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#130632 - 09/15/06 09:50 AM USABILITY OF CABLE WIRE  
satishkumar  Offline
Junior Member
Joined: Sep 2006
Posts: 5
hyd,ap,india
CAN WE USE THE CABLE WIRE THAT IS DESIGNED FOR (6 A, 240V,50 HZ) FOR (10A, 115 V,60 HZ)?WHAT HAPPENS IF WE USE(10A, 115 V,60 HZ)CABLE FOR 6 A, 240V,50 HZ?


satish

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#130633 - 09/15/06 02:18 PM Re: USABILITY OF CABLE WIRE  
Bob  Offline
Member
Joined: Feb 2002
Posts: 182
Mobile, AL, USA
"CAN WE USE THE CABLE WIRE THAT IS DESIGNED FOR (6 A, 240V,50 HZ) FOR (10A, 115 V,60 HZ)?WHAT HAPPENS IF WE USE(10A, 115 V,60 HZ)CABLE FOR 6 A, 240V,50 HZ?"

The cable is good for 6 amps. Its not ok to push 10 amps. The cable will get hot and fail. Its ok to use a cable designed for 10 amps with a 6 amp load but not a 240 volts.
You need to check the insulation rating and see if it will operate at 240 volts.


#130634 - 09/16/06 06:42 AM Re: USABILITY OF CABLE WIRE  
pauluk  Offline
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
The current rating is largely a function of the size of the conductor, while the voltage rating is dependent upon the insulation.

As Bob says, neither rating should be exceeded.


#130635 - 09/16/06 01:09 PM Re: USABILITY OF CABLE WIRE  
JoeTestingEngr  Offline
Member
Joined: Nov 2005
Posts: 790
Chicago, Il.
I would add that the 50Hz Vs 60Hz doesn't really come into play with your practical considerations.
Joe


#130636 - 09/22/06 12:44 PM Re: USABILITY OF CABLE WIRE  
RSmike  Offline
Member
Joined: Nov 2002
Posts: 134
Holland, MI USA
Don't try to apply Ohm's law to readjust cable specs. As everyone else has pointed out. Current is current you can never exceed this amount in the wire.

If somehow you are thinking Ohm's Law allows you to varying the rating you are confused here. If it's rated for 10A at 120VAC then you cannot just run it at 5A at 240VAC. Although you staisfied Ohm's Law (double the voltage gives you half the current) you have exceed the insulation voltage rating.

What guage (diameter of the metal conductor)is this wire.....???

RSlater,
RSmike


#130637 - 10/01/06 09:49 AM Re: USABILITY OF CABLE WIRE  
smokumchevy  Offline
Member
Joined: Feb 2003
Posts: 60
Ottawa, Ontario, Canada
Dear new member,

I notice that all your questions seem to stem from typical textbook questions, especially when you state things like "in the above picture" etc.

Pls, new member and experienced members, kindly do not simply give out the answers, even with explanations unless it is perhaps a specific request for definition help based on something the person is stuck on.

It really does no justice to the person asking to simply answer his homework, and I say that as a learning apprentice myself.

I know the intentions from the experienced guys here are good, and love to share their knowledge and help, but as stated above, the person must learn the basics of finding the answers within their texts so as to absorb that information properly.

This is just my observation and advice, take it or leave it but I had to get it out.

Sincerely (and I do mean it),
Greg

[This message has been edited by smokumchevy (edited 10-01-2006).]



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