The performance of overhead line insulation in DC differs from AC due to ionization of airborne particles resulting from
As service environments become cleaner, more wildlife and in particular birds return and play a proportionately greater
This article, from a paper presented at a past INMR WORLD CONGRESS by R.A. Bernstorf, then Principal Engineer, Insulator
Different types of insulators with hydrophobic properties have now become commercially available, including composite in
The IEC’s first Guide for selecting insulators with respect to pollution in was published 1986 and standardized the conc
South Bohemia abounds with wonders, including medieval towns with cobblestone streets and fairy tale castles. But what i
Test stations have been acknowledged as an important tool for evaluating insulator performance under different service e
The butterfly insulators and pin insulators in ceramic insulator products are mainly used for high and low voltage trans
Protection against overvoltages using gapless zinc oxide surge arresters has been accepted and adopted worldwide. In par
Haivo electrical participated in the “ELECRAMA” Exhibition in India from January 18，22,2020.
Silicone coatings have traditionally been applied mainly to mitigate insulator contamination problems at substations but
The basic performance of plug accessories can be divided into three categories: mechanical performance, electrical perfo
South Bohemia abounds with wonders, including medieval towns with cobblestone streets and fairy tale castles. But what i
Since inception, IEC standards 60815-1 to -3 have helped guide engineers charged with specifying insulation for overhead
In the past, the main options for support insulators at air-insulated HVAC substations were either solid core porcelain
Designing overhead lines and substations that will perform reliably for decades has always been a remarkable challenge.
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GAPLESS SURGE ARRESTER Abstract of the Disclosure A gapless surge arrester is disclosed herein and includes a porcelain outer casing and a stack of zinc oxide discs located within the casing for passing surge currents there-through. silicon dioxide, preferably sand, is provided betwen this stack in the casing for transferring heat from the discs to the
