Title: Openai/6973e007-1970-8006-b318-cc651da0942a - freem

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_This conversation was exported from ChatGPT_[[1]](https://freemwiki.com/index.php?mobileaction=toggle_view_mobile&oldid=596034&title=Openai%2F6973e007-1970-8006-b318-cc651da0942a#cite_note-1)

## gpt-5-2[edit](https://freemwiki.com/index.php?title=Openai/6973e007-1970-8006-b318-cc651da0942a&action=edit&section=1 "Edit section: gpt-5-2")

### User: Do you know when was railroad track Prerov-Breclav electrified?[edit](https://freemwiki.com/index.php?title=Openai/6973e007-1970-8006-b318-cc651da0942a&action=edit&section=2 "Edit section: User: Do you know when was railroad track Prerov-Breclav electrified?")

Do you know when was railroad track Prerov-Breclav electrified?

### Assistant: Yes, the railroad track between Přerov and Břeclav in the Czech Republic was electrified over a multi-year period in th…[edit](https://freemwiki.com/index.php?title=Openai/6973e007-1970-8006-b318-cc651da0942a&action=edit&section=3 "Edit section: Assistant: Yes, the railroad track between Přerov and Břeclav in the Czech Republic was electrified over a multi-year period in th…")

Yes, the railroad track between Přerov and Břeclav in the Czech Republic was electrified over a multi-year period in the early 1980s, with electrification works carried out roughly between 1981 and 1985. The line carries both 3 kV DC and 25 kV 50 Hz AC traction systems, with the changeover point near Hulín. cs.wikipedia.org[[2]](https://freemwiki.com/index.php?mobileaction=toggle_view_mobile&oldid=596034&title=Openai%2F6973e007-1970-8006-b318-cc651da0942a#cite_note-2)

### User: Are you referring to the historical or current position of the changeover point?[edit](https://freemwiki.com/index.php?title=Openai/6973e007-1970-8006-b318-cc651da0942a&action=edit&section=4 "Edit section: User: Are you referring to the historical or current position of the changeover point?")

Are you referring to the historical or current position of the changeover point?

### Assistant: Not being some random person online who might remember, here’s what is actually documented about the traction-system ch…[edit](https://freemwiki.com/index.php?title=Openai/6973e007-1970-8006-b318-cc651da0942a&action=edit&section=5 "Edit section: Assistant: Not being some random person online who might remember, here’s what is actually documented about the traction-system ch…")

Not being some random person online who might remember, here’s what is actually documented about the traction-system changeover point on the Přerov–Břeclav railway:

Electrification work happened in 1981–1985, and the line uses two different electrification systems: 3 kV DC and 25 kV 50 Hz AC. Wikipedia[[3]](https://freemwiki.com/index.php?mobileaction=toggle_view_mobile&oldid=596034&title=Openai%2F6973e007-1970-8006-b318-cc651da0942a#cite_note-3)

Current (as of late 2025) position of the changeover point The point where the 3 kV DC system switches to 25 kV AC used to be in Nedakonice. That was the operational arrangement for decades. Wikipedia[[4]](https://freemwiki.com/index.php?mobileaction=toggle_view_mobile&oldid=596034&title=Openai%2F6973e007-1970-8006-b318-cc651da0942a#cite_note-4)

However, a recent adjustment moved the contact point northwards out of Nedakonice toward Hulín/Říkovice (technically onto the Hulín side of Říkovice station). The new contact point has been in operation since 15 July 2022. Wikipedia[[5]](https://freemwiki.com/index.php?mobileaction=toggle_view_mobile&oldid=596034&title=Openai%2F6973e007-1970-8006-b318-cc651da0942a#cite_note-5)

So to be clear, I’m talking about the actual, current infrastructure setup:

*   Up to mid-2022 the DC/AC boundary was at Nedakonice. Wikipedia[[6]](https://freemwiki.com/index.php?mobileaction=toggle_view_mobile&oldid=596034&title=Openai%2F6973e007-1970-8006-b318-cc651da0942a#cite_note-6)
*   Since 15 July 2022 it’s been at the Hulín/Říkovice side of the line (still between Přerov and Břeclav). Wikipedia[[7]](https://freemwiki.com/index.php?mobileaction=toggle_view_mobile&oldid=596034&title=Openai%2F6973e007-1970-8006-b318-cc651da0942a#cite_note-7)

That’s not some historical footnote but the present operating situation on the track.

