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Anonymous Poster

Recommended Aluminium Armoured Cable

06/12/2010 8:45 AM

We want to lay Aluminium Armoured cable of around 700 mtrs from the substation & load at end required is 200 amps, what will be the Volt droppage & suggest for Cable size to be used.

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Guru
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#1

Re: Recommended Aluminium Armoured cable

06/12/2010 9:04 AM

Great, I'm glad that you want to do this work. But this one of the first five questions a qualified person must know to safely attempt this work. You do know the answer to the first question, how far of a cable run. But you don't know the voltages involved, the cable route, or even the local wiring code to follow. You've put in almost no effort to understand your dream. Heck, I've already put in more effort showing how incompetent and incomplete this question is than you have.

Please do not kill anyone and don't try this work without on site supervision from somebody that does know what to do.

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Anonymous Poster
#2

Re: Recommended Aluminium Armoured cable

06/12/2010 9:21 AM

load at end required is 200 amps. What is the load at start??......voltage droppage will be 100%. suggested cable size is 1.5mm2 .

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Guru
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#3

Re: Recommended Aluminium Armoured cable

06/12/2010 10:26 AM

This forum requires that you make some effort to solve this problem on your own. Since you have a very long distance you need to determine what the voltage will be. You can begin by going to the right of this screen to Search This Forum and enter voltage drop calculations. Come back and post your results. Glad to help but you have to make an effort.

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Guru

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#4

Re: Recommended Aluminium Armoured Cable

06/12/2010 10:20 PM

The maximum permissible voltage drop for various types of cables (in Volts per kilometer per ampere) is given in various Standards and also is published by Cbale Manufacturers in their Catalogues. Please refer to them.

Now, you decide what is thetolerable voltage drop of your load at the load end, both steady-state voltage drop & transient voltage drop. Select a cbale which has voltage drop less than this.

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Guru
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#5

Re: Recommended Aluminium Armoured Cable

06/13/2010 3:33 PM

"DANGER, DANGER WILL ROBERNSON!!!"

<hooks flailing wildly>

If you do not know how to perform a simple cable voltage drop calculation using the applicable cable data referenced to the applicable country-specific electrical standards you should not be performing this dangerous electrical design work. I would advise re-training.

If this is only a general interest inquiry, try an internet search or a search of CR4 for more information.

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Guru
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#6

Re: Recommended Aluminium Armoured Cable

06/15/2010 3:34 AM

→ British Standard 7671.

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Anonymous Poster
#7
In reply to #6

Re: Recommended Aluminium Armoured Cable

06/15/2010 6:49 AM

Are you dealer of Britsh standard??...I can see you everywhere with British standard....British standard....

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