Nanosecond Max Current of Residual-Current Circuit Breaker

Join the discussion
Ask a follow-up here, or get your own question answered by working scientists, mathematicians and engineers — people, not an autocomplete.
Real named experts · corrections over time · the nuance an AI answer skips
5 replies · 2K views
consuli
Messages
62
Reaction score
4
<<Moderator note: Political statement removed.>>

To protect against a nuclear EMP (NEMP) usually a big metal box is used, which is electrically connected to earth, to discharge the electrical pulse.

Most houses in europe have a 3-grid electric system, L, Neutral (N) and Protective Earth (PE).

Is it possible to use the PE wire as EMP discharge to ground?

Please keep in mind, that the PE does not go to Earth directly, but has to pass the residual-current circuit breaker (RCCB), which may be damaged by the nano-second long high current discharge.

Conclusively, what is the 50 nano-second maximum current of a residual-current circuit breaker (RCCB), which has a permanent maximum current of 16 Ampere?

Consuli
 
Last edited by a moderator:
Engineering news on Phys.org
<<Moderator note: off topic comments removed.>>

@ anorlunda
Lightning and EMP are totally different things ...

Consuli
 
Last edited by a moderator:
consuli said:
Lightning and EMP are totally different things

No. You need to learn some basic electricity including Maxwell's Equations.

Near (not in) a lightning strike, there is an EMP having a range of a few meters. The EMP from a nuclear explosion is similar but its range is hundreds of km.

You can get started by reading this
https://en.wikipedia.org/wiki/Electromagnetic_pulse
 
  • Like
Likes   Reactions: Fisherman199 and berkeman
If EMP protection is a military secret and following you cannot discuss it, please just say that and do not constantly remove comments.

Thanks
Cosuli