Reminder: Never connect a generator to home wiring without transfer switch

Mark Tinka mark at
Thu Aug 26 04:50:58 UTC 2021

On 8/25/21 20:30, bzs at wrote:

> Ok, I'll be the curmudgeon...
> Is this really a problem in practice?

The issue is that "it can be".

Solar inverter OEM's have long argued that UL 1741 is too stringent 
because the assumption is that linesmen always check for voltage on the 
line before working on it.

Multiple layers of protection are the way to go here. Just as in our 
industry, just a route-map may not be enough. A route-map + prefix list 
is a better plan.


More information about the NANOG mailing list