[RFI] Galaxy Grow Light Ballast Update

[Jim Brown]

On Mon,2/1/2016 1:19 PM, Tom Thompson wrote:
> I respectfully disagree.  The choke in the green wire and the common 
> mode choke both are 300uH.  A short circuit current between the hot 
> and the green wire would pass through both chokes in series. At 60 Hz 
> the total impedance is 0.2 ohms which is not going to affect the 
> breaker or fuse  blowing.

But it's NOT 60 Hz, it's an impulse. And if the choke is effective at 
killing RFI, it's got significant resistive impedance at the frequencies 
of that impulse.

The question is not WILL it blow the fuse/breaker, but will it blow FAST 
ENOUGH to protect someone from electrical shock.

73, Jim