To solve the problem that usual lighting surge protectors can not deal with the disturbance induced by electromagnetic pulse with fast rise time

we designed a kind of synthetic protection module against disturbance on power lines induced by nanosecond electromagnetic pulse. Transient protection part in the time domain and stationary filter in the frequency domain are main components of the designed synthetic protection module. Moreover

the varistor and transient voltage suppressor（TVS） were selected as main devices in transient suppression circuit

and the coordination of two components by the numerical adjustment of intermediate decoupling inductor was researched. Then a filter was designed to deal with the common and differential mode interference in the spectral range of disturbance induced by electromagnetic pulses. The test results show that this synthetic module can combine the advantages of transient suppression and steady state filter

and the electromagnetic pulse signal of 1.5 k V can be limited to less than 100 V with an ideal protective effect.