Surge Protection System
SPD Design, Supply & Installation
Advanced Engineering Solutions
Transient overvoltages caused by lightning strikes, switching operations, and other electrical disturbances pose a serious threat to sensitive electronic equipment and electrical infrastructure. A properly designed and installed Surge Protection System is essential to mitigate these risks.
Aadithya offers end-to-end surge protection solutions — from risk assessment and system design to supply, installation, and commissioning of SPDs across power, data, signal, and instrumentation lines.
Understanding Transients
A transient overvoltage (surge) is a short-duration spike in electrical voltage that can reach thousands of volts above normal operating levels. Sources include direct or nearby lightning strikes, utility grid switching, motor start/stop events, and capacitor bank switching. These surges can destroy equipment instantly or degrade it over time, causing unplanned downtime and costly replacements.
Type 1 SPD
Installed at the main distribution board, Type 1 SPDs safely discharge high-energy, direct lightning currents (10/350µs waveform). They are a mandatory requirement for facilities equipped with an external lightning protection system.
Type 2 SPD
Deployed at sub-distribution panels, Type 2 SPDs serve as the primary defense against indirect lightning strikes and internal switching surges (8/20µs waveform), effectively clamping residual overvoltages to safe levels.
Type 3 SPD
Installed directly at the point of use, Type 3 SPDs provide highly sensitive, fine-tuned protection for delicate electronic equipment, computers, and instrumentation, neutralizing any minor transients that bypass upstream protection.
Signal & Data SPD
Specialized surge arresters engineered to protect sensitive, low-voltage communication networks. They ensure data integrity and prevent catastrophic hardware damage across Ethernet, RS-485, telecom, and critical instrumentation lines.
Standards
Industries
- Industrial Plants & Factories
- Commercial & High-Rise Buildings
- Data Centers & IT Facilities
- Hospitals & Medical Equipment
- Solar & Wind Plants
- Substations & Control Rooms
- Oil & Gas Installations
- Communication Towers
Delivery Model
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