Medic21
Minister of Fire
The neutral and ground are bonded in the same bar to provide a safety if something happens to the neutral line. That way you don’t become the ground path conductor.
I backfeed often, because the power in our area is sketchy. My first step is to throw the main. Then I hook up my generator to a welder outlet. with the neutrals and the and the grounds all attached to the same bar how can this push current back into the line?
I may not always be around to make sure that things are done right when the grid goes down. I plan like I'll have to explain how to do it to my wife by text or phone call. I also have written instructions.As long as you remember to throw that main, it's fine and safe but not legal. The interlock simply forces you to shut off the main before engaging the inlet circuit and makes the backfeed legal. The inlet circuit has just a male plug. which can be used with a regular extension cord from your genset that has female receptacles.
.....I will make sure that I switch the main feed from the power company off when I run the generator. (I'll probably make a reminder on the garage breaker box since the main feed is in the house)
This to me is the biggest red flag issue I'm seeing. If I'm understanding it correctly - his plan requires him to *remember* to turn off his main breaker to avoid energizing the power grid. This is inherently risky. A breaker interchange panel automatically disengages your house from the electrical grid. You can draw power from the grid OR from your generator. There is no way to have both connected at the same time.
I don't see how he can safely hook this up by backfeeding a generator into a sub panel in the garage. The generator interchange has to be connected between the electrical meter and the main breaker panel. He can still use the idea of keeping the generator in the garage, but he would need a cord capable of reaching from the garage to the interchange panel that is between the meter and main breaker panel.
I'm sure it doesn't matter where you live, having any system that requires human intervention to avoid accidentally energizing the grid is going to be illegal and likely fatal to the lineworkers who are out trying to fix the power outage in the first place.
I like that idea. Maybe I will just install one of those and move the generator just outside the house. For the amount of times I will be using it, it shouldn't be that big of a hassle.
line workers actually ground the system they are wiring on or treat it as live. They run into this constantly and plan for it.
Every accident scene I have ever been on where a pole was taken down, there have been hundreds is 25 years, they have grounded the wires after isolating the circuit. All before we could do our thing. Specifically for the possibility of a generator coming on.No, we don't.
At least where we live, the outages are rarely caused by a pole being taken down. Usually, its ice/wind/trees taking down some wires or causing a short.Every accident scene I have ever been on where a pole was taken down
Every accident scene I have ever been on where a pole was taken down, there have been hundreds is 25 years, they have grounded the wires after isolating the circuit. All before we could do our thing. Specifically for the possibility of a generator coming on.
I figured that was an industry standard since it was two different companies.
On an accident pole, yes, usually. During a storm, not always. It's two very different situations. Yes, we are always supposed to either work something like it's live, or ground it. That works on an accident pole, or during the first couple days of a storm. But after working three or four sixteen hour days in a row, a lot of that goes out the window. Guys are still wearing rubber gloves, but end up coming in contact with wires, or handling wires on the ground that aren't grounded. I'm not saying it's right, but that is what happens. In a storm situation we're trying to restore power to as many people as fast as we can. You're always thinking of those who don't have heat, or water. Or someone with kids, who's losing a freezer full of meat. We always will de-energize, test, and ground a circuit before police/fire have to extract someone, or work on them in a car.
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Really? You just admitted that the safety rules are ignored when your busy. That would be like me just jumping in because I think power is dead. Not too smart.
and you proved what I said was right. You’re supposed to do it but, you don’t...
The reason I have a job in emergency services...
I didn’t read human error. I read being lazy not following safety rules, and trying to justify it. When in the end all it is is a way to get yourself killed. I showed this to a local lineman and his response, And he’s a safety manager, was it that was one of his employees he be fired for a post like that.May I point out that Burnman was talking about introducing human error after working long hours, day and night, in harsh weather conditions. Mistakes can and do happen. We are also talking about human error that can happen when a generator is back fed into a homes power supply. To condemn one situation, but excuse the other one is..... beyond stupid. Especially when people are back feeding because they are either too lazy or cheap to hook up their generator properly.
Really - what *valid* justification is there for someone to not hook their generator up properly and safely?
Really? You just admitted that the safety rules are ignored when your busy. That would be like me just jumping in because I think power is dead. Not too smart.
and you proved what I said was right. You’re supposed to do it but, you don’t...
The reason I have a job in emergency services...
Aren't you the one here stating you backfeed your service by opening the main, and using a double male cord (not chord)? You know your set-up is not legal, and they refer to that as a suicide cord for a reason?
I'm not ignoring any safety rules, and what I do would be nothing like you jumping in because you thought the power is dead because I know what I'm doing, and you know just enough to be dangerous. Even a grounded line can have potential during a backfeed or a fault, because the ground is just a parallel path.
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