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> Discutii pe teme feroviare - Despre trenuri !, DOAR material rulant

mcNelu
post 1 Jul 2019, 21:34
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Au avut loc chiar anul acesta si mai urmeaza (vine apa, cu resturi, infunda canale, ele refuleaza, ma scuzati (din cauza calotei glaciare, inclusiv Groenlanda) si nu pot curenta din aceasta cauza? Eu unul ma indoiesc, cred ca le ,,decupleaza,, automat.
Trebuie sa fie ceva panou(ri) de avertizare exista retea voltaica. Nu sunt ? De aici reflex cu cizmele de cauciuc.

This post has been edited by mcNelu: 1 Jul 2019, 21:42


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MuciX
post 1 Jul 2019, 21:55
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Bicicleta galbena
post 1 Jul 2019, 22:08
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Din ce zic baietii curentul trece doar cand e tramvaiul deasupra (actionat cumva cu ajutorul greutatii tramvaiului).
Or gasi ei o solutie tehnica si la posibilitatea inundarii rolleyes.gif
Altfel ar fi inundat orasul cu frumoasele cizme de cauciuc biggrin.gif




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cj98czh
post 1 Jul 2019, 22:21
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QUOTE(gibonu @ 1 Jul 2019, 22:21)
Exista deja autobuze electrice pentru zonele centrale, am vazut la Paris, in Montmartre, niste autobuze mici, full electrice.
*



Nu trebuie sa mergi pana la Paris .. sunt in Cluj ... full electrice .. si n u sunt chiar micute ... cam cat astea turcesti aduse de Firea ..

https://cluj.com/articole/25-autobuze-electrice-la-cluj/

This post has been edited by cj98czh: 1 Jul 2019, 22:23


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dizzy
post 2 Jul 2019, 08:07
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Nu tin cu ursu, dar

APS uses a third rail placed between the running rails, divided electrically into ten-metre rail segments with three-metre neutral sections between. Each tram has two power collection shoes, next to which are antennas that send radio signals to energise the power rail segments as the tram passes over them. At any one time, two consecutive segments under the tram will be live.

Daca ai un pic de ghinion si esti descult prin ploaie si esti cu un picior pe linia din mijloc, cu un picior pe o linie laterala, si tramvaiul comanda alimentarea sinei de 10 m in fata lui pe care stai si tu, poti sa te curentezi? Nu trebuie sa fie ditai balta.
Ceva presupun ca gresesc eu...


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gibonu
post 2 Jul 2019, 08:49
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Producatorul sistemului spune ca:

"These segments automatically switch on and off according to whether a tram is passing over them, thereby eradicating any risk to other road users. This safety principle was certified by several competent bodies all over the world."
Sursa: https://www.alstom.com/our-solutions/infras...mway-operations

Acum cred ca este clara treaba ca segmentul respectiv are curent in el doar cand trece tramvaiul pe deasupra lui.
Cam asta este diferenta intre Europa civilizata si RO care inca foloseste tramvaie Tatra fabricate in anul 1975 intr-o tara care nu mai exista.


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Bicicleta galbena
post 2 Jul 2019, 08:58
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QUOTE(dizzy @ 2 Jul 2019, 09:07)
Nu tin cu ursu, dar

APS uses a third rail placed between the running rails, divided electrically into ten-metre rail segments with three-metre neutral sections between. Each tram has two power collection shoes, next to which are antennas that send radio signals to energise the power rail segments as the tram passes over them. At any one time, two consecutive segments under the tram will be live.

Daca ai un pic de ghinion si esti descult prin ploaie si esti cu un picior pe linia din mijloc,  cu un picior pe o linie laterala, si tramvaiul comanda alimentarea sinei de 10 m in fata lui pe care stai si tu, poti sa te curentezi? Nu trebuie sa fie ditai balta.
Ceva presupun ca gresesc eu...
*


Cred ca au calculat 10 metri de la 'papucii' colectori, si nu 10m din fata tramvaiului. Probabil ca mai raman 4-5m, poate chiar mai putin ceea ce, in mers fiind, e egal cu siguranta 100%.



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dizzy
post 2 Jul 2019, 09:11
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Tramvaiele Tatra au fost preferatele mele in copilarie.
Am mers in Cehoslovacia (tara care nu mai exista) si acolo aveau si functia de tramvai interurban, alergau cu 60km/h, aratau bine, erau aerrodinamice.
Un utilaj simplu si frumos.



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gibonu
post 2 Jul 2019, 09:22
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Nu stiu cum sa exprim mai clar ca segmentul respectiv este sub tensiune doar atunci cand tramvaiul este deasupra lui.

@dizzy
Intr-adevar, tramvaiele Tatra sunt niste utilaje simple si frumose.
Insa, parca exista o diferenta intre tramvaiul Tatra si tramvaiul Alstom Citadis / similar care circula azi in Europa civilizata si nu doar pe acolo.

Ca fapt divers, prima data am mers cu un tramvai 100% low-floor si dotat cu aer conditionat la Istanbul, in septembrie 2004 (an scris bine anul). Atunci, am avut impresia ca merg cu OZN-ul.


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dizzy
post 2 Jul 2019, 10:43
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Eu am fost in Cehoslovacia prin 1988, si am mers cu Tatra.
Pe atunci aveam V3A pe aici, EP-uri.
Alstom asta e OZN.
Am mai mers prin Germania cu tramvaie interurbane destul de vechi dar functionale, in stare buna, curate.

This post has been edited by dizzy: 2 Jul 2019, 10:51


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einstein1984
post 2 Jul 2019, 11:43
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daca e vreun risc sa te elctrocutezi pe linia aia, in secunda 2 vei fi lovit de tramvai si intrerupe circuitul, e ok.


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