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2x0.5 mm power wire -- how much amp ?

Y

Yakov

Jan 1, 1970
0
I have 2x0.5 mm power wire ... how much amp can it safely stand ?
(220 V here)

Thanks
Yakov
 
D

Dave Plowman (News)

Jan 1, 1970
0
I have 2x0.5 mm power wire ... how much amp can it safely stand ?
(220 V here)

In the UK (230v) 0.5mm² twin flex is rated at 3 amps.
 
H

Homer J Simpson

Jan 1, 1970
0
In the UK (230v) 0.5mm² twin flex is rated at 3 amps.

It's generally the same current rating no matter the voltage.
 
E

Eeyore

Jan 1, 1970
0
Dave Plowman (News) said:
In the UK (230v) 0.5mm² twin flex is rated at 3 amps.

In reality more like 240V and it's 250V right here.

Graham
 
E

Eeyore

Jan 1, 1970
0
Dave Plowman (News) said:
It's a nominal voltage like all domestic supplies.

It's a straight fib in the case of the UK for reasons of political correctness.

Graham
 
It's a straight fib in the case of the UK for reasons of political correctness.

I'm not sure which figure you mean, nor what you mean by 'straight
fit', but I'm not sure the term would sit completely comfortably with
either figure.


NT
 
D

Dave Plowman (News)

Jan 1, 1970
0
"Dave Plowman (News)" wrote:
It's a straight fib in the case of the UK for reasons of political
correctness.

Not really, although the original 240 wasn't altered. They just changed
the allowed spread to harmonise with Europe.
 
H

Homer J Simpson

Jan 1, 1970
0
Not really, although the original 240 wasn't altered. They just changed
the allowed spread to harmonise with Europe.

I remember all of those German radios with the multiple voltage primaries.
There must have been a lot of different systems then.
 
P

Peter Dettmann

Jan 1, 1970
0
It's generally the same current rating no matter the voltage.

Depends a bit on whether you rate the cable for how hot you allow it
to get in a specified environment, or as here where the rating of a
cable is based on the allowable circuit voltage drop expressed as a
percentage of the nominal voltage over a specified length.

Peter Dettmann
 
H

Homer J Simpson

Jan 1, 1970
0
Depends a bit on whether you rate the cable for how hot you allow it
to get in a specified environment, or as here where the rating of a
cable is based on the allowable circuit voltage drop expressed as a
percentage of the nominal voltage over a specified length.

Environment is a factor. So is the number of other current carrying cables
packed with it.

But the OP gave no other details.
 
D

Dave Plowman (News)

Jan 1, 1970
0
Environment is a factor. So is the number of other current carrying
cables packed with it.
But the OP gave no other details.

I assumed it is a power cord or flex rather than permanent house wiring by
the size, and this type of cable is expected to be exposed?
 
E

Eeyore

Jan 1, 1970
0
I'm not sure which figure you mean, nor what you mean by 'straight
fit', but I'm not sure the term would sit completely comfortably with
either figure.

The reasoning is as follows.

The voltage in the UK was 240V. In mainland Europe it was 220V.

In order to 'harmonise' the voltage in the EU a 'political decision' was made to call
it 230V and widen the tolerances.


Graham
 
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