Note that while many have gotten away with bypassing or ignoring the national and local electrical codes for some time this is not a practice that we should embrace or endorse. There are fines and penalties to be paid if you get caught and in a moment of inatentiveness lives can be lost.
Please lets not endorse unsafe or illegal activities here.
Even if you think you know what you are doing don't bypass safety regulations. What we think we know does not put us above them.
If in doubt try to get a building permit to rig up one of the mentioned alternatives to installing a real transfer switch and see how far you get toward having it signed off and passed with a final inspection.
I was head of building and plant maintenance working with 40' steam boilers, 3 phase bus bar electrical systems, 15 to 35 kilowatt power plants, multi ton anhydrous amonia systems and the list goes on. I do know how to in theory safely do this as long as one is 100% attentive and never ever makes a mistake however I will not do it or endorse it because of the electrical code and the human factor. Humans eventually will make mistakes and a mistake involving electricity a generator and the utility power grid is not one any of us wants to be involved with.
I you backfeed the powergrid the potential is not the 110/220 volts of your generator but the backfed, out of sync conversion to a minimum of 4000 volts (I also did some electrical utility mapping for WP&G, several US municipalities and the Canadian Government and 4000 volts is the lowest voltage I recall for a residential power grid) the power grid transformer will be putting back into the power grid.
Please keep it safe.
Please lets not endorse unsafe or illegal activities here.
Even if you think you know what you are doing don't bypass safety regulations. What we think we know does not put us above them.
If in doubt try to get a building permit to rig up one of the mentioned alternatives to installing a real transfer switch and see how far you get toward having it signed off and passed with a final inspection.
I was head of building and plant maintenance working with 40' steam boilers, 3 phase bus bar electrical systems, 15 to 35 kilowatt power plants, multi ton anhydrous amonia systems and the list goes on. I do know how to in theory safely do this as long as one is 100% attentive and never ever makes a mistake however I will not do it or endorse it because of the electrical code and the human factor. Humans eventually will make mistakes and a mistake involving electricity a generator and the utility power grid is not one any of us wants to be involved with.
I you backfeed the powergrid the potential is not the 110/220 volts of your generator but the backfed, out of sync conversion to a minimum of 4000 volts (I also did some electrical utility mapping for WP&G, several US municipalities and the Canadian Government and 4000 volts is the lowest voltage I recall for a residential power grid) the power grid transformer will be putting back into the power grid.
Please keep it safe.