FI Schutzschalter an Powerstation?
Hallo,
ich habe gelesen, dass bei Powerstationen (Jackery, Ecoflow etc.) kein entsprechender FI-Schutzschalter verbaut ist (anders als bei der heimischen Steckdose).
Ist es dann nicht hier schon gefährlich, überhaupt elektrische Geräte dran zu betreiben? Weil egal, welches Gerät ich betreibe (Mixer, Kaffeemaschine, Handy aufladen etc.) löst ja kein FI-Schalter aus und ich bin nicht geschützt.
Oder habe ich einen Denkfehler?
Danke und LG
(No Ratings Yet)
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A FI-protection conductor on the portable power station would be as helpful as a lightning arrester on the smartphone.
The power station does not have any active grounded conductors (leading current in regular operation), such as the zero conductor in the public supply network, and thus also no conductor leading to ground voltage. Where should a “error current” flow from? Current failures due to the simultaneous contact of both active conductors cannot prevent or mitigate any FI circuit breaker.
No more wild, there’s an IT network. The Geraffel is wrapped in plastic and thus isolated against earth. If the whole time with you – conductive – is in a puddle, just hope the inverter tears off.
I hope you won’t come to the idea of connecting such a thing to the system of your home electronics, will you?
No, of course not. But at home, the outlets are grounded and not at all. That’s why I ask.
“…at home, the outlets are grounded and not in such a part.”
Right! And that’s why the FI switch on the portable generator is as helpful as the rubber boots on the goldfish.
This is because the whole house installation is grounded.
At home, the network is also a TN system in which the star point is connected to the operator.
As long as you don’t make a ground connection with the thing – even not accidentally – is a little danger.
Correctly determined.
In the TN system, as already mentioned, the star point is grounded from the net penalty. The current flows through the earth at a ground closure. There is no grounded star point in an IT system, so in the event of a fault no current would flow to the Earth. Because electricity can only flow when the circuit is closed.
https://youtu.be/pfBbaj9WcBM
Thank you. I had read that the power stations work with the IT network and not with the TN network. Can you tell me why there is no earthing here?
Sure.
@SuperKuhnibert4 And with such a cable that I had linked up above, could I use a suitable adapter (CEE on Schuko) to take a power station as a feed for the caravan?
@SuperKuhnibert4 You were faster.
Of course there is an earthing. Looks like the three-pole plug.
Precisely – that’s why my advice, never, unintentionally, is to create earth connections between such a power station or emergency power truffle.
And what is with such a cable: here the FI protection is given, but still there is no earthing.
TITLE II
A FI only makes sense when electricity can flow back to the source other than through the cable. This is given in our house installation because the one pole of the socket (neutral conductor) is connected to the earth. So, from the other pole (outer conductor/phase) current can flow back via a defective device, (man) the earth.
A power station doesn’t work because it’s not grounded.
By the way, FI is mandatory only for bathroom. In older electrical installations, the other sockets are not necessarily protected.
A fuse against overload has all sockets and will also have the power station.
But isn’t it dangerous to operate electric devices without grounding at the power station? No matter what device now.
“….it is not dangerous to operate electric devices without grounding at the power station? ….
On the contrary! The power station is therefore comparatively harmless because it without earthing an active conductor works in contrast to the public supply network.
In the event of a power accident, the victim touches two conductors, which lead to a threatening voltage on the opposite side. If, as in the public supply network, one of the two active conductors is grounded, the accident victim is usually connected to one of the two active conductors via the ground (via the feet). Then it comes to the power strike when only the other conductor is touched. Protective conductors and FI protectors from such accidents.
No grounding is not provided on the one hand in an island net and on the other double-productive.
The network is in this way and in some cases even safer than the normal power grid because only a double error can lead to a flow of current across people. Therefore, there are such networks also in hospitals and also razor socket in the bathroom are so isolated.
And what is with such a cable: here the FI protection is given, but still there is no earthing.
TITLE II
This is outdated, meanwhile FI switches are mandatory in all socket circuits and also in pure light circuits
Hello together,
I have a power station and would like to connect it to a power box with various fuses for consumers in my hut. The DC output of the power station is to be used as a power source.
I also wanted to install a FI switch, but did I read here that this may not be necessary? Can I also only work with the fuses without a FI switch?
Thanks for every impulse!
Such a device has no grounded star point. In this respect, a FI circuit breaker would not work at all.
But isn’t it dangerous to operate electrical devices without grounding?
No, why would it? A grounding will only bring you something if the star point is grounded. And this is not the case with such a “power station”. So you don’t even get an electric blow when you touch an active conductor.
Yes, the plug has a protective conductor connection and the line is three-wire.
This means that in the supply network the point at which the three windings of the mains transformer are connected to one another is grounded. And that’s not like a power station. It is virtually a protection separation since the circuit is not connected to the supply network at all.
And what is with such a cable: here the FI protection is given, but still there is no earthing.
TITLE II
What does “The Star Point” mean? Sorry, I’m not an electrician and I don’t know much about it.