Power cable education needed


Hi everyone. I need some education on power cables. I have been reading that a good power cable is vital to a good sounding system. If that is true wouldn’t the companies the make the components include a good power cable to insure their product sounds the best that it can ? Should I evaluate the power cables in all of the components in my system? 
ronboco
the component relies on the incoming fuse to protect it from getting hit with too much power
Uhhh.... fuses aren't current limiting devices. Components draw as much power as they draw, all according to Ohm's law, I=V/R. Put a 10 ohm resistor across a 10 volt potential, it will draw 1 ampere of current for 10 watts (I*V) of power. If you put a 300 amp fuse in front, it still draws 1 amp, because, well, 10 ÷ 10 = 1.  Not a problem if it's a 1 watt resistor. But if it's only a half watt resistor, a half amp fuse won't "limit" the current to half an amp. Its filament will melt, releasing the magic smoke that limits the current to exactly 0 amperes, and leaves the component's magic smoke fully intact.
My previous comment also begs the question, if the power cord needs to be triple-ought gauge, quadruple shielded adamantium for audio to sound decent, imagine how much better that $800 cable would sound if 100% of it's current didn't have to travel across the 30 gauge filament of the fuse you got for a couple bucks.
A fuse is an electrical safety device that protects an electric circuit from excessive electric current. Fuses are destroyed during overload conditions. When reasonable to do so (and economically sensible), circuit breakers are used instead because they are not destroyed during overload conditions. It's cheaper to install fuses than circuit breakers, but since fuses need to be replaced and circuit breakers don't, fuses have a higher operational 


where did I go wrong?
I think I understand your point...I just can’t explain it. Let me try though, if you had a giant power cord, like half inch thick wires And a circuit blew inside the appliance it doesn’t matter how big the wire is before the fuse...It’s not like the large wire is holding a huge amount of electrical current as if it was water. The fuse was low and that would be the end of it. Am I close? Thanks for pointing that out