Bingo. I've always done it this way, and for the reason Butch suggests.
In a perfect world it probably doesn't matter, but wrenches slip
and things can happen.
73, Steve KW3A
On 10/24/2014 5:35 PM, Butch Bussen wrote:
> Your xyl is right. I've seen this in many instructions for jumper cables
> and so forth. The idea is if you disconnect the ground first, if the
> rench accidentally touches ground, no problem. If it does while you're
> unhooking the positive wire, you get a short. If y ou unhook the ground
> first, even if the rench touches ground, nothing will happen. Hope that
> makes sense.
> 73
> Butch
> WA0VJR
> Node 3148
> Wallace, ks.
>
>
>