specialni chranic na elektromobil

[Petr Labaj]

Jsem hloupej a žeru seno. Ale nechápu to.
Co znamená "vypnutí u hladkých stejnosměrných reziduálních proudů > 6 mA"?
Jednak jak na AC rozvodu vznikají DC proudy. A proč by se to mělo zrovna 
u elektroauta nějak speciálně ošetřovat?

Asi si EV nemůžu koupit, když nechápu ani tak základní věc, jako 
chránič, přes který bych to nabíjel. :-(

PL

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Dne 12.6.2020 v 9:30 Pavel Urbancik napsal(a):
> Už to taky čtu, takže asi umí měřit i DC proud.
> Není to úplně levná sranda ...
>
>
> -----Original Message-----
> From: Hw-list <hw-list-bounces na list.hw.cz> On Behalf Of Pavel Kadecka
> Sent: Freitag, 12. Juni 2020 09:26
> To: HW-news <hw-list na list.hw.cz>
> Subject: Re: specialni chranic na elektromobil
>
> Asi viz datasheet:
>
> https://image.schrackcdn.com/montageanleitungen/b_bdev4403--.pdf
>
> Description Type A, EV-design residual current circuit-breakers (RCCB) detect non-auxiliary-dependent pulsating DC and AC residual currents at the rated frequency in accordance with the requirements of IEC/EN
> 61008-1 for Type A RCCBs. The integrated additional device, which depends on the auxiliary voltage, detects smooth DC residual currents and triggers safe isolation of the downstream faulty system part from the supplying mains if a value of 6 mA is exceeded. All requirements set out in DIN V VDE V 0664-120 for RCCBs with additional equipment have been meet. The RCCB is designed exclusively for use in equipment which charges electric vehicles in charge operating mode 3 according to IEC 61851-1 when smooth DC residual currents are to be expected while charging electric vehicles. The FI-EV RCCB is therefore suitable for the protective measure 'Automatic switch-off of power supply', as required by HD 60364- 7-722 for each connection point when charging electric vehicles, when smooth DC residual currents > 6 mA are to be expected in the event of a fault.
>
> Pavel Kadečka.
>