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Akihito Shigeno
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Join Date: Oct 2008
Location: Jakarta Indonesia
Posts: 123
Good Answers: 7

Cable Voltage Designation

07/14/2010 12:04 AM

Dear all,

If a cable is designated as 3.8/6.6(7.2)kV power cable, you can use this cable up to 7.2kV between conductors. However, I do not know the meaning of 6.6. Can anybody explain this for me?

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 Akihito Shigeno @ JGC-Indonesia
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kvsridhar
Guru
India - Member - New Member

Join Date: Sep 2009
Location: Temporarily at Ashburn, VA
Posts: 2744
Good Answers: 164
#1

Re: Cable Voltage Designation

07/14/2010 12:47 AM

Could it have something to do with ΥΔ ? Seems 3.8*√3 ≈ 6.6 kV .. i don't know if this has any bearing.

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anbarasu.pr
Associate

Join Date: May 2009
Location: INDIA
Posts: 25
#2

Re: Cable Voltage Designation

07/14/2010 4:26 AM

Uo/U (Um) : 3.8/6.6 (7.2)

Uo - Rated Phase to Ground voltage

U - Rated Phase to Phase voltage

Um - Highest permisible voltage of the grid
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