pripojeni 2vodicove stare instalace na novou 3 vodicovou

[Naprstek, Jiri]

No, kdyz nad tim premejslim (coz mi dnes uz od rana moc nejde):

- chranic nebude fungovat v zadnem pripade (at to pripojite na PE nebo na N, jednou vyhodi vzdy, podruhe nikdy :-))
- na vodici N muze byt ubytek, ktery se objevi na obalu spotrebice, ale ten ubytek nebude vetsi, nez kdyby ta sit byla TN-C cela, tedy pripojeni na N by nemuselo znamenat apriori pruser
- pripojit PEN na PE muze znamenat, ze budete muset vyradit chranic na zacatku tehle vetve rozvodu
- vodic PE nemusi byt nutne dimenzovany na trvale zatizeni, jeho ukolem je prenaset proud jen po dobu nez vypne chranic, nebo jistic, coz nebude dele nez 400ms. S podminkami v bezne vile (ne v CERNu ;-)) lze predpokladat, ze PE by ve sve podstate mohl byt pomerne tenky drat.
- v siti TN se do cesty N nezarazuji spinaci prvky - N by mel byt beznymi cestami neprerusitelny
- zvlastni pristup: Nemohl bych TN-C chapat jako podmnozinu TN-S?

Povazuji to za prasarnu, ale dal bych spis N :-)

Hezky patek..

Jirka N.



-----Original Message-----
From: hw-list-bounces@list.hw.cz [mailto:hw-list-bounces@list.hw.cz]On
Behalf Of Zdenek
Sent: Friday, May 19, 2006 2:30 PM
To: HW-news
Subject: Re: pripojeni 2vodicove stare instalace na novou 3 vodicovou


Mate na vyber pripojit se k N nebo k PE. Protoze bude mit PEN i
ochrannou funkci, tak bych volil radeji PE, kde mate jistotu, ze to
nejaky prvek neprerusi. Je to vlasne primo spojeno s puvodnim PEN na
vstupu do domu.
Mam to takhle udelane po rekonstrukci bytu. V novych prickach mam 3
vodic, v puvodnich zdech zustal 2-drat. Je to stejna situace.

Petr Zapadlo napsal(a):
> Dne pá 19. května 2006 13:22 gatilo napsal(a):
> 
>> 19.5.2006, 13:12:47
>>Dobry den
>>
>>Ono trochu zalezi k jakemu typu site jste pripojen, pokud k
>>nejbeznejsimu TNC-S tj. privod do domu L1(L2L3)+PEN ktery se v
>>rozvadeci deli na L1(L2L3)+N+PE, pak jednoduse pripojte tu garaz jeste
>>pred rozdeleni.
> 
> 
> Ano, jsem na TNC-S, nicmene by to pro mne znamenalo tahnout kabel kolem celeho 
> baraku, cemuz jsem se chtel vyhnout, protoze mam nachystany kabel 3 vodicovy 
> do mista, odkud zacina ten dvouvodicovy.
> 
> Nejak to vymyslim. 
> 
> Dekuji za nazory.
> 
> 
> S pozdravem

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