Actualités et blog

23 juil. 2026

Parafoudres sans éclateur ou avec éclateur : critères de choix pour les réseaux MT

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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Juil 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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Juil 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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21 juil. 2026

Sectionneur vs Interrupteur-sectionneur : Comment les termes sont utilisés dans les systèmes MT

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

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21 juil. 2026

Metal-Oxide vs Silicon Carbide Lightning Arresters: A Technical Comparison

Distribution networks that have been in service for several decades usually carry two generations of overvoltage protection side by side. New purchases are almost always...

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Juil 20, 2026

Parafoudres pour transformateurs : questions de coordination avant la sélection

A transformer surge arrester is not selected from transformer voltage alone. The coordination decision begins at the protected terminals: identify the transformer insulation requirement, the...

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