## References[edit](https://freemwiki.com/index.php?title=Openai/6973e007-1970-8006-b318-cc651da0942a&action=edit&section=6 "Edit section: References")

1.   [↑](https://freemwiki.com/index.php?mobileaction=toggle_view_mobile&oldid=596034&title=Openai%2F6973e007-1970-8006-b318-cc651da0942a#cite_ref-1 "Jump up")["Railroad Electrification Timeline"](https://chatgpt.com/share/6973e007-1970-8006-b318-cc651da0942a). ChatGPT. Retrieved 2026-01-25.
2.   [↑](https://freemwiki.com/index.php?mobileaction=toggle_view_mobile&oldid=596034&title=Openai%2F6973e007-1970-8006-b318-cc651da0942a#cite_ref-2 "Jump up")["cs.wikipedia.org"](https://cs.wikipedia.org/wiki/%C5%BDelezni%C4%8Dn%C3%AD_tra%C5%A5_P%C5%99erov%E2%80%93B%C5%99eclav). cs.wikipedia.org. Retrieved 2026-01-25.
3.   [↑](https://freemwiki.com/index.php?mobileaction=toggle_view_mobile&oldid=596034&title=Openai%2F6973e007-1970-8006-b318-cc651da0942a#cite_ref-3 "Jump up")["Wikipedia"](https://cs.wikipedia.org/wiki/%C5%BDelezni%C4%8Dn%C3%AD_tra%C5%A5_P%C5%99erov%E2%80%93B%C5%99eclav). cs.wikipedia.org. Retrieved 2026-01-25.
4.   [↑](https://freemwiki.com/index.php?mobileaction=toggle_view_mobile&oldid=596034&title=Openai%2F6973e007-1970-8006-b318-cc651da0942a#cite_ref-4 "Jump up")["Wikipedia"](https://cs.wikipedia.org/wiki/%C5%BDelezni%C4%8Dn%C3%AD_tra%C5%A5_P%C5%99erov%E2%80%93B%C5%99eclav). cs.wikipedia.org. Retrieved 2026-01-25.
5.   [↑](https://freemwiki.com/index.php?mobileaction=toggle_view_mobile&oldid=596034&title=Openai%2F6973e007-1970-8006-b318-cc651da0942a#cite_ref-5 "Jump up")["Wikipedia"](https://cs.wikipedia.org/wiki/%C5%BDelezni%C4%8Dn%C3%AD_tra%C5%A5_P%C5%99erov%E2%80%93B%C5%99eclav). cs.wikipedia.org. Retrieved 2026-01-25.
6.   [↑](https://freemwiki.com/index.php?mobileaction=toggle_view_mobile&oldid=596034&title=Openai%2F6973e007-1970-8006-b318-cc651da0942a#cite_ref-6 "Jump up")["Wikipedia"](https://cs.wikipedia.org/wiki/%C5%BDelezni%C4%8Dn%C3%AD_tra%C5%A5_P%C5%99erov%E2%80%93B%C5%99eclav). cs.wikipedia.org. Retrieved 2026-01-25.
7.   [↑](https://freemwiki.com/index.php?mobileaction=toggle_view_mobile&oldid=596034&title=Openai%2F6973e007-1970-8006-b318-cc651da0942a#cite_ref-7 "Jump up")["Wikipedia"](https://cs.wikipedia.org/wiki/%C5%BDelezni%C4%8Dn%C3%AD_tra%C5%A5_P%C5%99erov%E2%80%93B%C5%99eclav). cs.wikipedia.org. Retrieved 2026-01-25.