25mm cable can be thinner than 16 mm?

[JhonnyL]

[FONT=Arial, Helvetica, sans-serif]A friend of mine replaced all electrical accessories and cables during renewal of his condo.
But the main cable they installed has burned 2 days after they switced electric on.
He rejected when he asked to his supplier for replacement. The supplier said the size choosen by electrician is wrong.
And he bought again (a bigger size)

Last weekend I was there. Also the electrician was there for reinstall the cable.
[/FONT]Electrician become very angry w[FONT=Arial, Helvetica, sans-serif]hen my friend told him what supplier said.
And he showed us the old cable that reinstalled is 16 mm. But the new one that burned out is 25 mm. But seems thinner than the old.
When we visited supplier together, they informed us because of improving technology the new generation cables are thinner than old.

But electrician seems sure there is no such technology to make 25 mm cable thinner than 16mm. He suggested us to go court.
But supplier doesn't accept replacement. And no comment about burning when electrician standing with us.

Could someone comment is the suppliers information is true or sould we go court?

[/FONT]

 

[telectrix]

the cable could possibly have thinner insulation. you need to measure the conductor size. something ain't right here as the electrician should know the size of the cable he's installing. and the supplier is talking crap if he says 25mm can be thinner than 16mm ( talking here conductor size, not the overall size)

 

[Sparky_Ben]

no way, this is impossible how can something which is 25mm in csa, be smaller than a cable of say 16mm csa it cant be, hense the size

 

[SJD]

The cable size (16, 25 mm2 etc) refers to the cross sectional area of the copper (or other material, but it will be copper). With a single solid core, it is a simple matter to measure the diameter and calculate this area. With these larger cables, you will have a number of conductors - you can measure one of these conductors, calculate the area, and multiply by the number of conductors. Does that make sense?

 

[Geordie Spark]

Johhny

The 16mm and the 25mm refer to the Cross Sectional Area of the core of the cable. The core is the bare metal part without the plastic covering.

It is therefore very unlikely that a cable with a Cross Sectional Area of 25mm will ever be thinner than one with a Cross Sectional Area of 16mm - regardless of "new technology".

DAMN' ..... beaten to it by SJD !!!

 

[telectrix]

Johhny

The 16mm and the 25mm refer to the Cross Sectional Area of the core of the cable. The core is the bare metal part without the plastic covering.

It is therefore very unlikely that a cable with a Cross Sectional Area of 25mm will ever be thinner than one with a Cross Sectional Area of 16mm - regardless of "new technology".

DAMN' ..... beaten to it by SJD !!!

and me, and ben. geordie youse getting slow on yer old age. :sweatdrop:

 

[Geordie Spark]

and me, and ben. geordie youse getting slow on yer old age. :sweatdrop:

You wouldn't have said that if you'd seen me running to the bog at 4am this morning !!! :sick: uke:

 

[Jdsparky]

Defies the laws of physics that the csa can be 25mm but magically smaller than 16mm lol

 

[Knobhead]

Formed and rolled conductors can apear to be small amd you've no chance of measuring the CSA. The only way to do it is by weight:
16mm = 143Gm/M
25mm = 223Gm/M
Stripped of the insulation.

 

[OldeSparky]

all my 2.5 cable is now 6.0

 

[the pict]

And I can remember when a pint woulnd't fit in a half pint pot
Pict