Effects of Vibration Heat on Cables

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#1Aug 22, 2017, 10:57 AM
What kind of long-term impacts do electrical vibrations have on various materials? Thinking about stuff like 3MM copper wire, steel wire, and aluminum wire. Is it possible for them to melt under a constant flow of 8KW at 240V? I’ve noticed some 1mm copper wires getting super hot while pulling 120A from a 240V power supply.
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degen_2020Full Member
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#2Aug 22, 2017, 01:12 PM
You are running 120A through 1mm diameter wire? I'm surprised it doesn't just melt. Looks like 120A would need something >5mm diameter. https://www.powerstream.com/Wire_Size.htm
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mike_farmSenior Member
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#3Aug 22, 2017, 03:20 PM
I think you should have an electrician inspect that everything is done according to the Swedish electrical installation code. Do it before you have a fire hazard.
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#4Aug 22, 2017, 07:10 PM
Well it was from PSU and not direct from the walls. Walls are pulling about 30A on 2.5mm copper wire.
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mike_farmSenior Member
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#5Aug 23, 2017, 12:38 AM
Ok. I did not see it from the opening post. Sorry. 30A is way too much for 2.5mm2 (square millimeters) copper wire though..! So you still need the electrician visit you and fix things.
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