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Insulation of wires from computer power supplies

I

Ignoramus12063

Jan 1, 1970
0
There are numerous wires coming out of 12V computer power supplies. I
would like to know if their insulation is adequate for 115VAC
connections. Does anyone know if they are required to conform to any
standard? They are nice because tere are many different colors
available in any bundle.

i

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L

linnix

Jan 1, 1970
0
Ignoramus12063 said:
There are numerous wires coming out of 12V computer power supplies. I
would like to know if their insulation is adequate for 115VAC
connections. Does anyone know if they are required to conform to any
standard?

Yes, they are rated for the corresponding voltages, usually, 12V,5V and
3.3V.
They are nice because tere are many different colors
available in any bundle.

Just have your local fire department in stand-by. Don't expect any UL
approval either.
 
K

kell

Jan 1, 1970
0
Ignoramus12063 said:
There are numerous wires coming out of 12V computer power supplies. I
would like to know if their insulation is adequate for 115VAC
connections. Does anyone know if they are required to conform to any
standard? They are nice because tere are many different colors
available in any bundle.

I'd only use thinly insulated wires like that inside an enclosure,
not for external power lines.
I'm sure the insulation would withstand 115 volts, but it doesn't
have much strength and would be easy to break or strip
if it gets yanked on or rubs against the edge of something.
 
I

Ignoramus12063

Jan 1, 1970
0
I looked closely at some wires that I chopped off the 12v power supplies that
were being thrown away at work.

The wires are actually rated for 300 volts.

Case closed, as far as 115V is concerned. I will use them for various
projects, I really like having multicolored wire.

i

I'd only use thinly insulated wires like that inside an enclosure,
not for external power lines.
I'm sure the insulation would withstand 115 volts, but it doesn't
have much strength and would be easy to break or strip
if it gets yanked on or rubs against the edge of something.


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C

Charles Schuler

Jan 1, 1970
0
Ignoramus12063 said:
I looked closely at some wires that I chopped off the 12v power supplies
that
were being thrown away at work.

The wires are actually rated for 300 volts.

Case closed, as far as 115V is concerned. I will use them for various
projects, I really like having multicolored wire.

So, the point of your post was?
 
R

Roger Hamlett

Jan 1, 1970
0
Ignoramus12063 said:
I looked closely at some wires that I chopped off the 12v power supplies
that
were being thrown away at work.

The wires are actually rated for 300 volts.

Case closed, as far as 115V is concerned. I will use them for various
projects, I really like having multicolored wire.

i
Hint. 300V_what_. A wire rated for 300VDC, is _just_ safe for 115VAC. The
normal conversion factor, is 2.25*. However you also need to know whether
this voltage is the 'rated working' voltage, or the 'proof/test' voltage.
If you realise that 'mains', can have some significant transients, this
wire may be very close to it's maximum rating, and above it's design
working voltage...

Yes.

Best Wishes
 
D

Dmitri

Jan 1, 1970
0
Tim said:
That he's too cheapass to buy it. ;-)

So, what is wrong with getting good functioning parts, such as these
colored jumpers, for free if all you need to do is to pull out your snips?

-------------------------------------
--
Dmitri Abaimov, RCDD
http://www.cabling-design.com
Cabling Forum, color codes, pinouts and other useful resources for
premises cabling users and pros
http://www.cabling-design.com/homecabling
Residential Cabling Guide

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I

Ian Stirling

Jan 1, 1970
0
linnix said:
Yes, they are rated for the corresponding voltages, usually, 12V,5V and
3.3V.

No, they aren't.
It's not practical to make a wire with 3.3V insulation, with any common
insulating material - insulation which breaks down at (say) 10v would be
a very, very thin varnish, and certainly unsafe around the sharp metal
corners inside PCs.
 
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