External Gap Surge Arrester

Visible Spark Gap:Allows quick visual check of operational status
Robust Structure:Simple, durable design for high reliability in outdoor settings
Pollution Tolerance:External gap configuration resists contamination and flashovers
Self-Extinguishing Operation:Air-gap design prevents follow current after discharge
Tool-Free Installation:Easy mount on overhead lines without specialized equipment
Low Maintenance:No replaceable parts, reducing downtime and upkeep costs
Versatile Application:Ideal for distribution networks and pole-mounted transformers

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Describe Display

The external air-gap surge arrester is engineered to protect overhead distribution systems against lightning and switching surges. Its simple yet robust design combines a zinc oxide varistor core with an externally exposed spark gap, delivering reliable overvoltage protection and a clear visual indicator of operation.

Suitable for harsh outdoor environments, this arrester resists pollution and moisture while preventing follow current through its self-extinguishing air gap. Quick, tool-free installation and maintenance-free operation make it an efficient solution for distribution networks and pole-mounted transformers.

Service & Support

Our certification team consists of 85+ engineers with more than 20 years of professional experience

24/7 Service. Average emergency response time is limited to less than 12 hours

Suitable for substations, industrial power grids, new energy projects and other demanding scenarios