All of them are treated by hot dip galvanizing.The parts that cannot be rotated according to the requirements of hot dip galvanizing are generally made of stainless steel,the fasteners below M8 are made of stainless steel,and the rest are made of hot dip galvanizing.
• The conductive part of copper tube is of soft connection type,the midde contact is of”handshake”type,the spring external pressure type has no current passing through,the isolating switch has only one contact point in the middle,and the rest are fixedly connected by soft connection.
• Using a new contact structure,one end of the contact pieceis fixed with the contact seat,and the sliding contact of the end of the contact finger is changed into a fixed contact by the deformation of the contact piece and the contact pressure generated by the spring,thus improving the conductivity reliability.
• The finger spring is changed to the external type to avoid spring shunting.
• The magnetic locking plate is added to improvethe dynamic andthermal stability.
• Rotating parts are equipped with self-lubricating sleeves without grease.
• The main wiring terminal is flat.When the current level is 630Athe surface of conductive parts istinned;When the current level is 1250A-4000A, the surface of conductive parts is silvered.
• The upper and lower caps of porcelain pieces are galvanized to prevent rust.and porcelain pieces with different climbine distances can be selected according to the different pollution levels in the region;In the manufacturing process,it is controlled according to the positive difference,and the nominal value is higher than the standard value when the creepage distance is designed.
• The post insulator for switch has high strength density,stability and reliability.The formula is made of high strength porcelain material,which reduces the dispersion of product streneth and increases thetensile streneth of the product.The structural design has already reserved a large degree of streneth for the product,which ensures the stability and reliability of the product in operation.

Product structure features

♦ The contact spring adopts an external pressure type, so as to avoid accidents caused by the spring current-carrying failure.
♦ The conductive tube adopts the square aluminum alloy tube; the flexible connection is made from copper; the conductive contact surface is silver-plated; high mechanical strength and good through-current effect.
♦ The drive parts adopt stainless steel axle pin and composite axle sleeve with less friction and reliable drive.
♦ A reliable interlock device is arranged between the main earthing knife-switch and earthing knife-switch to prevent incorrect manipulation effectively.
♦ The mounting base is fully-sealed, which can effectively prevent water and dust. The bearing pedestal is provided with an oil filler hole and can be maintained without power cut, thus improving the reliability and convenience of the switch.
♦ Large steel parts are hot-dip galvanized with good appearance quality and strong anti-corrosion capability.

Products details

Product and installation dimensions

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