[aprssig] Emergency Power for Ham stuff

Keith VE7GDH ve7gdh at rac.ca
Wed Jan 20 01:25:34 EST 2016

Ray VK2TV wrote…

> My concern isn't about using the laptop power supply, it's about
> tapping the HV DC solar system to run the power supply. 300V DC
> can be lethal.

It's good to be cautious, but properly installed, it shouldn't
be any more dangerous than plugging any appliance into a 230V
outlet. I don't think Bob intended for anyone to be fiddling
with live wires from a high voltage solar array in full sunlight
with bare hands while standing in a puddle.

Of course, I'll never forget reaching into my first power
supply and learning the hard way why a bleeder resistor should
have been installed across the filter capacitor!

73 Keith VE7GDH

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