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GURUMOORTHY
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Join Date: Sep 2011
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Trefoil Arrangement

04/02/2012 2:51 PM

As per the Company spec, it indicates Under HT cables, above ground laying.

Please guide, the requirement of trefoil arrangement for LV(440V), 6 Runs of 630Sq.mm/Phase, Single core cables in under ground, with duct bank provision.
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jack of all trades
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#1

Re: Trefoil Arrangement

04/02/2012 3:19 PM

Have you read your local electrical standards, codes of practice and cable manufacture literature?

Are you qualified to perform this work (be it design or installation) or is this a general interest question.

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TonyS
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#2

Re: Trefoil Arrangement

04/02/2012 3:40 PM

I've just re-read your previous posts and I would make a suggestion.

Please find a new occupation before you kill some innocent bystander.

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sridharganasen
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#3

Re: Trefoil Arrangement

04/03/2012 5:25 AM

so what you want?
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electricalexpert65
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#4

Re: Trefoil Arrangement

04/03/2012 11:21 AM

Pl. refer to IS 1255. A very clear picture is give to answer your query.
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GURUMOORTHY
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#5
In reply to #4

Re: Trefoil Arrangement

04/07/2012 12:24 PM

I studied the Standard of IS 1255. Also IEC 60092-352 given the idea of Installation. These standards says only about three phase circuits. Could you please confirm in case 3 Phase, 4 wire system. Can we lay Neutral with this arrangement. please guide with respect to practical condition also.
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electricalexpert65 (1); GURUMOORTHY (1); jack of all trades (1); sridharganasen (1); TonyS (1)

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