23/07/2026
Why Isolating Spark Gaps Matter in Cathodically Protected Pipelines ?
Electrical isolation joints are essential for maintaining the effectiveness of Cathodic Protection (CP) systems. However, they can become vulnerable when exposed to lightning strikes, switching surges, or induced overvoltages.
This is where Isolating Spark Gaps (ISGs) play a critical role.
By remaining non-conductive during normal operation, an ISG preserves the electrical isolation required for proper CP performance. But when a high transient voltage occurs, it instantly provides a controlled discharge path, safely diverting the surge across the insulating joint.
Key Benefits:
✔ Protects insulating joints from dielectric breakdown.
✔ Safeguards CP system integrity without compromising isolation under normal conditions.
✔ Reduces the risk of costly pipeline damage and unplanned outages.
✔ Increases the reliability and service life of critical pipeline infrastructure.
✔ Provides effective protection against lightning and switching surges.
In modern pipeline networks, an Isolating Spark Gap is not just an accessory—it’s a vital protection device that bridges the gap between electrical safety and corrosion protection.
Protect your assets. Preserve your cathodic protection system. Enhance long-term pipeline reliability. Let's Connect: www.trust-pa.com
