News & Blog

Jul 24, 2026

11kV Lightning Arrester Selection for Distribution Applications

Catalogs make it look simple: search for an 11kV lightning arrester, match the number on the feeder single-line diagram, done. Real selection runs in the...

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Jul 23, 2026

How to Specify an Isolating Disconnecting Switch for an Overhead Line

A isolating disconnecting switch decision is reliable only when the project distinguishes terminology, isolation duty, document evidence, and supplier exceptions. Treat the requested device as...

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Jul 23, 2026

Polymer Insulators for Power Utilities | High-Voltage Insulation Solutions

As transmission and distribution networks continue to expand, polymer insulators are becoming an important choice for power utilities, EPC contractors, electrical distributors, and grid infrastructure...

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Jul 23, 2026

Gapless vs Gapped Surge Arresters: Selection Considerations for MV Systems

Two structural families cover almost every arrester a medium-voltage buyer will meet. The gapless surge arrester connects its zinc oxide varistor column straight between line...

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Jul 22, 2026

Switch Disconnectors: Isolation Duties, Limits and Specification Questions

A switch disconnector isolator decision is reliable only when the project distinguishes terminology, isolation duty, document evidence, and supplier exceptions. Treat the requested device as...

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Jul 22, 2026

Horn Gap vs Rod Gap Arresters: Where Each Design Is Used

Before zinc oxide varistors existed, overhead lines were protected by air itself. A horn gap arrester stretched an arc between two diverging horns until it...

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