On Sat, 31 Dec 2016 17:44:06 -0000, Andy Burns wrote:

James Wilkinson Sword wrote:

Think of it this way, ten 1mm cables would carry 10 times one 1mm
cable. All you've done with the 10mm cable is shove them all
together.

Think! How does the surface area increase relative to the
cross-sectional area? How might that affect heat dissipation?

Why don't you suggest to the morons making the wire to just put the current rating on it?

--
As the coffin was being lowered into the ground at a Traffic Wardens funeral, a voice from inside screams:
"I'm not dead, I'm not dead. Let me out!"
The Vicar smiles, leans forward sucking air through his teeth and mutters:
"Too late pal, I've already done the paperwork"