Insulators
June 22, 2018 •
ARTICLE ARCHIVE, Glass, Insulators •
Comments Off on Check Points & Quality Screening for Glass & Other Insulators
Increasing demand for overhead transmission line components such as insulators has brought into the market new, previously often unknown suppliers. This has created a large spectrum of performance and quality that are not necessarily easy to identify relying only on existing standards or specifications. This is true for all insulator technologies. End user...
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June 16, 2018 •
ARTICLE ARCHIVE, Insulators
According with IEC-60050-471, an insulator is: “a device intended for electrical insulation and mechanical fixing of equipment or conductors which are subject to electric potential differences”. An insulator is therefore a mechanical support. Once that...
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June 15, 2018 •
ARTICLE ARCHIVE, Insulators
A common industry goal these days is that a growing proportion of energy supply will come from renewable energy sources such as hydro power, wind energy, solar energy as well as tidal and wave energy. At the same time, the power systems will have to become...
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June 9, 2018 •
ARTICLE ARCHIVE, Insulators
Braced insulator assemblies are a type of armless construction for transmission line designs introduced when the first HV horizontal line posts were installed over 50 years ago. Minimum clearances for conventional line construction, such as using a vertical...
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June 9, 2018 •
ARTICLE ARCHIVE, Insulators, Wisdom on Overhead Lines
Because of increasing difficulties in securing approvals for new transmission corridors, various new technologies for line uprating have been developed and are now being implemented. The basic idea is to use existing line corridors to transfer more power. One...
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June 1, 2018 •
ARTICLE ARCHIVE, Insulators, Maintenance
With their growing popularity as the insulator of choice for many line projects throughout the world, the ideal inspection program for silicone insulators has become a hot topic. This is particularly the case since, even after years of investigating...
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May 12, 2018 •
Insulators
Shielding electrodes of different form are usually foreseen and specified for AC lines with 3 main purposes: To eliminate corona from insulator fittings (i.e. a corona shielding function); to grade the voltage potential along the string in order to limit the...
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May 12, 2018 •
ARTICLE ARCHIVE, Commentary by Pigini, Insulators
The focus when it comes to electrical products and components has traditionally been on quality and performance in service. Increasing public awareness of environmental issues, however, has now led both manufacturers and users to pay greater attention to the...
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