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Butterfly2
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Join Date: Sep 2009
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Electrical Wires LT/HT Safe Distance

11/05/2012 7:44 AM

Greetings! would appreciate link/answer to find me standard safe distance required in LT/HT/EHT (EXTRA HT) CABLE networking, please.
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TonyS
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#1

Re: Electrical Wires LT/HT safe distance

11/05/2012 7:56 AM

Why should I in the UK look for your local codes in Pakistan. Try having a look yourself.

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7anoter4
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#2

Re: Electrical Wires LT/HT Safe Distance

11/05/2012 11:46 PM

See: IEC 61936-1 or National Electric Safety Code [IEEE C2-2007 ] ch.124. Guarding live parts

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Butterfly2
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#3
In reply to #2

Re: Electrical Wires LT/HT Safe Distance

11/06/2012 12:15 AM

Thank u for sharing info. we at work use phrase "safe distance" alot. For live wires i heard 6 to 10 feet is must keep dist. This statement exist as word of mouth no specifically mentioned( as in my knowledge so far) so put this query at forum.
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PWSlack
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#5
In reply to #3

Re: Electrical Wires LT/HT Safe Distance

11/06/2012 3:23 AM

That's good advice.

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7anoter4
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#4

Re: Electrical Wires LT/HT Safe Distance

11/06/2012 1:57 AM

Nevertheless the word "cable" generally could means "stranded wire" [electrical or mechanical] by word "cable" one usually understands "insulated wire or cable".

If you need to know the safety distance between overhead transmission lines live [bare] conductors this is not connected with my answer, indeed.

In my opinion, does not exist any standard rule for this. One has to calculate the slack in all configurations [taking in consideration the span and the load-ice, wind and so on].

The minimum gap has to be compared with the minimum required for air withstand BIL-also in possible pressure and temperature.

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Joshi
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#6

Re: Electrical Wires LT/HT Safe Distance

11/07/2012 2:38 AM

MODEL SUPPLY CODE - Forum of Regulators

PTCC Manual 2010 - Central Electricity Authority
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