Tony Antoniou wrote:
>
> But for the sake of common practice for the protection of sensitive
> electronics, keeping something grounded is a good thing to do. I can
Keeping the negative terminal of a battery connected while the positive
is disconnected doesn't afford any grounding protection. That
protection comes from the large mass of metal of the vehicle's body.
Once your sensitive equipment is disconnected from the vehicle body it
becomes vulnerable to static discharges etc.
As soon as one battery terminal is disconnected the circuit is open and
no current will flow. The only difference between having positive or
negative disconnected is the potential relative to the car of the
unconnected terminal, and that is of no consequence.
> you can
> also face serious consequences when the positive lead is still connected
> even though the negative lead isn't. I've seen it happen, despite the fact
> that it shouldn't, theoretically.
What have you seen happen? What are these serious consequences?
> Besides, if you know what you're doing, you're careful with your spanners. I
> must be 3#-)
Agreed.
-cb
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