A lightning arrester is a protective device installed in electrical systems to divert dangerous overvoltages safely to the ground. By providing a low-resistance path during surges, it prevents costly damage and ensures uninterrupted power supply.
In normal conditions, the arrester acts as an insulator, allowing electricity to flow smoothly. When a surge occurs, it instantly becomes conductive, channeling the excess energy into the ground, and then returns to its insulating state once the surge passes.
Specifications
Type: Metal Oxide Surge Arrester (Gapless / ZnO)
Application: Outdoor, Distribution & Transmission Systems
Standards: IEC 60099-4 / IS 3070
System Voltage Range: 3.3 kV to 420 kV (as per requirement)
Housing: Polymer / Porcelain
Design: Sealed, UV & weather resistant
Mounting: Vertical / Horizontal
Terminal Connection: Clamp / Stud / Customized
Ambient Temperature: –40°C to +55°C
Altitude: Up to 1000 m (higher on request)
Pollution Class: Medium / Heavy / Very Heavy as per IEC 60815
Seismic Withstand: Up to 0.3 g
Continuous Operating Voltage (Uc): ___ kV (line to ground)
Nominal Discharge Current (In): 5 kA / 10 kA / 20 kA
Lightning Impulse Withstand (Up): ___ kV peak
Creepage Distance: As per pollution level (e.g., 25 mm/kV – 31 mm/kV)
Sign In