connect a lightbulb to a battery: You have no ground, or floating
ground. That's 12VDC
connect a lightbulb to a battery, and run a ground wire to the negative
terminal, and the lightbulb socket has negative connected to a ground
lug, which you, the operator, presumably connect to ground. That's +12VDC
connect a lightbulb to a battery, and run a ground wire to the positive
terminal, and the lightbulb socket has positive connected to a ground
lug. That's -12VDC. Now if you run your lighbulb power line
underground, it will corrode more slowly than it does the other two
ways, so you'll keep doing -V forever and make that your standard
because you're the underground DC lightbulb company that runs lots of
underground wires. Then the vendors that make equipment for you will
start making all their stuff -V because they want you to be a happy
customer.
....just don't install a +V lightbulb and -V lightbulb on the same
battery, or you melt the battery.
Substitute lightbulbs and batteries with power sources and loads of choice.
On 6/29/2015 5:54 PM, That One Guy /sarcasm wrote:
i dont understand -/+
this is a dick move on an EE part. He woke up one day and said, "Im
going to be a cock"
I assume there is a reason, but I still like to believe in assholes.
On Mon, Jun 29, 2015 at 4:49 PM, George Skorup <[email protected]
<mailto:[email protected]>> wrote:
I have a standard, but I'm sure nobody else will like it. I do red
for +24, orange for +48 and blue for -48. Black is always return.
On 6/29/2015 4:35 PM, Adam Moffett wrote:
in DC I've been doing red for positive and black for negative
for my entire life.....read that in a book when I was in
elementary school.
Do they do things differently with -48? It just occurred to
me that a different color code would be an easy way to alert
people that they're seeing positive ground.
--
If you only see yourself as part of the team but you don't see your
team as part of yourself you have already failed as part of the team.
