Nanosecond Max Current of Residual-Current Circuit Breaker

In summary, the conversation discusses the use of a protective earth (PE) wire as a means of discharging electrical pulses, specifically for protection against a nuclear electromagnetic pulse (EMP). The conversation also briefly touches on the differences between lightning and EMP. The moderator notes that off-topic comments were removed and the thread is closed due to the OP's lack of interest in the discussion.
  • #1
consuli
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<<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
 
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  • #2
I don't think any of that matters because EMP reaches your electronics directly, even if it is not plugged into the wall.

My boat was hit by lightning. The EMP destroyed almost all my electronics, even things that were turned off and even a hand-held walkie-talkie radio.
 
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  • #3
<<Moderator note: off topic comments removed.>>

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

Consuli
 
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  • #4
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
 
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  • #5
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
 
  • #6
The OP does not seem to be interested in the answers to his question.

Thread closed.
 
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1. What is the maximum current that a residual-current circuit breaker can handle in a nanosecond?

The maximum current that a residual-current circuit breaker can handle in a nanosecond is typically around 10,000 amps. This is a very short duration of time, and the breaker is designed to quickly shut off in order to protect against dangerous electrical currents.

2. How does a residual-current circuit breaker measure and respond to nanosecond currents?

Residual-current circuit breakers use a combination of current transformers and electronic circuits to measure and respond to nanosecond currents. The current transformers sense any imbalances in the electrical current, and the electronic circuits analyze the data and trigger the breaker to shut off if necessary.

3. What causes nanosecond currents in electrical circuits?

Nanosecond currents can be caused by a variety of factors, including lightning strikes, power surges, or faults in the electrical system. These types of high-speed currents can be extremely dangerous and can lead to electrical fires or damage to sensitive electronic equipment.

4. How does the nanosecond max current rating of a residual-current circuit breaker affect its overall performance?

The nanosecond max current rating is a critical factor in determining the performance of a residual-current circuit breaker. A higher rating means that the breaker can handle larger and more dangerous currents, providing better protection for the electrical system. However, it is important to note that the overall design and quality of the breaker also play a significant role in its performance.

5. Are there any safety precautions to take when dealing with nanosecond currents and residual-current circuit breakers?

Yes, it is important to always follow proper safety protocols when dealing with electrical currents, especially those in the nanosecond range. This includes wearing appropriate protective gear, avoiding contact with live electrical components, and following manufacturer instructions for installing and maintaining residual-current circuit breakers.

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