current carrying capacity of copper & alluminium cable

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Manrop.chennai.

→ British Standard 7671.

There seems to be a problem with several keys on that paricular keyboard. A keyboard change is the recommended couse of action.

You Nailed him....

Guest,

You seem to be a little testy this morning. By the way, your spelling is atrocious, as are your manners.

atrocious - exceptionally bad or displeasing; "atrocious taste"; "abominable workmanship"; "an awful voice"; "dreadful manners"; "a painful performance"; "terrible handwriting"; "an unspeakable odor came sweeping into the room"

Have a GREAT day.

1) 287 amps.

2) 826 amps.

3) 1275 amps.

4) 729 amps.

5) 1107 amp.

All specs are for 70 degrees C.

Did you specify the degree rise? Depending on the insulation, bundling, etc the numbers will vary. For code installations, obviously, follow the code. Are there voltage specifications that have to be met? Lots of questions, not many answers.

1. 1.5sqmm*4core armoured copper cable - 4000A

2. 4 sqmm*4core armoured copper cable - 3500A

3.10sqmm s/c multistand copper flexible cable- 2500A

3. 10 sqmm*4core armoured alluminium cable - 3000A

5. 16sqsqmm*4core armoured alluminium cable- 1000A

In Your Dreams Mate.

1. = 5A

2. = 4A

3. = 3A

4. = 2A

5. = 1A

Check out these charts! What you want is half way down the page!

I love the way this question continues to appear. You can do a Google search to get a referral there or if you must get an answer here you can try the Search CR4 option.

The thing that makes me laugh about this is that everyone assumes that the current will be constant. There really is no current limit these wire dimensions have if one uses a brief pulse and if you do not care if the wire survives for a second pulse. Coin shrinking is one example of this. For those who want to see a video, here is another group. In the high speed video you'll see that the current flows through the coil and shrinks the coin before the wire vaporizes.

1. = 5A/1A

2. = 4A/2A

3. = 3A/3A

4. = 2A/4A

5. = 1A/5A

It depends upon the insulation,amb temp,method of laying etc

It looks you are beginner/learning,first thing you are not specified method of installation,ambient temperature etc.for this small size cables u better to refer

cable manufacturer catalogue u will get all the details and apply diversity factor based on your country/region.

method of installation :- GI cable tray under raised floor.

ambient temperature:- 5 deg C.

diversity factor:- 0.04

Now what??..

ambient 5 deg c you are using in which country,it seems joking.

Iceland......please give me answer as you promised.