Glossary entry

English term or phrase:

Cross-tie lines

English answer:

Interconnecting power lines

Added to glossary by Masoud Kakouli Varnousfaderani
Jun 3, 2016 05:48
7 yrs ago
2 viewers *
English term

Cross-tie lines

English Other Nuclear Eng/Sci
Cross-tie lines had been installed at the Fukushima Daiichi NPP nearly a decade earlier as a design enhancement for accident management. Sharing the functioning emergency power of Unit 6 was only possible for Unit 5, since these interconnections had been installed only between pairs of units, i.e. Units 1 and 2, Units 3 and 4, and Units 5 and 6.
Change log

Jun 3, 2016 05:48: changed "Kudoz queue" from "In queue" to "Public"

Responses

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Interconnecting power lines

The emergency power systems of units 5 & 6 (and 1+2 and 3+4) were connected together so that one emergency generator could provide power to two units. This would be used when one of the emergency generators was unavailable for any reason. The power lines between each pair (plus their associated switching) are the cross-tie lines.
Peer comment(s):

agree Didier Fourcot : Confirmed by "these interconnections" in ST
44 mins
agree Yasutomo Kanazawa
1 hr
agree Lingua 5B
4 hrs
agree acetran
10 hrs
agree Jörgen Slet
1 day 55 mins
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4 KudoZ points awarded for this answer.
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