Lightning Arrester Design Considerations For Power Supply Safety Of Precision Equipment

For electrical systems in industrial and commercial facilities, selecting the appropriate 11 kv lighting arrester involves several electrical parameters, one of the core being the voltage protection level (Up). Up represents the residual voltage between terminals 11 kv lightning arrester during a surge event; this value, derived from standard impulse tests, measures the ability to limit voltage passage.

11kv 10ka lightning arrester should be installed near the power inlet or critical power supply node, in parallel with the protected power system. A lower Up value means a lower voltage limitation level when voltage passes through the equipment, which helps reduce the impact of high-energy transient voltages on the internal insulation and electronic components of precision devices.

Up is closely related to the system's withstand voltage rating; different installation locations and system architectures will affect the selection of parameters 11kv lighting arrester. Therefore, during system design, the technical team will refer to standards such as the International Electrotechnical Commission (IEC) to evaluate the rated voltage of the equipment and potential transient voltages.