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incorrect information on terminal spd corrected.
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Pavin Joseph
Pavin Joseph
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I've been researching on whole house surge protection devices and came across an Illustration of lightning current flow from a direct strike near the (protected) structure.

From my understanding Type 2 residential SPDs divert surges from L-N, L-PE and N-PE. But the above illustration shows a Type 2 surge I never considered before, where inductance from a nearby lightning strike to the ground causes surge in the Ground (PE) wire. Can a normal type 2 SPD protect from this type of surge event?

P.S. I have a seriestype 3 SPD (to protect terminal equipment) which I currently use and a whole house type 2 SPD (parallel) which I haven't installed. It is my understanding that both essentially divert surges to Ground (PE) but I honestly have no idea what they'd do when it is the ground wire that causes the surge.

I've been researching on whole house surge protection devices and came across an Illustration of lightning current flow from a direct strike near the (protected) structure.

From my understanding Type 2 residential SPDs divert surges from L-N, L-PE and N-PE. But the above illustration shows a Type 2 surge I never considered before, where inductance from a nearby lightning strike to the ground causes surge in the Ground (PE) wire. Can a normal type 2 SPD protect from this type of surge event?

P.S. I have a series SPD (to protect terminal equipment) which I currently use and a whole house type 2 SPD (parallel) which I haven't installed. It is my understanding that both essentially divert surges to Ground (PE) but I honestly have no idea what they'd do when it is the ground wire that causes the surge.

I've been researching on whole house surge protection devices and came across an Illustration of lightning current flow from a direct strike near the (protected) structure.

From my understanding Type 2 residential SPDs divert surges from L-N, L-PE and N-PE. But the above illustration shows a Type 2 surge I never considered before, where inductance from a nearby lightning strike to the ground causes surge in the Ground (PE) wire. Can a normal type 2 SPD protect from this type of surge event?

P.S. I have a type 3 SPD (to protect terminal equipment) which I currently use and a whole house type 2 SPD which I haven't installed. It is my understanding that both essentially divert surges to Ground (PE) but I honestly have no idea what they'd do when it is the ground wire that causes the surge.

edited title
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Pavin Joseph
Pavin Joseph
  • 167
  • 7

Does whole house surge protection devicesdevice (SPD) protect from Ground (PE) surges?

Source Link
Pavin Joseph
Pavin Joseph
  • 167
  • 7

Does whole house surge protection devices (SPD) protect from Ground (PE) surges?

I've been researching on whole house surge protection devices and came across an Illustration of lightning current flow from a direct strike near the (protected) structure.

From my understanding Type 2 residential SPDs divert surges from L-N, L-PE and N-PE. But the above illustration shows a Type 2 surge I never considered before, where inductance from a nearby lightning strike to the ground causes surge in the Ground (PE) wire. Can a normal type 2 SPD protect from this type of surge event?

P.S. I have a series SPD (to protect terminal equipment) which I currently use and a whole house type 2 SPD (parallel) which I haven't installed. It is my understanding that both essentially divert surges to Ground (PE) but I honestly have no idea what they'd do when it is the ground wire that causes the surge.