How to Calculate Lightning Arrester (LA) Rating for different System Voltage

[@abdulrahmanalsaher]

👍👍👍👍

[@Saurabhkumar-gq2vd]

Sir LA KITNI KV VOLTAGE PAR BRUST HOGA

[@soorajpalverma8265]

Why underroot 2 used

[@ravichintada6740]

Because
Vrms=Vpeak*1/√2 (I.e. RMS voltage is always 0.707% of Peak voltage) &
As we are considering LA rating for peak voltage only so Vpeak=Vrms*√2.

[@AbhishekKumar-pe9hx]

Why 1.1 used